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Suspension Mechanisms

Suspension Mechanisms. Group B Tedros Ghebretnsae Xinyan Li Zhen Yu Tang Ankit Panwar. Basic Concept of Suspension. Provide independent shock absorption to individual wheels. Deal with humps in road surface, enhancing ride comfort.

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Suspension Mechanisms

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  1. Suspension Mechanisms Group B Tedros Ghebretnsae Xinyan Li Zhen Yu Tang Ankit Panwar

  2. Basic Concept of Suspension • Provide independent shock absorption to individual wheels. • Deal with humps in road surface, enhancing ride comfort. • Most suspensions are either fourbar linkages or slider cranks.

  3. Camber Angle Two types of camber • Positive Camber • Negative Camber

  4. Double Wishbone Suspension • Parallelogram system • The wheel spindles are supported by an upper and lower 'A' shaped arm • Equal & unequal length

  5. Unequal Length Double Wishbone Suspension

  6. Types of motion of the wheel • Spindles to travel vertically up and down during bump and rebound. • Side-to-side motion caused due to the geometry of the wishbones known as scrub • Toe angle (steer angle). • The camber angle, or lean angle.

  7. Motion of Body Roll • Animation of the suspension during the body roll • Unequal length double wishbone type.

  8. Vertical Displacement • Animation showing the up and down movement of the wheel.

  9. Importance of Negative Camber Gain • Upper control arm is shorter than the lower one • As the wheel travels up it tips in, gaining negative camber • Allows the tire to generate the maximum possible cornering force • The length of the arms and the angles can be adjusted that means that they are not fixed

  10. MacPherson Strut Suspension • The strut directly connects the steering knuckle to the chassis and acts as a link in the suspension • The steering link physically twists the strut and shock absorber and turns the wheel.

  11. Steering Mechanism of Macpherson Strut Type

  12. Trailing-arm suspension • Pairs of these become twin-trailing-arm allow the rear to swing up and down. • The two links are pivoted to the frame. • Link1 is the ground • Link3 is attached to the wheel assembly.

  13. Application of IC in Design

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