1 KeyMod vs. M-LOK Modular Rail System Comparison Abstract #19427 Presented By: Caleb McGee Date: 4 May 2017 CAPT JT Elder Commanding Officer NSWC Crane Dr. Brett Seidle, SES Technical Director NSWC Crane
2 Background History The MIL-STD-1913 Accessory Mounting Rail was standardized in MIL-STD-1913 Quad-rail Handguards currently in use. MK18 Mod 1 Carbine. Upper Receiver Group (URG). Industry developed, low profile handguards with as needed accessory mounting panels. Rail panels can be positioned using holes machined into the handguard.
3 Background KeyMod Originated by VLTOR Weapon Systems and released in Developed as a standardized accessory mount platform. Supports direct mounting of accessories and 1913 accessory rail sections. Current civilian market moving towards direct mounting of accessories. KeyMod accessories interface with KeyMod handguards by: Inserting mounting nuts of accessory through the large portion of the KeyMod slot. Sliding the accessory fully forward in smaller front portion of key shaped slot. Tightening accessory bolts to secure in place.
4 Background M-LOK Originated and released by MAGPUL in early MAGPUL cites improved performance in polymer accessories using M-LOK. Allows for mounting of accessory rails to low-profile handguard designs. Functions by passing mounting T-nuts on an accessory through the slots in the handguard. Tightening the accessory bolts rotates the T-nuts to rotate 90 and lock, allowing the bolts to be torqued.
5 Overview Objectives Qualitative and quantitative comparisons of both the KeyMod and M-LOK accessory mounting systems. Recommendation of which system provides superior performance based on a comparative analysis of the two mounting options. Scope Determination on whether KeyMod and M-LOK is the superior accessory mounting system in regards to repeatability, endurance, rough handling, drop testing, and failure load. Testing was not necessarily focused on simulating exact operational requirements; instead, the tests were designed to provide a direct comparison between the two systems in situations that may far exceed standard field conditions.
6 Sample Arrangement Handguards Three manufacturers selected that fabricate the same handguard in both KeyMod and M-LOK variants. Three KeyMod and three M-LOK handguards per manufacturer. Total of eighteen handguards used for rail system evaluation. KeyMod M-LOK Aero Precision Midwest Industries Seekins
7 Sample Arrangement Weapon Sample ID Each handguard was installed on a 14.5-inch URG in place of the MIL-STD-1913 quad-rail. Each URG and respective handguard were labeled with a Weapon ID. Weapon ID LRG URG A1 M4A1 Aero Precision - KeyMod A2 M4A1 Aero Precision - KeyMod A3 M4A1 Aero Precision - KeyMod A4 M4A1 Aero Precision - M-LOK A5 M4A1 Aero Precision - M-LOK A6 M4A1 Aero Precision - M-LOK B1 M4A1 Midwest Industries - KeyMod B2 M4A1 Midwest Industries - KeyMod B3 M4A1 Midwest Industries - KeyMod B4 M4A1 Midwest Industries - M-LOK B5 M4A1 Midwest Industries - M-LOK B6 M4A1 Midwest Industries - M-LOK C1 M4A1 Seekins - KeyMod C2 M4A1 Seekins - KeyMod C3 M4A1 Seekins - KeyMod C4 M4A1 Seekins - M-LOK C5 M4A1 Seekins - M-LOK C6 M4A1 Seekins - M-LOK
8 Repeatability Objective Quantify repeatability by Point of Aim (POA) shift measurement of accessory rails from repeated installation and removal. Equipment 18 URGs: 3 per handguard configuration 3 KeyMod 9-slot accessory rails 3 M-LOK 9-slot accessory rails 1 Vice with mounting blocks 1 Grid target: 5 graduations per inch 1 SL-150M laser boresighter 1 Laser sight
9 Repeatability: Procedure Procedure URG mounted in vice and aimed at grid target. 9-slot accessory rail installed on handguard per respective manufacturer instructions. Laser sight mounted on a 9-slot accessory rail. SL-150M laser boresighter inserted in muzzle end of barrel. Laser sight zeroed to boresighter laser POA. Accessory rail removed and reinstalled on the handguard. Without removing laser sight from accessory rail. Measure distance between projected boresighter laser point and laser sight point. Re-installation repeated for total of 5 measurements. Without re-zeroing the laser sight.
