内燃机配气机构传动链脱节概率

doi:10.12068/j.issn.1005-3026.2016.10.014

东北大学学报:自然科学版 ›› 2016, Vol. 37 ›› Issue (10): 1432-1436.DOI: 10.12068/j.issn.1005-3026.2016.10.014

内燃机配气机构传动链脱节概率

杨周，杨辉达，张义民

(东北大学机械工程与自动化学院，辽宁沈阳110819)

收稿日期:2015-07-07 修回日期:2015-07-07 出版日期:2016-10-15 发布日期:2016-10-14
通讯作者: 杨周
作者简介:杨周(1979-)，女，辽宁鞍山人，东北大学副教授；张义民(1958-)，男，吉林长春人，东北大学教授，博士生导师，教育部“长江学者奖励计划”特聘教授.
基金资助:
国家自然科学基金资助项目(51135003， 51205050， U1234208)； “高档数控机床与基础制造装备”重大专项(2013ZX04011011)；教育部新教师基金资助项目(20110042120020)；中央高校基本科研业务费专项资金资助项目(N130503002)；机械系统与振动国家重点实验室开放课题(MSV201402)；辽宁省高等学校优秀人才支持计划项目(LJQ2014030).

Disjoint Probability of Transmission Chain in Engine Valve Train

YANG Zhou， YANG Hui-da， ZHANG Yi-min

School of Mechanical Engineering & Automation， Northeastern University， Shenyang 110819， China .

Received:2015-07-07 Revised:2015-07-07 Online:2016-10-15 Published:2016-10-14
Contact: YANG Zhou
About author:-
Supported by:
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摘要/Abstract

摘要： 以某型发动机配气机构传动链为研究对象，应用随机摄动和概率可靠性等分析方法，建立了配气机构脱节概率可靠性数学模型.当配气机构基本随机变量为正态分布时，提出了传动链脱节的可靠性分析方法.通过算例分析获得了凸轮在不同运动阶段的传动链脱节概率，以及在不同转速下的脱节失效概率，并且随着转速升高传动链发生脱节的概率也会升高，与实际情况相符合，进一步表明了所提方法的正确性.此外，通过分析脱节的原因，提出了为降低脱节概率而应采取的方法，为今后内燃机配气机构传动链的可靠性设计提供了理论依据.

关键词: 配气机构, 传动链脱节, 随机变量, 随机摄动方法, 概率可靠性

Abstract: Based on the research of certain transmission chain in gas engine valve train， a probabilistic reliability mathematical model of the disconnection of valve train was established with the method of the stochastic perturbation and probabilistic reliability. A transmission chain disjointed reliability analysis method was proposed when the valve mechanism random variables belong to normal distribution. The disjoint probabilities in different sensorimotor stage and different speed were obtained by numerical examples. The disjoint probability increases with the increase of speed， which is consistent with actual situation， and shows the correctness of the as-proposed method. A solution was proposed to reduce the disjoint probability by analyzing the reasons for disconnection， which provide a theoretical basis to improve the follow-up reliability design about engine valve transmission chain.

Key words: valve train, transmission chain disjointed, random variables, stochastic perturbation, probabilistic reliability

中图分类号:

杨周，杨辉达，张义民. 内燃机配气机构传动链脱节概率[J]. 东北大学学报:自然科学版, 2016, 37(10): 1432-1436.

YANG Zhou， YANG Hui-da， ZHANG Yi-min. Disjoint Probability of Transmission Chain in Engine Valve Train[J]. Journal of Northeastern University Natural Science, 2016, 37(10): 1432-1436.

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内燃机配气机构传动链脱节概率

Disjoint Probability of Transmission Chain in Engine Valve Train

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