Method for obtaining circumferential load distribution of friction plate tooth part through variable-contact-rigidity testing

Abstract

The invention belongs to the technical field of testing simulation, and provides a method for obtaining circumferential load distribution of a friction plate tooth part through variable-contact-rigidity testing. The method aims at carrying out testing on static stress on the friction element tooth part, accordingly achieving mutual verification of two distribution rule testing results, and providing theoretical supports for dynamic strength simulation and design of a friction element. According to the method, the mass data synchronous collecting problem difficult to solve can be solved, middle testing links and a data processing link are omitted, the distribution characteristics of circumferential loads of the friction plate tooth part can be directly obtained through a variable-contact-rigidity curve obtained through the testing, and the accuracy of the testing results is improved; the testing method is simple, practical and high in testing result accuracy.

Description

technical field [0001] The invention belongs to the technical field of test simulation, and in particular relates to a method for obtaining the circumferential load distribution of a tooth part of a friction plate through a variable contact stiffness test. Background technique [0002] As an important part of special vehicles, the transmission system's performance directly affects the mobility (such as braking, passability, acceleration), reliability and service life of the vehicle. The failure of the transmission system will directly lead to the loss of use of special vehicles. [0003] The clutch friction pair is one of the important basic components of the transmission system. In actual engineering, during the power transmission of the friction pair, damages such as pitting, cracks and even fractures often occur on the meshing teeth. The distribution characteristics of the circumferential load and its variation law. To obtain the above characteristic parameters, the cir...

AI Technical Summary

Problems solved by technology

However, if the direct test method of the circumferential load of the teeth (such as pasting 108 strain gauges on all the teeth of the 522 friction plate), is not only limited by the conditions of the test equipment (it is impossible to find so many channels of acquisition equipment), but also in each The tooth meshing position and the contact force generated are different, and the obtained load cannot fully reflect the actual meshing loading process of the teeth, and the accurate stress distribution characteristic curve cannot be obtained.

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