Model for optimization design of throttle holes area of telescope-damper

The throttle holes area of telescope damper influence the vehicle ride comfort, driving harshness and other parameters design. As the no-linearity relation between the design area of throttle holes and design velocity, there is no any accurate and reliable method for throttle holes area design. The paper analyzed various damping components which impact the design and established the mathematics model of throttle holes area based on single velocity, studied the optimum design methods and established the target function of curve fitting optimization for throttle holes area. A practical design example with the new method was given, and compared the design result with that by single velocity and that of the blueprint of factory. The performance test was conducted in laboratory, and compared the test results with the design target values. The experiment results show that the curve fitting optimization design method for the area of throttle holes is correct, the designed value is reliable, and it has important reference value for valves parameters design of telescope damper.