液气锤冲击振动及对基础影响的研究  

Research on impact vibration of counterblow hydraulic-air hammer and its effect on foundation

作　　者：毛君[1] 张宇[1] 许文馨[1] 谢苗[1] 

机构地区：[1]辽宁工程技术大学机械工程学院,辽宁阜新123000

出　　处：《锻压技术》2013年第2期160-163,共4页Forging & Stamping Technology

摘　　要：阐述了液气锤的组成、工作原理及工作过程,通过对液气锤工作过程中的力学特性分析,建立了设备工作过程中的数学模型;利用MATLAB软件构建SIMULINK模型对锤体系统的振动过程以及对基础产生的激励进行仿真,得到了不同工作腔气体压力、支撑缸气体压力和等效刚度系数下液气锤锤体的振动曲线以及基础振动曲线;分析了工作腔气体压力、支撑缸气体压力和等效刚度系数对锤体系统的振动特性及对基础产生激励的影响,为设备优化设计提供依据。The structure, working principle and working process of the hydraulic-air hammer were described. The mechanics model of counterblow hydraulic-air hammer in the working process was established by force analysis and thenthe vibration simulation of hammer body with MATLAB based on SIMULINK model coming from mechanics model was carried out to obtain the vibration curves of different gas pressures in working chamber, gas pressures in support-ing cylinder and equivalent stiffness. The effects of gas pressure in working chamber, gas pressure in supporting cylin der and equivalent stiffness on the vibration of hammer body and its excitation of foundation were analyzed, which provides the basis for optimization design of hydraulic-air hammer.

关 键 词：液气锤 力学模型 振动 仿真 

分 类 号：TB533[理学—物理]