10 Repeatability: Results Results POA Shift POA shift measurements were converted from Cartesian coordinates to angular measurements. Reported as minimum, maximum, and average POA shift of the 5 measurements per handguard in minutes of angle (MOA). Weapon ID System POA Shift (MOA) Avg. Min. Max. A1 KeyMod A2 KeyMod A3 KeyMod A4 M-LOK A5 M-LOK A6 M-LOK B1 KeyMod B2 KeyMod B3 KeyMod B4 M-LOK B5 M-LOK B6 M-LOK C1 KeyMod C2 KeyMod C3 KeyMod C4 M-LOK C5 M-LOK C6 M-LOK
12 Repeatability: Analysis Analysis M-LOK Installation Sensitivity M-LOK repeatability dependent on correct installation. Tested worst case repeatability incurred when M-LOK accessory is not properly installed per manufacturer instructions. Installed M-LOK accessory rail per manufacture instructions and zeroed laser sight. Removed and reinstalled accessory rail at maximum angle allowed within the M-LOK slot. Improperly installed average POA shift: 18.4 MOA Properly installed average POA shift: 1.3 MOA Weapon ID POA Shift (MOA) Left Right A A A B B B C C C
13 Endurance Objective Evaluate mounting systems in an environment simulating M4A1 full-auto fire in an aggressive firing schedule. Cost and time savings. Avoids cook-off hazards incurred above 120 rounds during live full-auto fire. Equipment 1 Cyclic load machine 1 M4A1 lower receiver 6 URGs: 1 per handguard configuration 3 KeyMod 5-slot accessory rails 3 KeyMod 9-slot accessory rails 3 M-LOK 5-slot accessory rails 3 M-LOK 9-slot accessory rails 1 Weapon light, rail-mounted 1 Laser sight, unserviceable 1 Flash hider shim set
14 Endurance: Procedure Procedure Barrel threaded to barrel adapter plate on the cyclic load machine. ½-28 UNEF-2A M4A1 barrel thread. Flash hider shims used to control weapon orientation. Weapon light mounted to 5-slot accessory rail at 9 o clock position. Laser sight mounted to 9-slot accessory rail at 3 o clock position. Accessory rail fastener inspected periodically using index marks.
15 Endurance: Procedure Procedure (cont d) Aggressive firing schedule at full-auto firing rate in displacement per cycle. Generate recoil inertial forces. 17 Hz cycle rate. Simulate 1020 rounds per minute (RPM). 30 cycle bursts separated by 2 second pauses. Simulate live fire of one 30-round magazine with a pause to change magazines. 17 simulated magazines or 510 simulated rounds per iteration. 20 Iterations for 10,200 simulated rounds per handguard. Parameter Waveform Frequency Amplitude No. of Cycles Setting Sinusoidal 17 Hz 0.15 in 30 Cycles
16 Endurance: Results & Analysis Results & Analysis No failures or fastener loosening observed for KeyMod or M-LOK systems. Both KeyMod and M-LOK demonstrated ability to withstand cyclic forces at the M4A1 maximum cyclic rate. All handguards resisted system failure and fastener loosening.
17 Rough Handling Objective Evaluate mounting system performance when subjected to forces in excess of typical usage and endurance test loading. Equipment 1 Cyclic Load Machine 1 M4A1 lower receiver 6 URGs: 1 per handguard configuration 3 KeyMod 5-slot accessory rails 3 M-LOK 5-slot accessory rails 1 Weapon light, rail-mounted 1 Flash hider shim set
18 Rough Handling: Procedure Procedure Weapon light mounted to 5-slot accessory rail at 9 o clock position. Test parameters setup to generate a triangular waveform. Triangular waveform generates larger peak loads than sinusoidal waveforms at the same frequency and amplitude. Sharp peaks require higher peak acceleration of actuator to reverse direction. 4 iterations of increasing peak load. Frequency held constant across all iterations. Displacement iteratively increased to produce higher peak loads. First iteration has similar peak loads to endurance testing. Fourth iteration produces the maximum load produced by cyclic load machine. Limited by the relatively mass of the M4A1.
