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Push Rod Suspension Geometry Question Camber Change Wheels

  1. Jan 6, 2015 #1

    I've spent ages trying to solve what seems to be a pretty simple geometrical problem and I was wondering if anyone could help me solve it/give me some tips. I am trying to model how the suspension of a car behaves as a result of a displacement of the wheels.

    What the attachment shows is a double wishbone suspension connected to a fixed chassis - similar to these sorts of mechanics: http://rezachu.blog.com/files/2012/12/KugelPushrod.jpghttp://rezachu.blog.com/files/2012/12/KugelPushrod.jpghttp://poisson.me.dal.ca/~dp_10_14/oldarchitecture/images/bc.bmp

    The suspension arms rotate about the fixed pivots on the chassis (at points A and E) and the push rod goes on the compress a spring/damper.

    So my question is: for an anti clockwise change in angle (delta) in the horizontal member, AC, how will this deflection affect the position of D, G and H - all in terms of the given geometry and angle, delta.

    Apologies if I have not phrased my question clearly.
    Any advice would be appreciated.

    Attached Files:

  2. jcsd
  3. Jan 6, 2015 #2
    FYI, the 31.28 & 41.28 angles are inaccurate.
  4. Jan 6, 2015 #3

    Ranger Mike

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    Science Advisor
    Gold Member

    you will build camber in Bump..it will be more camber as you have two non equal length A-arms...suggest you read Race Car Suspension class in Automotive forum
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