A Study of the Linear Analysis of an Equivalently Reduced System from the Original Torsional System

회전 시스템의 수학적 모델과 간소화된 시스템의 선형 특성 연구

  • Ahn, Min-Ju (Korea Polytechnic VII) ;
  • Yoon, Jong-Yun (Department of Mechanical Engineering, Ohio State University) ;
  • Qi, Zhang (Graduate School of Mechanical and Aerospace Engineering, Gyeongsang National University) ;
  • Ahn, In-Hyo (Graduate School of Mechanical and Aerospace Engineering, Gyeongsang National University) ;
  • Lyu, Sung-Ki (School of Mechanical & Aerospace Engineering, Gyeongsang National University)
  • 안민주 (한국폴리텍 VII대학) ;
  • 윤종윤 (오하이오주립대학교 기계공학과) ;
  • 장기 (경상대학교 대학원 기계항공공학부) ;
  • 안인효 (경상대학교 대학원 기계항공공학부) ;
  • 류성기 (경상대학교 기계항공공학부)
  • Received : 2009.11.18
  • Accepted : 2010.05.24
  • Published : 2010.06.30


In order to analyze the vibro-impacts in the torsional system, several clearance types of nonlinearities should be included with the analytical or numerical method. These kinds of nonlinear factors can cause the errors while the system is calculated specifically with the numerical method, also it might take too long to get right answers with the every nonlinearity in the original system. Therefore, there are several methods developed for the sake of overcoming the deficiency of the analysis with the original system and saving the calculating time. The original system can be reduced by keeping the system characteristics such as from 14 to 6 DOF. Especially, since the torque flow in the torsional system is connected with the specific gear ratios, the original system can be transferred into the simpler system corresponding to each gear ratio rather than the original system, which can also show the same system characteristics such as the natural frequencies and the mode shapes. By using the reduced system, the calculating time can be saved and the redundant nonlinear effects for the system analysis can be ignored without any numerical errors.


Supported by : 한국산업기술진흥원


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