19 Rough Handling: Results Results The position vs. time and load vs. time curves for each iteration recorded. Similar results observed for each handguard tested. Iteration 1: Input displacement: 0.1 in Actual displacement: <0.1 in Peak load: ~200 lbf Iteration 1: 200 lbf Parameter Setting Waveform Triangle Frequency 17 Hz Amplitude 0.1 in No. of Cycles 30 Cycles Endurance Test Handguard A2 Iteration 1 Position vs. Time & Load vs Time First 30 Rounds
20 Rough Handling: Results Results (cont d) Iteration 2: Input displacement: 0.2 in Actual displacement: in Peak load: ~300 lbf Iteration 2: 300 lbf Parameter Setting Waveform Triangle Frequency 17 Hz Amplitude 0.2 in No. of Cycles 30 Cycles Endurance Test Handguard A2 Iteration 2 Position vs. Time & Load vs Time First 30 Rounds
21 Rough Handling: Results Results (cont d) Iteration 3: Input displacement: 0.27 in Actual displacement: in Peak load: ~350 lbf Peak load less consistent, small deviations. Iteration 3: 350 lbf Parameter Setting Waveform Triangle Frequency 17 Hz Amplitude 0.27 in No. of Cycles 30 Cycles Endurance Test Handguard A2 Iteration 3 Position vs. Time & Load vs Time First 30 Rounds
22 Rough Handling: Results Results (cont d) Iteration 4: Input displacement: 0.5 in Actual displacement: in Peak load: ~400 lbf Peak load varied significantly. Iteration 4: 400 lbf Parameter Setting Waveform Triangle Frequency 17 Hz Amplitude 0.5 in No. of Cycles 30 Cycles Endurance Test Handguard A2 Iteration 4 Position vs. Time & Load vs Time First 30 Rounds
23 Rough Handling: Analysis Analysis No failures or fastener loosening observed for KeyMod or M-LOK systems. Both KeyMod and M-LOK systems found to be adequate for securing accessories when subjected to high frequency, high acceleration vibrational loads. No damage observed to the handguards or accessory rails. No fastener loosening observed.
24 Drop Test Objective Evaluate mounting system performance from dynamic, impact loads including impacts directly on the accessory. Equipment 1 M4A1 lower receiver 6 URGs: 1 per handguard configuration 3 KeyMod 5-slot accessory rails 3 M-LOK 5-slot accessory rails 6 Weapon light mounts 1 Simulated weapon light
25 Drop Test: Procedure Procedure Simulated weapon light installed on 5-slot accessory rail. Accessory rail installed at 9 o clock on handguard in forward most position. 6 drops per handguard of the 6 specified orientations. All samples were dropped from a height of 5ft onto steel plate. Handguard and accessory examined after each drop. Drop Number Drop 1 Drop 2 Drop 3 Drop 4 Drop 5 Drop 6 Orientation Major axis horizontal - normal firing orientation Major axis vertical - buttstock down Major axis vertical - muzzle down Major axis 45 from vertical - buttstock down Major axis 45 from vertical - muzzle down Major axis vertical - muzzle down weapon light impact
26 Drop Test: Results Results KeyMod Handguard A1 Drop 1 no damage. Drop 2 accessory rail loose, but in position. Drop 3 no damage. Drop 4 rear mounting nut to pulled through handguard. handguard fractured between KeyMod slots. Drop 5 accessory rail detached from handguard. Drop 4 Drop 6 not conducted. Drop 5
27 Drop Test: Results Results KeyMod Handguard B1 Drop 1 fractures on the 12 o clock rail. Drop 2 no new damage. Drop 3 handguard slid forwards off the barrel nut approximately 0.5 in. accessory rail loose. Drop 4 handguard rotated on the barrel nut ~30 CW. fracture between the KeyMod slots. Drop 5 handguard slid further off barrel nut. barrel was no longer parallel handguard. Drop 4
28 Drop Test: Results Results KeyMod Handguard B1 (cont d) Drop 6A failed drop, simulated weapon light missed raised block. handguard completely separated from barrel nut. simulated flashlight missed the raised block. Drop 6B handguard was reattached to the weapon. accessory rail detached from handguard on impact. final position 8ft-4in (2.5 m) from handguard. Drop 6A Drop 6B
29 Drop Test: Results Results KeyMod - Handguard C1 Drop 1 no damage. Drop 2 scrape at 3 o clock position on the handguard. Drop 3 slight gap was between the handguard and receiver. weapon light slid forward ~2 mm (~0.08 in) within the flashlight mount. Drop 4 scraping on handguard. Drop 5 fracture between the KeyMod slots. Drop 6 major handguard damage around accessory rail. accessory rail loosened but remained attached to the deformed handguard. Drop 5 Drop 6
30 Drop Test: Results Results M-LOK - Handguard A4 Drop 1 no damage. Drop 2 slight deformation of accessory rail. Drop 3 weapon light slid forward in weapon light mount. Drop 4 fracturing of handguard, not near accessory rail. Drop 5 no new damage. Drop 6 significant rearward displacement of accessory rail in M-LOK slot. Drop 2 Drop 6
31 Drop Test: Results Results M-LOK - Handguard B4 Drop 1 significant damage to 12 o clock rail. Drop 2 no new damage. Drop 3 handguard displacement on barrel nut. slight handguard rotation on barrel nut. Drop 4 increased handguard displacement on barrel nut. Drop 5 handguard rotation ~45 on barrel nut. increased handguard displacement on barrel nut. Drop 6 handguard pushed rearward onto barrel nut, damaging torque plate. accessory rail remained in place with minimal movement. Drop 6
