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고압 밀폐 가스 스프링에서의 열전달 효과 수치해석 및 실험적 검증 / 한인식 ; 최교준 ; 김재용 ; 이윤복 1
Abstract 1
1. 서론 1
2. 가스 스프링의 압력 해석 2
2.1. 이상기체 방정식과 BWR 방정식 2
2.2. 스프링 장치에서의 열전달 방정식 3
3. 현수장치 가스 스프링 압력 해석 3
3.1. 현수장치 가스 스프링 3
3.2. 기구 분석 4
3.3. 온도 시정수의 실험적 결정 5
4. 수치해석 및 실험결과 5
4.1. 수치해석 결과 5
4.2. 실험방법 및 결과 7
5. 결론 9
References 9
Appendix 9
Recently the use of gas spring in the combat and commercial vehicle's suspension is increasing. Because of
its nonlinear characteristics, the gas spring can support wide range of dynamic loads and gives good ride quality. In
design of gas spring, isothermal and adiabatic processes are applied generally, but those processes could not produce
heat transfer effect in the simulation. So in this study, heat transfer differential equation and BWR/Ideal state equation
are used to calculate the pressure of gas spring which is changing with time. The numerical analysis showed that the
pressure of gas spring forms a hysteresis loop in the both of the state equations. But the peak pressure value of BWR
equation over 0.1Hz frequency are higher than that of adiabatic process. And the test results showed that the differences
between test results and ideal gas equation are smaller than those of BWR equation, so the ideal equation is more
accurate than BWR equation in this case.
Recently the use of gas spring in the combat and commercial vehicle's suspension is increasing. Because of
its nonlinear characteristics, the gas spring can support wide range of dynamic loads and gives good ride quality. In
design of gas spring, isothermal and adiabatic processes are applied generally, but those processes could not produce
heat transfer effect in the simulation. So in this study, heat transfer differential equation and BWR/Ideal state equation
are used to calculate the pressure of gas spring which is changing with time. The numerical analysis showed that the
pressure of gas spring forms a hysteresis loop in the both of the state equations. But the peak pressure value of BWR
equation over 0.1Hz frequency are higher than that of adiabatic process. And the test results showed that the differences
between test results and ideal gas equation are smaller than those of BWR equation, so the ideal equation is more
accurate than BWR equation in this case.*표시는 필수 입력사항입니다.
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