A piston with adjustable resistance?

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The discussion focuses on finding a device that generates no movement but allows for a shaft to be pushed or pulled while providing adjustable resistance to counter external forces. The user is specifically looking for a solution that resembles an actuator but functions solely to resist motion rather than generate it. Suggestions include considering adjustable rate shock absorbers commonly used in vehicle suspension systems. The goal is to identify devices that meet these unique specifications. The inquiry seeks practical recommendations for such a device.
nomisme
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Dear all,

I have recently come across a project that requires me to find a device that does the following,

A device that:

1)generates "0" movement
2)have a shaft that can be pulled or pushed over a distance
3)I can induce a variable resistance force to the shaft (to counter external motion)

Overall, it should looks like an actuator but the function is different- it can only resist motion and cannot generate motion on its own.

Have you heard of any devices similar?
 
Engineering news on Phys.org
An adjustable rate shock absorber as used for vehicle suspension.
 
Baluncore said:
An adjustable rate shock absorber as used for vehicle suspension.

thanks man
 

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