32 Drop Test: Results Results M-LOK - Handguard C4 Drop 1 slight rotation of simulated weapon light in mount. Drop 2 no new damage. Drop 3 slight rearward displacement of accessory rail in M-LOK slot simulated weapon light slight displacement in mount. Drop 4 slight rearward displacement of accessory rail in M-LOK slot. Drop 5 no new damage. Drop 6 significant rearward displacement of accessory rail in M-LOK slot. minor deformation of handguard behind the accessory rail. Drop 3 Drop 4 Drop 6
33 Drop Test: Analysis Analysis 1 M-LOK system: secured and in initial position. Handguard B4 1 KeyMod system: loosely secured in initial position with major handguard damage. Handguards C1 2 M-LOK systems: secured but displaced rearwards in mounting slots. Handguards A4 & C4 2 KeyMod systems: accessory detached. Handguards A1 & B1 Weapon ID System Status Final Condition A1 KeyMod Detached Fractured KeyMod Slots B1 KeyMod Detached Fractured KeyMod Slots C1 KeyMod Attached Loosened Bolts A4 M-LOK Attached Pushed Rearward B4 M-LOK Attached Intact & Initial Location C4 M-LOK Attached Pushed Rearward
34 Drop Test: Analysis Analysis (cont d) KeyMod Damage: Complete separation of accessory rail from handguard. Fracture between the two KeyMod slots utilized. Fracture between utilized KeyMod slot and an adjacent slot. No major damage to KeyMod fasteners. Front of KeyMod slots damaged where fasteners were mounted. No removed material captured between accessory rail and mounting nut. A1 B1
35 Drop Test: Analysis Analysis (cont d) M-LOK Damage: Accessory rail remained intact and securely attached to the handguard. Accessory rail pushed rearwards from initial index location. Scraping marks on the handguards from the rearward displacement of accessory rail. M-LOK impact damage initiates with rearward displacement of accessory rail. KeyMod impact damage initiates with fracturing between slots contributing to detachment of accessories. A4 B4
36 Failure Load Objective Evaluate failure mode and quantify the failure load of mounting systems when subjected to a tensile normal to the primary axis of the handguard. Equipment 1 Cyclic load machine 1 Test stand 12 URGs: 1 per handguard configuration 6 KeyMod 5-slot accessory rails 6 M-LOK 5-slot accessory rails 6 Weapon light mounts 1 Handguard test fixture 1 Simulated weapon light 1 3/4-16 eyebolt 1 3/4-24 eyebolt 1 Steel chain 1 Steel quick-link
37 Failure Load: Procedure Procedure Test parameters: Linear displacement ramp Single direction: tensile load Constant rate: 0.1 in/s Force applied to the accessory rail through the simulated weapon light. Steel chain, eyebolts, and quick links used to connect the simulated flash light to the actuator. Purpose-built handguard fixture secured samples to the test stand. U-blocks with adjustable position along the handguard. Each accessory rail was pulled by the simulated weapon light until failure occurred.
38 Failure Load: Results
39 Failure Load: Analysis Analysis KeyMod system loading shows mostly linear, elastic properties. M-LOK system loading shows non-linear properties, especially at high loads. Some momentary load drops from fixture slipping.
40 Failure Load: Analysis Analysis (cont d) KeyMod systems showed nearly identical failure mode to that observed in drop testing. Complete separation of accessory rail from handguard. Fracture between the two KeyMod slots utilized. Fracture between utilized KeyMod slot and an adjacent slot. No major damage to KeyMod fasteners. Front of KeyMod slots damaged where fasteners were mounted. No removed material captured between accessory rail and mounting nut.
41 Failure Load: Analysis Analysis (cont d) All M-LOK tests featured failure modes at the weapon light mount. 1/6 samples: mount fractured near clamping end. 5/6 samples: mount pulled off of the deformed accessory rail. Increase of 215% in average sustained load of M-LOK over KeyMod. M-LOK system tests showed % increase in sustained load over the maximum KeyMod load observed.
42 Conclusions Repeatability M-LOK achieved a 73% improvement in average POA shift over KeyMod. Endurance KeyMod and M-LOK system performance exceeded cyclic load test conditions. Rough Handling KeyMod and M-LOK system performance exceeded cyclic load test conditions. Drop test 100% of M-LOK accessories remained attached. 1/3 M-LOK accessories remained in-place. 2/3 M-LOK accessories slid rearwards but remained secure. 33% of KeyMod accessories remained attached. 1/3 KeyMod accessories remained attached, but severely damaged handguard. 2/3 KeyMod accessories completely detached. Failure Load Average M-LOK test failure load over 3 times greater than average KeyMod system failure load. All KeyMod failures occurred at the interface between the handguard and accessory rail. All M-LOK system tests failed at weapon light mount or mount to accessory rail interface.
