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A remedy for a family of dissipative, non-iterative structure-dependent integration methods

  • Chang, Shuenn-Yih (Department of Civil Engineering, National Taipei University of Technology) ;
  • Wu, Tsui-Huang (Department of Civil Engineering, National Taipei University of Technology)
  • Received : 2016.08.22
  • Accepted : 2018.01.23
  • Published : 2018.01.25

Abstract

A family of the structure-dependent methods seems very promising for time integration since it can simultaneously have desired numerical properties, such as unconditional stability, second-order accuracy, explicit formulation and numerical dissipation. However, an unusual overshoot, which is essentially different from that found by Goudreau and Taylor in the transient response, has been experienced in the steady-state response of a high frequency mode. The root cause of this unusual overshoot is analytically explored and then a remedy is successfully developed to eliminate it. As a result, an improved formulation of this family method can be achieved.

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