3 Link Calculator v1.0 - Vector-Based with Graphical Worksheet Add-In Vehicle Specifications: Wheelbase in = Mess with these cells

Transcription

1 3 Link Calculator v1.0 - Vector-Based with Graphical Worksheet Add-In Vehicle Specifications: Wheelbase in = Mess with these cells Tire Diameter in Tire Rolling Radius in Created Sprung Mass CG 'Z' in by Weight 3,200 lb Dan Barcroft Suspension Geometry: Geometry Summary: Upper Link x y z Anti-Squat % Frame End in Roll Axis Angle 1.59 degrees ( - roll understeer, + roll oversteer) Axle End in Roll Center Height in Lower Links x y z Instant Center X-Axis in Frame End in Instant Center Z-Axis in Axle End in Pannhard Bar x y z Frame End in Axle End in Upper Link Lower Links Lower Links IC Trace Lower Column C Rear Tire Upper Link Lower Links IC Trace Upper IC Trace Lower Anti-Squat Line CG Line 100% AS Line Roll Axis Pannhard Bar

2 3 Link Calculator v1.0 - Vector-Based with Graphical Worksheet Add-In = Referenced to other cell Vehicle Specifications: Wheelbase in Sprung Mass CG 'X' n/a in Rear Axle Ratio 4.11 Rear Track Width n/a in Sprung Mass CG 'Y' n/a in Axle Shear Strength n/a psi Tire Diameter in Sprung Mass CG 'Z' in Axle Shaft Min. Dia. n/a in Created Tire Rolling Radius in Weight 3,200 lb by Tire Width n/a in Dan Barcroft Suspension Geometry: Upper Link x y z Lower Links x y z Frame End in Frame End in Axle End in Axle End in Vector in Vector in Link Length in Length in Unit Vector Unit Vector Intercept Parallel in Intercept Parallel in Forces lb Roll Point Parallel N/A in Vertical Slope in/in Forces lb Horizontal Slope in/in Vertical Slope in/in Horizontal Slope in/in Pannhard Bar x y z Frame End in Axle End in Vector in Link Length in Unit Vector Roll Point in Forces lb Vertical Slope #DIV/0! in/in Horizontal Slope #DIV/0! in/in Geometry Summary: Anti-Squat % Roll Axis Slope in/in ("-" = roll understeer; "+" = roll oversteer) Roll Axis Angle 1.59 degrees ("-" = roll understeer; "+" = roll oversteer) Roll Center Height in Instant Center X-Axis in Instant Center Z-Axis in

3 3 Link Calculator v1.0 - Vector-Based with G Material Selection: Upper Link Outside Diameter in Wall Thickness in Specs-> 29,700,000 Material Used Steel 4130T 110,000 Rod End Rated Load 20,000 lb Moment of Inertia Area Pyield Pbuckling Pbending Link Length Link Weight Link Force F.S. Yield F.S. Buckling FS Bending F.S. Rod End Material Specifications: in^ in^2 107,992 lb 912,464 lb 14,617 lb 8.00 in 2.23 lb 4,055 lb ("+" because link is in tension) (This is your link stretching) (This is your link buckling under braking 9.14 (This calculation is somewhat irrelevan 4.93 (This is your rod end breaking) Elastic Modulus Yield Density (psi) Strength (Lbs/in^3) Alum 2024-T6 10,500,000 50, Alum 6061-T6 10,000,000 39, Alum 7075-T6 10,400,000 73, Steel ,000,000 50, Steel 4130N 29,700,000 63, Steel 4130T 29,700, , Steel 4340N 29,700, , Steel 4340T 29,700, , Titanium 6Al-4V 16,500, , Note: All materials must be in alphabetical order

4 Graphical Worksheet Add-In Lower Links Outside Diameter in Modulus of Elasticity (psi) Wall Thickness in Specs-> Yield Strength (psi) Material Used Steel 4130T Density (lb/in^3) Rod End Rated Load 55,000 lb Moment of Inertia in^4 Area Pyield Pbuckling Pbending in^2 57,227 lb 112,804 lb 4,065 lb Link Length in Link Weight 2.66 lb Link Force -3,628 lb ("-" because link is in F.S. Yield (This is your link compr g) F.S. Buckling (This is your link buckli nt for an UPPER link) F.S. Bending 2.54 (This is your link bendin F.S. Rod End (This is your rod end br Cold Drawn Normalized Water Quenched and Tempered Normalized Oil Quenched & Tempered 6% Aluminum, 4% Vanadium

5 = Referenced to other cell 29,700,000 Modulus of Elasticity (psi) 110,000 Yield Strength (psi) Density (lb/in^3) n compression) ressing) ng under acceleration) ng w/ 1/2 the vehicle weight on it) reaking)

6 3 Link Calculator v1.0 - Vector-Based with Graphical W Upper Link Lower Links Lower Links IC Trace Lower Column C Rear Tire Upper Link Lower Links IC Trace Upper IC Trace Lower Anti-Squat Line CG Line 100% AS Line Roll Axis Pannhard Bar Side View

7 Front Tire Rear Tire IC Trace Upper angle x z x z x z IC Trace Lower x z Anti-Squat Line x z CG Line E x z % AS Line x z Roll Axis x z E-015 0

8 Worksheet Add-In = Referenced to other cell Top View

9 Offset Up Upper Link x y y' Lower Links x y IC Trace Lower x y ,000, Pannhard Bar x y y'

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12 3 Link Calculator v1.0 - Vector-Based with Graphical Worksheet Revision History Version Changes / Enhancements 1.0a 1.0b Fixed some cells that were not linked to the Main page. Updated the Material page for less clutter.

13 Add-In Date

14 = Referenced to other cell