震源车侧翻保护装置塑性行为与优化方法研究

李琴; 刘航; 黄志强; 陈振; 丁雅萍; 张坤; 郭亮

doi:10.13433/j.cnki.1003-8728.2016.0314

震源车侧翻保护装置塑性行为与优化方法研究

doi: 10.13433/j.cnki.1003-8728.2016.0314

1.
西南石油大学机电工程学院, 成都 610500

基金项目:

资源环境领域国家863项目(2012AA061201)资助

详细信息

作者简介:
李琴(1970-),副教授,硕士,研究方向为石油装备的现代设计理论及方法研究工作,905973416@qq.com

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- 被引次数: 0
出版历程
- 收稿日期: 2014-05-10
- 刊出日期: 2016-03-05

Study on Plastic Behavior and Optimization Method of Rollover Protective Structures for Vibrator

1.
School of Mechatronic Engineering, Southwest Petroleum University, Chengdu 610500, China

摘要

摘要: 针对目前结构的设计易造成塑性变形时应力集中区域分布不合理的问题,通过有限元仿真技术,开展对侧翻保护装置在触地碰撞时其结构塑性行为的研究。以国产KZ-28型震源车侧翻保护装置为对象,研究其结构塑性变形区域分布规律,针对其结构应力集中易造成连接处破坏的现象,通过在结构上合理设置塑性铰孔的方法进行改善,并利用正交试验法选出塑性铰孔最优设置方案。仿真结果可知:设置有塑性铰孔的KZ-28型侧翻保护装置的应力集中区域分布更加合理,避免了对连接处的破坏,并且提升了整体吸能能力。通过合理设置塑性铰孔改善应力集中分布区域和提升吸能能力的方法为进一步提高侧翻保护装置结构性能提供了科学依据。
- 震源车 /
- 侧翻保护装置 /
- 塑性铰孔 /
- 优化
Abstract: In view of existing structural design being easy to cause the unreasonable regional distribution of stress concentration when plastic deformation,the plastic behavior of rollover protective structures when colliding the ground is researched by the finite element simulation. For domestic KZ-28 vibrator, the regular pattern for plastic deformation area of its rollover protective structure is studied; Aiming at the phenomenon of stress concentration of the structure being easy to cause joint damage, plastic hinge hole is set rationally to optimize the distribution of stress concentration; and the orthogonal experiment method is used to select the best schemes for plastic hinge hole. The simulation results indicate that the distribution of stress concentration area for the KZ-28 rollover protective structures set with plastic hinge hole is more reasonable than that without plastic hinge hole, avoiding the damage to the joints, and the overall energy absorption capacity is increased. Through setting up reasonable plastic hinge hole to improve the distribution of stress concentration area, the optimization method promotes energy absorption ability and improves the performance of structure for rollover protective structures.
- optimization /
- plastic deformation /
- rollover protective structures /
- stress concentration

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参考文献(16)

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