Variable | Image | Depends on | Suggested/found values | Optimal values |
|---|---|---|---|---|
Top A-arm angle  and length |  | length depends on how it’s mounted to chassis, travel needed | check grabcad msxv for general guideline | |
Bottom A-arm angle |  | check grabcad msxv for general guideline | ||
Distance between A-arms at steering rod |   | travel | ||
Angle between A-arms |  | Instant center distance and height, roll center height |   (same source as roll centre height) | |
Instant center distance and height |  | Then we selected the horizontal distance between roll center and instantaneous center as 53.22”.The position of instantaneous center which is more near to infinity is best suitable for a stable suspension design (same source as roll center height) | ||
Roll center height |  |   -Generally for the stability of vehicle it is required that the height of roll center at front is around 10.12” and at rear is9.44” for a ground clearance of 12” front and 11” rear. This roll center positioning provides better transmission of forces acting on the vehicle along the roll axis which yields good stability of vehicle and increased effect of roll/yaw damping - DESIGN AND ANALYSIS OF SUSPENSION SYSTEM FOR AN ALL TERRAIN VEHICLE (ijser.org) | ||
Angle of shock |  |
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