摘要
复杂结构动态分析的可信度取决于相应的动态计算模型。由于计算模型建模需要输入的参数中,某些局部参数较难确定。为寻求较为合理的局部参数,利用向量空间余弦因子定义了计算模型和试验模型的整体相关度指标VM。由此来修改计算模型局部参数。算例表明该方法是有效的。
The reliability of dynamic analysis of complex structure depends on the corresponding computational model. However, in parameter inputting for modeling, it is difficult to confirm some part parameters. In order to seek more rational part parameters, the idea of angle between the space vectors is used for study on the method employing relativity index VM^- between the computational model and the experimental model so as to modify or calculate the part parameters of the model. An example is given to illustrate the validity of the method.
出处
《机械制造》
2005年第11期25-27,共3页
Machinery
基金
中国机械工业联合会资助项目(编号:742920)
关键词
计算模型
试验模型
局部参数
整体相关度指标
Computational Model Experimental Model Part Parameters Relativity Index