43 Contact Information Caleb McGee Naval Special Warfare Center Crane Division 300 Highway 361 Crane, IN
ARDEC Rapid Design Projects for Field Support Part 1 L-Bracket for use with M240B Medium Machine Guns on HMMWVs with Gunner s Protection Shield (NSN 2510-01-498-4996) Michael Narus Robert Mulfinger Anthony
2014 Lancer Systems all rights reserved PROPRIETARY NOTICE: This contains Lancer Systems confidential, proprietary and/or competition sensitive data. ITAR NOTICE: Warning This document contains technical
1 Switch design optimisation: Optimisation of track gauge and track stiffness Elias Kassa Professor, Phd Department of Civil and Transport Engineering, NTNU Trondheim, Norway E-mail: firstname.lastname@example.org
135 CHAPTER 6 MECHANICAL SHOCK TESTS ON DIP-PCB ASSEMBLY 6.1 INTRODUCTION Shock is often defined as a rapid transfer of energy to a mechanical system, which results in a significant increase in the stress,
3 rd International Linear Friction Welding LFW Seminar 2015 Overview of current KHI LFW development program 19th/March/2015 Hironori Okauchi Manufacturing Technology Department System Technology Development
knightarmco.com product catalog 2 Knight s Armament Company TABLE OF CONTENTS COMPANY BIO SR-25 SERIES RIFLES SR-30 SERIES RIFLES SR-15 SERIES RIFLES UPPER RECEIVER ASSEMBLY KITS SIGNATURE REDUCTION DEVICES
Standard Direct Impingement AR-15 s List UPPER RECEIVER COMMON PARTS 1. Select (1) of the following UPPER RECEIVER options: Complete Upper Receiver with Barrel, or Complete Upper Receiver Without Barrel
Page 0171 Accelerated Testing of Advanced Battery Technologies in PHEV Applications Loïc Gaillac* EPRI and DaimlerChrysler developed a Plug-in Hybrid Electric Vehicle (PHEV) using the Sprinter Van to reduce
Non-Contact Sensor Performance Report Abstract The 30mm non-contact sensor (Encoder) was subjected to a variety of tests outside of the recommended usage parameters. The separation distance, planar tilt,
Electric Drives and Controls Hydraulics Linear Motion and Assembly Technologies Pneumatics Service TS Transfer System Version.0 The Drive & Control Company 0 Bosch Rexroth AG TS.0 3 0 30 (00. Symbols No.
More Precision mainsensor Magneto-inductive displacement sensor mainsensor Magneto-inductive sensors for non-contact linear displacement measurement Measuring principle mainsensor is based on an innovative
RD.9/175.3 Ricardo plc 9 1 FD7 Electric Vehicle Component Sizing vs. Vehicle Structural Weight Report Research Report Conducted by Ricardo for The Aluminum Association 9 - RD.9/175.3 Ricardo plc 9 2 Scope
P01 LinMot P is a family of linear direct drives for highly dynamic motions. The motor is made up of just two parts: the slider and the stator. The two parts are not connected by brushes or cables. The
MGA Research Corporation Real Time Simulation Testing Gerald Roesser David Nagle Thomas Hutter MGA Research Corporation 1 MGA Research Corporation PRESENTERS Gerald Roesser BSEE MGA Associate since 2001
PRODUCT RELIABILITY TESTING: Environmental, Mechanical and Packaging Case study: 19 Rackmount Switch Herb Schueneman President & CEO Presenter Mike Brown Laboratory Manager Presenter June 2015 Overview
Vibration Measurement and Noise Control in Planetary Gear Train A.R.Mokate 1, R.R.Navthar 2 P.G. Student, Department of Mechanical Engineering, PDVVP COE, A. Nagar, Maharashtra, India 1 Assistance Professor,
Long Stroke Shaker with Linear Ball Bearings Page 1 of 5 The APS 420 ELECTRO-SEIS shaker is a long stroke, electrodynamic force generator specifically designed to be used alone or in arrays for studying
Reduction of Self Induced Vibration in Rotary Stirling Cycle Coolers U. Bin-Nun FLIR Systems Inc. Boston, MA 01862 ABSTRACT Cryocooler self induced vibration is a major consideration in the design of IR
