Modal reaction method for modal participation factors in support motion problems | Zendy

Chen J. T. | Zendy; Hong H.K. | Zendy; Yeh C. S. | Zendy

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Modal reaction method for modal participation factors in support motion problems

Author(s) -

Chen J. T.,

Hong H.K.,

Yeh C. S.

Publication year - 1995

Publication title -

communications in numerical methods in engineering

Language(s) - English

Resource type - Journals

eISSN - 1099-0887

pISSN - 1069-8299

DOI - 10.1002/cnm.1640110602

Subject(s) - modal , modal testing , quasistatic process , modal analysis , decomposition , motion (physics) , modal analysis using fem , computer science , mathematics , structural engineering , engineering , physics , artificial intelligence , finite element method , materials science , chemistry , organic chemistry , quantum mechanics , polymer chemistry

An efficient method, called the modal reaction method, for calculating the modal participation factors for support motion problems is proposed. It is found that modal reactions at supports proportionally describe the magnitudes of the modal participation factors. Thus, the modal participation factor for support motion problems can be calculated very efficiently, saving more than 99 per cent, for the given example with 640 degreees of freedom, of the CPU time compared with using the popular quasistatic decomposition method.

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