Research on Telescopic Time-variation Dynamic Characteristics of Box-type Boom

China Mechanical Engineering ›› 2016, Vol. 27 ›› Issue (01): 51-57.

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Research on Telescopic Time-variation Dynamic Characteristics of Box-type Boom

Zeng Weidong1,2;Peng Jing1,2;Ren Huili1,2;Fu Ling1,2;Liu Yanbin1,2

1.Zoomlion Heavy Industry Science and Technology Co. Ltd.,Changsha,410013
2.State Key Laboratory of Key Technologies on Construction Machinery,Changsha,410000

Online:2016-01-10 Published:2016-01-08

箱型臂架伸缩过程中的时变动力特性研究

曾维栋1,2;彭晶1,2;任会礼1,2;付玲1,2;刘延斌1,2

1.中联重科股份有限公司，长沙，410013
2.建设机械关键技术国家重点实验室，长沙，410000

基金资助:
国家高技术研究发展计划(863计划)资助项目（2013AA040203）

Abstract

Abstract:

Based on the HHT(Hilber-Hughes-Taylor) implicit time integration method, a nonlinear dynamics analysis model of a crane with a friction effect was built, and the nonlinear time-variation dynamic characteristics of box-type boom were studied. The effects of friction between the boom and sliders, the elastic stiffness and damping characteristics of the telescopic oil cylinder, and the stiffness of the crane boom on vibration of telescopic crane boom were analyzed. In view of some problems about vibration of telescopic crane boom, the effective improvement measures were proposed.

Key words: telescopic boom, time-variation dynamic characteristics, frictional vibration, implicit time integration

摘要：

基于HHT（Hilber-Hughes-Taylor）隐式时间积分法，建立了考虑摩擦影响的起重机带载伸缩臂架非线性动力学分析模型，研究了臂架伸缩过程中的非线性时变动力特性。分析了臂架-滑块间摩擦特性、伸缩油缸的弹性刚度及阻尼特性、臂架自身刚度等对带载伸缩臂架振动的影响。针对起重机臂架带载伸缩过程中存在的抖振问题，提出了有效的解决措施。

关键词: 伸缩臂架, 时变动力特性, 摩擦振动, 隐式积分法

CLC Number:

TH21

Zeng Weidong, Peng Jing, Ren Huili, Fu Ling, Liu Yanbin, . Research on Telescopic Time-variation Dynamic Characteristics of Box-type Boom[J]. China Mechanical Engineering, 2016, 27(01): 51-57.

曾维栋, 彭晶, 任会礼, 付玲, 刘延斌, . 箱型臂架伸缩过程中的时变动力特性研究[J]. 中国机械工程, 2016, 27(01): 51-57.

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Research on Telescopic Time-variation Dynamic Characteristics of Box-type Boom

箱型臂架伸缩过程中的时变动力特性研究

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