In this study, a finite element analysis was used to analyze the stress state and vibration characteristics generated by continuous contact between wheels and rails when driving urban railway vehicles. The rails applied to the analysis were divided into straight and curved shapes, and three-dimensional modeling was performed to analyze the changes in structural characteristics of wheels and rails when driving on straight and curved rails. As a result of the analysis, the stress characteristics were up to 6.5 MPa on a straight rail and 9.81 MPa on a curved rail, and it is believed that this increase in stress will increase noise due to an increase in friction at the interface. The vibration characteristics of the wheels and rails showed similar behavior from the 3rd mode to the 9th mode of the rail to the intrinsic vibration characteristics from the 4th mode to the 6th mode of the wheel.
목차
ABSTRACT 1. 서론 2. 유한요소해석 전처리 2.1 3D 모델링 2.2 Mesh 2.3 하중 및 경계조건 3. 유한요소해석 수행 3.1 응력해석 3.2 응력해석 결과 3.3 진동해석 3.4 진동해석 결과 4. 결론 References
키워드
도시철도차량궤도등가응력진동특성유한요소해석Uraban RailEquivalent stressVibration characteristicFinite element analysis
저자
김현식 [ Hyun-Sik Kim | Member, Division of Automobile Engineerng, Vision College of Jeonju ]
Corresponding Author