|Table of Contents|

Test of Dynamic Characteristic Parameters for Fixed Joints Based on Mode Shape

《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

Issue:
2012年05期
Page:
779-
Research Field:
Publishing date:

Info

Title:
Test of Dynamic Characteristic Parameters for Fixed Joints Based on Mode Shape
Author(s):
WANG Zhen-huaYUAN Jun-tangHU Xiao-qiuGU Si-min
School of Mechanical Engineering,NUST,Nanjing 210094,China
Keywords:
fixed jointsdynamic characteristic parametersdynamic stiffnessdamping coefficients mode shapes
PACS:
TG156
DOI:
-
Abstract:
In order to measure the precise dynamic characteristic parameters ( including dynamic stiffness and damping coefficient) of fixed joints,the principle for separating the measured weak fixed joint from the test apparatus is proposed,and the test model of the dynamic characteristic parameters of fixed joints is established based on the single degree of freedom( DOF) system without the base motion. The test system is designed and developed based on the test model,and the natural frequency of the fixed joints is identified through the mode shape and the frequency response function curves. The test system is validitied with the mode shape and the frequency response function curves and so on. A reliable method is provided for testing the dynamic characteristic parameters of fixed joints.

References:

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Last Update: 2012-11-26