摘要
通过大型变断面桁架模型的模态试验,阐述了试验原理、方法及实施步骤,研究了结构模型的试验模态参数持征,对理论计算模态结果与试验模态结果作了比较分析。
This paper describes the principles,methods and procedures taken in the tests of a large-scale truss model with varying cross-section. The behaviour of the model parameters of the structural model is analysed and illustrated. To validate the method adopted,the results of the theoretical calculations are compared with those of the tests.
关键词
桁架
结构动力学
模态分析
truss
structural dynamics
model analysis