NVH vs. Vehicle Fuel Economy Trade-off Mario Felice, Jack Liu, Imad Khan Ford Motor Company Jonathan Zeman, Llorenc Gomez Gamma Technologies Wulong Sun MSC Software Michael Platten Romax Technology 2015
WP#-2015-3 HVE Vehicle Accelerometers: Validation and Sensitivity Kent W. McKee, M.E.Sc., P.Eng., Matthew Arbour, B.A.Sc., Roger Bortolin, P.Eng., and James R. Hrycay, M.A.Sc., P.Eng. HRYCAY Consulting
Last Revision: 03SE2012 1967 (Late) - 1968 CORVETTE STANDARD (NON-ADJUSTABLE) STEERING COLUMN DISASSEMBLY & REPAIR INSTRUCTIONS PAPER #2 Disassembly and Repair Instructions Addressed in this Paper Degree
Machinery Health Sensors Measurement Types in Machinery Monitoring Online machinery monitoring for rotating equipment is typically divided into two categories: 1. Protection Monitoring 2. Prediction Monitoring
Procedia Engineering (29) Procedia Engineering www.elsevier.com/locate/procedia 9 th Conference of the International Sports Engineering Association (ISEA) Mountain bike wheel endurance testing and modeling
Long Stroke Shaker with Linear Ball Bearings Page 1 of 5 The ELECTRO-SEIS shaker is a long stroke, electrodynamic force generator specifically designed to be used alone or in arrays for studying dynamic
Solid Dielectric, Three Phase Reclosers Providing electronic, three phase overcurrent protection for systems rated through 38kV, 800A continuous current, 12.5kA symmetrical interrupting Reliable performance
DISTRIBUTION DISTRIBUTION STATEMENT STATEMENT D. Distribution A. Approved authorized for public to the release Department of Defense and U.S. DoD contractors only; Critical Technology; May-17 Other requests
PRECISION BELLOWS COUPLINGS Bellows couplings are used where precise rotation, high speeds, and dynamic motion must be transmitted. They exhibit zero backlash and a high level of torsional stiffness, offering
PaR Tensile Truss for Nuclear Decontamination and Decommissioning 12467 ABSTRACT Gary R. Doebler, Project Manager, PaR Systems Inc. 707 County Road E West, Shoreview, MN 55126 Remote robotics and manipulators
Induction Power Supplies 7.5kW; 135 400kHz 480V version (Integral Heat Station) User s Guide Model 7.5-135/400-3-480 SMD Control Brds Rev. D 5/08 Table of Contents 1. Specifications and features...3 2.
Ar 15 handguard rail kit 02/25/2018 Sex and ovarian cyst 02/27/2018 Emuparadise pokemon ruby 02/28/2018 -Anna y123 custom vids -Concours 2017 au cameroun 03/02/2018 Jbcp radio 03/04/2018 Adding an aftermarket
Bushing connector application in Suspension modeling Mukund Rao, Senior Engineer John Deere Turf and Utility Platform, Cary, North Carolina-USA Abstract: The Suspension Assembly modeling in utility vehicles
TECHNICAL REPORT Development of Rattle Noise Analysis Technology for Column Type Electric Power Steering Systems S. NISHIMURA S. ABE The backlash adjustment mechanism for reduction gears adopted in electric
Air Bearing Shaker for Precision Calibration of Accelerometers NOMENCLATURE Jeffrey Dosch PCB Piezotronics 3425 Walden Avenue, Depew NY DUT Device Under Test S B DUT sensitivity to magnetic field [(m/sec
PWS MK2, MOD1 USER MANUAL END USER MAINTENANCE MANUAL INTRODUCTION 23 END USER MAINTENANCE 31 INSTRUCTIONS APPENDIX A 86 -PUBLIC- FOR COMMERCIAL RELEASE RIFLE,.308 Win, MK212 (M212RC1B) RIFLE,.308 Win,
TECHNICAL PAPER Preliminary Study on Quantitative Analysis of Steering System Using Hardware-in-the-Loop (HIL) Simulator M. SEGAWA M. HIGASHI One of the objectives in developing simulation methods is to
Impact, Torsion, and Crush Tests for 477 kcmil and 795 kcmil 3M Brand Composite Conductor 3M Company Purchase Order 0000620410 NEETRAC Project Number: 02-229 October, 2002 A Center of The Georgia Institute
Journal of KONES Powertrain and Transport, Vol. 18, No. 4 2011 FINITE ELEMENT METHOD IN CAR COMPATIBILITY PHENOMENA Marcin Lisiecki Technical University of Warsaw Faculty of Power and Aeronautical Engineering
