Error analysis of modal methods for viscously damped structural systems
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A variety of methods have been proposed for solving the equations representing linear structural systems with viscous damping. Here we concentrate on methods of modal analysis wherein the system is modeled by a simpler one described in terms of its “dominant” modes. This simpler system can be solved at much smaller expense than the original one. We unify the description of the well-known methods of this type, we derive, in passing, some new methods, and we analyze the errors made in replacing the original system by its simpler relative.
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论文评审过程:Available online 21 March 2002.
论文官网地址:https://doi.org/10.1016/0096-3003(84)90036-5