Hot judder characteristics of a ventilated disc brake system are discussed. Three dimensional finite element models of the ventilated disc, pads and pistons are created, and a fully coupled thermo-mechanical analysis of the hot judder phenomenon of the disc brake system is performed using SAMCEF. The brake dynamo test is carried out according to the high speed judder test mode. The evolution of the temperature distribution on the disc surface is described, and the hot spot generation process is investigated. The simulation results such as the maximum disc temperature, BTV are compared to the data from the dynamo test, and the reliabilities of the analysis technique and simulation model presented in this paper are verified.
Key Words 와이퍼 누름압 블레이드 초탄성 : Wiper( ), Contact pressure( ), Blade( ), Hyperelastic( ) 초록 차량의 유리면에 설치된 와이퍼 시스템은 비나 눈이 올때 운전자의 시야를 확보해주는 중요한 도 : 구이다 블레이드는 유리면 위의 물체를 닦아내는 가장 중요한 도구이다 와이퍼 암의 스프링이 블레이 . . 드를 유리면 위에 누를 때 적절한 누름압이 유지되어야 최적의 성능을 얻을 수 있다 이번 연구에서는 , . 전체 와이퍼 시스템에 대한 동적 해석이 이루어졌다 상용 구조 동역학 해석 프로그램인 를 이 . SAMCEF 용하여 와이퍼 시스템의 차원 유한 요소 모델이 생성되었다 동적 상태에서 블레이드의 누름압의 분포 3 . 가 계산되었다 그리고 시뮬레이션 결과를 실험 결과와 비교를 하였다 이번 연구의 결과를 이용하여 . . 블레이드의 누름압 분포를 예측해 볼 수 있다.Abstract: The wiper system of a vehicle is important because it wipes the windshield, thereby enabling drivers to see through the windshield even under conditions of rain and snow. The blade is the key component of the wiper system because it wipes the windshield. When wiper-arm spring causes the blade to be pressed on the windshield optimum performance of wiping can be achieved when appropriate contact pressure is maintained. In this study, a dynamic analysis of the wiper system is carried out. A three-dimensional finite-element model of the wiper system is generated using SAMCEF, a commercial structural dynamic analysis program. The distribution of the contact pressure of the blade in its dynamic state is calculated. The simulation result is compared to the experiment result. Using the results of this study, the contact pressure of the blade can be estimated.Corresponding Author, park@ajou.ac.kr
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