变排量柴油机曲轴系统扭振特性研究

兵工学报 ›› 2011, Vol. 32 ›› Issue (9): 1047-1052.

变排量柴油机曲轴系统扭振特性研究

杨守平，张付军，赵长禄，黄英，章振宇，左哲

（北京理工大学机械与车辆学院，北京 100081）

收稿日期:2010-02-04 修回日期:2010-02-04 上线日期:2014-05-04
通讯作者: 杨守平 E-mail:Robbie@bit.edu.cn
作者简介:杨守平(1982—)，男，博士研究生
基金资助:
国家自然科学基金资助项目（50975026）；国家部委“十一五”基础产品研究项目（D2220062905）

Study on Torsional Vibration Characteristics of Crankshaft in Variable Displacement Diesel Engine

YANG Shou-ping, ZHANG Fu-jun, ZHAO Chang-lu, HUANG Ying, ZHANG Zhen-yu, ZUO Zhe

(School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China)

Received:2010-02-04 Revised:2010-02-04 Online:2014-05-04
Contact: YANG Shou-ping E-mail:Robbie@bit.edu.cn

摘要/Abstract

摘要： 为了研究变排量柴油机曲轴系统扭振特性，探索扭振性能较好的变排量方案，采用GT-SUITE软件建立某Ⅴ型六缸柴油机曲轴系统协同仿真模型，并通过试验数据校核模型。开展10%~50%负荷下不同停缸方案的曲轴扭振仿真研究。结果表明：停缸后曲轴系统扭转角位移显著增加，角位移以低阶滚振为主；相同停缸缸号的停气门方案较断油方案幅值大，扭振附加应力略大于后者；扭振性能最好的变排量方案是发火均匀的断油方案。

关键词: 动力机械工程, 变排量, 协同仿真, 停缸, 扭振特性

Abstract: In order to investigate the torsional vibration characteristics of the variable displacement diesel engine and explore the best variable displacement schemes, a co-simulation model of a V6 diesel engine crankshaft system is built by using GT-SUITE software and validated by experiments. Various displacement schemes under 10%~50% of engine load are simulated respectively. The results indicate that the torsional vibration angle displacement amplitude of crankshaft under cylinder deactivation increases greatly, which mainly consists of low order rolling vibrations; the fuel cut-off scheme is better than the valve cut-off scheme with the same cylinder deactivation numbers, while the additional torsional vibration stress is slightly larger than the latter’s. The fuel cut-off scheme with uniform firing interval has the best torsional vibrational performance.

Key words: power machinery engineering, variable displacement, co-simulation, cylinder deactivation, torsion vibration characteristics

中图分类号:

U461.1

杨守平，张付军，赵长禄，黄英，章振宇，左哲. 变排量柴油机曲轴系统扭振特性研究[J]. 兵工学报, 2011, 32(9): 1047-1052.

YANG Shou-ping, ZHANG Fu-jun, ZHAO Chang-lu, HUANG Ying, ZHANG Zhen-yu, ZUO Zhe. Study on Torsional Vibration Characteristics of Crankshaft in Variable Displacement Diesel Engine[J]. Acta Armamentarii, 2011, 32(9): 1047-1052.

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