디젤 트럭의 공회전이음 개선에 관한 연구

다국어 초록 (Multilingual Abstract)

The idle rattle phenomena is investigated for a truck with a diesel engine and manual transmission equipped. A torsional vibration model including engine, clutch and transmission is constructed and the torsional vibration response is simulated. The results show good agreement with idle rattle specification. The evaluation index for idle rattle is newly proposed, which is expressed in terms of impact forces between colliding gears within the transmission. A simplified model is utilized in order to determine clutch characteristics. The effects of system parameter variation on idle rattle are also examined, so it is clarified that clutch characteristics, flywheel inertia, shaft inertia, gear backlash and c1rag torque are influential on reduction of rattle. The torsional characteristics of clutch are revised and about 7dB reduction can be achieved.

목차 (Table of Contents)

• Ⅰ. 서론 1
• Ⅱ. 모델링 2
• 2.1 엔진토크(TE) 3
• 2.2 클러치 토크(Tc) 3
• 2.3 기어충격력(FG) 4
• Ⅲ. 실뮬레이션 4
• Ⅳ. 파라미커 영향 분석 5
• 4.1 이음 평가지수 5
• 4.2 파라미터 영향 분석 6
• 4.2.1 클러치 특성 6
• 1) 스프링상수(k1)와 히스테리시스(H1) 변경 8
• 2) 클러치 작동영역(ψ1p,ψ1n) 변경 8
• 3) 세트토크(S1) 변경 9
• 4.2.2 기어 백래쉬(BL) 9
• 4.2.3 드래그토크(DDP,DCT,DMG) 10
• 4.2.4 플라이휠 질량관성모멘트(IFW) 11
• 4.2.5 기어의 질량 관성모멘트(IDP,ICT,IMG) 11
• Ⅴ. 개선안 도출 12
• Ⅵ. 결론 13