DATE: DOC NO. - REV. - GID 1 SHEET 1 OF 10 APPROVALS: DATE APPROVALS: DATE WRITTEN: Larry Jones 6/4/02 CHECKED: CHECKED: CHECKED: CHECKED: DCN NO APPROVED DATE CHECKED: 1 SCOPE DRAFT This checklist details
Evaluation of Vibrostrengthening for Fatigue Enhancement of Titanium Structural Components on Commercial Aircraft D. H. Gane 1, Y. S. Rumyantsev 2, H. T. Diep 1, L. Bakow 1 1 Boeing Commercial Aircraft
Optimising Thermoelectric Cooler Modules in a System Introduction The aim of this document is to provide better understanding of the data provided in the datasheet for thermoelectric cooler (TEC) or Peltier
APS INSTRUCTION MANUAL ELECTRO-SEIS MODEL 113 SHAKER Serial Number Systems for Generating Controlled Vibration 5731 Palmer Way, Suite A, Carlsbad, CA 92008 USA (760) 438-4848 FAX (760) 438-8845 email@example.com
ICAS2002 CONGRESS AN INTEGRATED MODULAR TEST RIG FOR LANDING GEAR FATIGUE AND STRENGTH TESTING R. Kyle Schmidt, P. Eng. Messier-Dowty Inc., Ajax, Ontario, Canada Keywords: landing gear, fatigue, strength,
Cam Motion Case Studies #1 and # 2 Problem/Opprtunity: At an operating speed of 150 to 160 rpm, Cam Motion #1 causes the cam follower to leave the cam surface unless excessive air pressure is applied to
Analysis and control of vehicle steering wheel angular vibrations T. LANDREAU - V. GILLET Auto Chassis International Chassis Engineering Department Summary : The steering wheel vibration is analyzed through
FAST COOK-OFF REACTION IMPROVEMENT OF THE 2.75-INCH ROCKET MOTOR Steven S. Kim Indian Head Division Naval Surface Warfare Center Indian Head, Maryland ABSTRACT This paper is intended to summarize the development
Saab Avitronics THE CHALLENGES OF DEVELOPING A COMINT DF AND MONITORING ANTENNA FOR THE HIGH PRESSURE ENVIRONMENT OF SUBMARINE OPERATIONS Dr Dirk Baker Saab Avitronics P O Box 8429 Centurion firstname.lastname@example.org
Servo-Hydraulic Vibration Test Equipment We build vibration test equipment that performs The tests YOU need to do To evaluate the package YOU have designed To protect the product YOU must get to market
CASED TELESCOPED SMALL ARMS SYSTEMS May 2014 NDIA Joint Armaments Conference Mr. Paul A. Shipley Mr. Benjamin T. Cole AAI Corporation Textron Systems Unmanned Systems Ms. Kori Phillips US Army ARDEC Joint
DESCRIPTION KVF Flow Control Servovalve (FCS) Issued: February 004 The KVF Flow Control Servovalve is a precision servovalve that provides an output flow rate proportional to a low power electrical input
Assemblies for Parallel Kinematics Frank Dürschmied INA reprint from Werkstatt und Betrieb Vol. No. 5, May 1999 Carl Hanser Verlag, München Assemblies for Parallel Kinematics Frank Dürschmied Joints and
Effects of Fuel Weathering on RVP, Distillation and Oxygen Content of Ethanol and iso-butanol Blends Thomas Wallner Argonne National Laboratory Jeff Wasil Bombardier Recreational Products Engine Manufacturers
Pulley Alignment There are many different factors that contribute to machine downtime when considering Sheave/Pulley, Belt and Bearing wear. The single biggest factor that can impact the reliability of
THOR Mod Kit Update May 2010 Human Injury and Applied Biomechanics Research Divisions THOR Short Term Modifications List of Changes Generated from SAE THOR Task Group Mod Kit updates for head/neck, thorax,
LEVER OPTIMIZATION FOR TORQUE STANDARD MACHINES D. Röske, K. Adolf and D. Peschel Torque laboratory Division for Mechanics and Acoustics Phys.-Techn. Bundesanstalt, D-38116 Braunschweig, Germany Abstract:
Review Paper on Design and Development of Coupling Torque Endurance Test Machine with Variable Torque and Chamber Adjustment 1. Mr. Borude S.C.(P.G. Student, JSPM s ICOER, Pune), 2.Prof. Biradar N.S.(HOD
Assembling an AR-5 Parts CheckList: Table of Contents Upper Receiver Common Parts.............................. A, A2 & A3 sights............................................. 2-3 BARREL COMPONENTS.........................................
