Controller, test system and test method for arm frame vibration performance test

Abstract

The invention discloses a controller, a test system and a test method for an arm frame vibration performance test, wherein the controller (100) used for testing arm frame vibration performances comprises an excitation control unit (10), a signal collecting unit (20) and a vibration performance analyzing unit (30), wherein the excitation control unit (10) is used for sending an excitation signal to execute excitation, the signal collecting unit (20) is used for collecting the excitation signal sent by the excitation control unit (10) and an arm frame vibration signal acquired when the arm frame is excited by the excitation signal and correspondingly storing the excitation signal and the vibration signal into a group of vibration data, and the vibration performance analyzing unit (30) is used for invoking the vibration data stored by the signal collecting unit (20) to carry out operational analysis so as to acquire the vibration performances of the arm frame. According to the controller, the test system and the test method for the arm frame vibration performance test, the excitation signal and the vibration signal sever respectively as the excitation signal and the vibration signal of a vibration system of the arm frame, the operational analysis is carried out on the excitation signal and the vibration signal, and accordingly various vibration performances of the arm frame are acquired.

Description

technical field [0001] The invention relates to the field of engineering machinery, in particular to a controller for testing the vibration characteristics of a jib, a system for testing the vibration characteristics of a jib, and a method for testing the vibration characteristics of a jib. Background technique [0002] Construction machinery with a boom (such as a concrete pump truck) has a large extension of the boom when it is working. It is a cantilever beam structure in mechanics, and the force is more complicated and it is prone to vibration. The vibration of the concrete pump truck boom is one of the important factors affecting the performance and construction quality of the pump truck. If the vibration is too large, the hose at the end of the boom frame cannot be positioned accurately, and the dynamic stress generated at the same time directly affects the fatigue life of the pump truck. With the development of high-pressure, large-displacement pumping and ultra-long ...

AI Technical Summary

Problems solved by technology

In the prior art, there is no method and system for systematically analyzing and testing the vibration of the boom system, but the vibration test of the boom system and the analysis of the collected experimental data can accurately obtain the vibration characteristics of the boom system. It is a necessary prerequisite for boom vibration control and system dynamic parameter optimization

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