# Modeling Half-Car Suspension in Simulink/Simscape?

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Agustin Bernier-Vega am 9 Sep. 2020
Kommentiert: arvind j am 7 Apr. 2021
How would I go about building the automobile below as a Simscape or Simulink diagram? The system should be simulated with the below numerical values, while F1 and F2 are to be chosen suitably to represent the road conditions.
I understand more or less how to model the individual spring-mass-damper systems in Simscape (simscape is easier for me to understand than Simulink), but the part I don't know how to implement is mostly the car body itself (which I'm assuming is a rotational mass) with its given lengths (l1 and l2) and the given mass moment of inertia.
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Brandon Ericsson am 3 Dez. 2020
Hello, the answer to your query is important. It is interesting about automobile c2 and k2, given M. Here is something to consider:
m1/m2 * k2/c2, M.
(where h approaches 1.32, where:
i=5, or i=3
hypotenuse).
There are reasons the front/Frictional force is adjusted for h and z. If
z dot, then front integrator (the receiver of the front suspension brakes),
has a greater chance to translate i).
Have a nice day, and it is nice to meet you.
Brandon M. Ericsson

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### Antworten (2)

Juan Sagarduy am 23 Okt. 2020
Hello Agustin
I think that you’ll find inspiration in the Lever block in the Simscape Foundation Library, possibly by complementing the equations in the source code.
Good luck Juan (MathWorks)
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Juan Sagarduy am 3 Dez. 2020
Hi there
I managed to put together the model you describe graphically. It is easy to build with Foundation Library components. Let me know if this is what you had in mind.
Regards / Juan
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arvind j am 7 Apr. 2021
Hi, can you show the code to modify the lever through which we can add front and rear sprung masses and find pitch angle.
Thank you

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