PRISM BACKS (BASIC, ULTRA, TRUEFITT, AIR BACK AND SUPER BACK FOR KIDS) 850 REV04 REV DATE: 09/03/2014 850 REV04 REV DATE: 09/03/2014 Page 1 of 16 Table of Contents Page 3 1.0 Hardware Kit Contents Page
ME scope Application Note 29 FEA Model Updating of an Aluminum Plate NOTE: You must have a package with the VES-4500 Multi-Reference Modal Analysis and VES-8000 FEA Model Updating options enabled to reproduce
International Conference on Mechanics, Materials and Structural Engineering (ICMMSE 2016) Comparison on Hysteresis Movement in Accordance with the Frictional Coefficient and Initial Angle of Clutch Diaphragm
MX2040, DYNAMIC SIGNAL CHECKER Instruction Manual CONTENTS 1 Warnings 2 Scope of Delivery (ordering code KS04) 3 Technical Data 3.1 Handheld Control Unit 3.2 Vibration Simulator 4 Description of Test Procedure
Vickers Servo Valves SM4-30 Servovalves Flows to 113 l/min (30 USgpm) Pressures to 140 bar (2000 psi) Released 1/94 653 Introduction Vickers SM4-30 servovalves can provide system closed loop control with
Lab 9 - AC & Stepper Motors Lab 9-1 Format Lab 9 AC & Stepper Motors This lab will be conducted during your regularly scheduled lab time in a group format. There are three lab stations with a different
Last Revised: 23FE2011 INSTALLING A 1977 THRU 1982 C3 STEERING COLUMN INTO A EARLIER 1969 THRU 1976 MODEL CORVETTE Why Make This Installation Starting in 1977 and carrying thru 1982, the C3 Corvette steering
Proceedings of ASME PVP2011 2011 ASME Pressure Vessel and Piping Conference Proceedings of the ASME 2011 Pressure Vessels July 17-21, & Piping 2011, Division Baltimore, Conference Maryland PVP2011 July
NTN TECHNICAL REVIEW No.75 27 Technical Paper Development of an End-Pivot Type Mechanical Lash Adjuster Eiji MAENO Hiroshi BUNKO Katsuhisa YAMAGUCHI NTN has developed a Mechanical Lash Adjuster (MLA) that
MANUFACTURING CO. THE FIRST NAME IN QUALITY COUPLINGS Installation, Inspection, Operation & Maintenance Guide 238DB, 245DB & 245DB-3 Bolt-On Drawbar Eyes IMPORTANT Read these instructions completely before
A MARVIN GROUP COMPANY Military, Aerospace, and Manufacturing Test Solutions We Make Test Easy TM MARVINTEST.COM Marvin Test Solutions has delivered innovative, feature-rich test solutions for military,
2359 Royal Windsor Drive, Unit 25 Mississauga, Ontario L5J 4S9 t: 905-822-0090 f: 905-822-7911 monir.ca Monitoring of Shoring Pile Movement using the ShapeAccel Array Field Abstract: A ShapeAccel Array
VoltPro is a new industrial motor range to meet high efficiency needs of industry by higher level of IE4 efficiency class. Main advantage of this product is cost effective solution ensured by using standard
Control and monitoring systems for road paving machines Parts Catalogue 2017 TF-TECHNOLOGIES your preferred partner in road paving control TF Technologies is a leading manufacturer of machine control specifically
MCE-5 VCRi Engine: Topological and Free Shape Optimization of the VCR Control Rack Dr. Matthieu DUCHEMIN R&D Engineer Mechanical and Simulation Analysis October 28 th, 2010 CONTENTS 1. Overview of MCE-5
WP# 2001-4 Extracting Tire Model Parameters From Test Data Wesley D. Grimes, P.E. Eric Hunter Collision Engineering Associates, Inc ABSTRACT Computer models used to study crashes require data describing
CRASH TEST REPORT FOR PERIMETER BARRIERS AND GATES TESTED TO SD-STD-02.01, REVISION A, MARCH 2003 Anti-Ram Bollards Prepared for: RSA Protective Technologies, LLC 1573 Mimosa Court Upland, CA 91784 Test
Tri-roll External Thread Gage Operating Procedure Tri-roll Gaging Systems are available with one, two, or three frames mounted on one stand. 817-870-8888, Fax 817-870-9199 USA Page 1 of 15 1. Indicator
PROCUREMENT SPECIFICATION NUMBER PRINTED COPIES OF THIS DOCUMENT ARE CONSIDERED REFERENCE UNLESS OTHERWISE STAMPED IN RED INK. PROCUREMENT SPECIFICATION FOR CNP19 CHERRY RIVETLESS NUT PLATE Authorizing