Vibration Fatigue for the Bogie frame of the Rubber Wheel AGT

고무차륜형 AGT 주행장치의 진동피로해석

  • 유형선 (인하대학교 자동화 공학과) ;
  • 윤성호 (금오공과대학교 기계공학부(자동차) ;
  • 변상윤 (인하대학교 자동화 공학과 대학) ;
  • 편수범 (인하대학교 자동화 공학과 대학원)
  • Published : 2000.09.01

Abstract

The rubber wheel-type AGT has two major kinds of bogie; one is the bogie type and the other steering one. Both are important vehicular structure to support the whole running vehicle and passenger loads. This paper deals with the static analysis for the two types of bogie frame subjected to combined external forces, as well as independent ones specified in UIC 515-4. Furthermore, the dynamic analysis is performed under vibrational loading conditions so as to compare dynamic characteristics, Numerical results by using commercial packages, I-DEAS and NASTRAN show that maximum stresses do not exceed the yield strength level of material used for both bogies. From an overall viewpoint of strength, the bogie type turns out to be superior to the steering type except for the case of a lateral loading. It is also observed that the steering type shows a characteristics of low frequency behavior during a course of searching for structurally weak areas to be stiffened. The vibrational fatigue analysis for each bogie frame depends on the loading time history conditions which is applied. Time History Central Database List in the NASTRAN package. Subsequent1y, the fatigue life of bogie type is longer than the steering type.

Keywords