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An Inverse Mode Problem for the Rod on Elastic Foundation

机译:弹性基础上杆的逆模式问题

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摘要

Consider the rod on elastic foundation. Its discrete model is the simply connected spring-mass system with partial mass connected to the ground. The inverse mode problem of constructing the physical elements of the system from two eigenpairs, the spring stiffness of the system is considered. The necessary and sufficient conditions for constructing a physical realizable system with positive mass and stiffness elements are established. If these conditions are satisfied, the rod on the elastic foundation may be constructed uniquely. The numerical methods and examples are given finally.
机译:考虑弹性基础上的杆。其离散模型是简单的春全的弹簧质量系统,部分质量连接到地面。从两个特征方构造系统的物理元素的逆模式问题,考虑了系统的弹簧刚度。建立具有正质量和刚度元件的物理可实现系统的必要和充分条件。如果满足这些条件,则弹性基础上的杆可以唯一地构造。最终给出了数值方法和实施例。

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