축약된 유한요소 모델과 실험적 모우드 해석을 이용한 기계구조물의 연결부 동특성 규명Identification of joint dynamics of mechanical structures using condensed F.E.M. model and experimental modal analysis

Cited 0 time in webofscience Cited 0 time in scopus
  • Hit : 378
  • Download : 0
본 연구에서는 유한요소모델과 실험적 모우드 해석 방법을 조합하여 완전한 모우드를 측정하지 못한 상태에서도 구조물 연결부의 강성계수와 감쇠계수를 구하는 방법론을 검토하고 실제 계에 적용하여 보고자 한다. Dynamic properties such as stiffness and damping of mechanical joints are essential for the accurate prediction of the dynamic behaviors of the system and subsequent improvement of the design. So far several techniques, analytical, experimental, or both have been developed. A technique using condensed F.E.M. model and Experimental Modal Analysis is presented to identify the joint structural parameters. First, modal parameters of structure are measured by certain complex frequency obtained from experiment to match with the order of the Experimental Modal Analysis model. Finally by equating the modal parameters obtained from experiment with those of the condensed system, the unknown joint structural parameters can be identified. A simulation study is conducted to investigate the accuracy of technique. The experiments are performed with ball bearings in a rotor bearing system.
Publisher
대한기계학회
Issue Date
1988-01
Language
Korean
Citation

대한기계학회논문집 A, v.12, no.3, pp.426 - 439

ISSN
1226-4873
URI
http://hdl.handle.net/10203/66890
Appears in Collection
ME-Journal Papers(저널논문)
Files in This Item
There are no files associated with this item.

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0