## Side View Geometry

1. Castor- 6 degree positive

Mechanical trail- 15 mm

KPI- 10 degree

Spindle Length- 90 mm

2. Restoring Moment- 50 Nm

3. Suggested Change to change sign of scrub radius

upper knuckle ball joint -675 to -610 (Y direction)

lower knuckle ball joint - 100 to 200 (Z direction)

### King pin optimization Kartik Suthar · 2020-03-30 04:39:28

After hardpoint tuning, less amount of camber gain observed, and less amount of toe-change reduced.   We can\'t control all parameters independently.. caster, caster arm length and steer axis offset(longitudinal) are dependend on each-other. and King pin inclin Read more

### post processing Kartik Suthar · 2019-10-16 16:11:29

All screenshots are attached in ZIP file.... Read more

### Damping co-efficient Kartik Suthar · 2019-09-24 06:43:17

I) Front sprung mass critical damping 5947.299 Kg/sec     Rear sprung mass critical damping 6526.046 Kg/sec II) Front unsprung mass critical damping 6971.37 Kg/sec      Rear unsprung mass critical damping 5796.55 Kg/sec III) Front sprung mas Read more

### Frequency calculation Kartik Suthar · 2019-09-17 13:07:13

1) I) Rear sprung mass frequency based on wheel base and speed will be 1.358 Hz, time lag because of wheel base and speed is 0.10 sec. II) Front sprung mass frequency at design condition 1.131 Hz III) Front Spring rate 23.853 N/mm IV) Rear Spring rate 27.711 N/mm V) Read more

### Calculation of Time lag using frequency Kartik Suthar · 2019-09-10 16:25:34

1. Wheel rate differs from spring rate because of motion ratio. motion ration generates because of suspension geometry like arm length and suspension attachment point etc. And Wheel rate = Spring rate * (MR)square. 2. Wheel rate measures by wheel center line consider Read more

### Procedure to find Roll center Height Kartik Suthar · 2019-07-21 14:38:00

1. Instant Center location Y= 950 mm (negative)                                      Z= 235 mm   2. Roll center Height = 190 mm (below ground)   zip file attach Read more