Optimization design method for throttle hole area of telescopic shock absorber

Throttle holes area of telescopic shock absorber influence the ride comfort, driving harshness and the other parameters design. For the non-linearity relation of the design area of throttle holes with the design velocity, there is no any accurate and reliable method for throttle hole area design of telescopic shock absorber. In this paper, analyzed the various damping factors affecting design, it was established that the mathematics model of throttle hole area by single velocity value. Studied the method of optimization design, the target function of curve fitting optimization design for throttle hole was constructed. A practical design example of throttle holes area with this method is given, and the designed result was compared with that by single velocity, and shown on the blueprint of telescopic shock absorber manufactory. The performance test was conducted for the telescopic shock absorber developed with the new design methods in laboratory, and the test results were compared with the design target value. The experiment results show that the design method of curve fitting optimization for the area of throttle hole is correct, the designed values is reliable.