Parameter identification and test study of vane damp for tracked vehicle

摘要

A new hydraulic model is established based on the structure analysis of the vane damp. Based on damping force and velocity input test data, the parameters about the hydraulic model are identified by least squares fitting method. Every parameter has its own physics meaning not only the math way, which indicates the influence of the hole and gap. The method can reduce the vane damp process and fix error, which can give damping characteristics clearly. In the different temperature, comparison of the test data and results of calculation with the fitting parameters shows that the parameters are correct and the method is valid. From the parameters calculation and test result, vane damp design and character analysis can be supported.