【摘要】 以一个惯导系统的螺栓连接结构为对象,建立了结构有限元模型,以模态试验数据为依据修改有限元模型,对模型中螺栓连接的建模方法进行了修改,获得了理想的结果,为后续的工程应用奠定了基础。更多还原

【Abstract】 Aimed at a bolted joint structure of inertial navigation system,a finite element model is built firstly,then,according to the modal test data,the finite element model is modified,that is,the modeling method for the bolted joint is adjusted.The example shows that the model updating method is efficient and accurate,and it lays a foundation for further engineering application.更多还原