分析了反向扩孔气动冲击器工作原理，并对活塞进行运动和动力学分析，建立活塞运动的微分方程组；对工作过程中冲击器内三个气腔的容积和压力变化规律进行分析，建立活塞在不同运动阶段期间三个气腔的容积和压力变化方程组，以及活塞在不同运动阶段期间三个气腔间气体质量交换的流量方程组。通过上述研究建立反向扩孔气动冲击器工作过程的数学模型和仿真方法。研究冲击器的性能参数与结构参数之间的理论关系，在此基础上建立冲击器的优化设计方法，为反向扩孔气动冲击器的应用提供理论支持。
Abstract
The piston's movement differential equations were built based on the analyzation of the working principles of reverse countboring pneumatic impactor as well as kinematics and dynamics of the piston. Analyzed the change rule of three air chambers' volume and pressure of impactor in the working process. Volume and pressure change equations of three air chambers and flow equations of gaseous mass exchange among the three chamber were built during different moving stages of the piston. Based on the above study, set up mathematical model and simulation method of the working process of reverse counterboring pneumatic impactor. Study theoretical relationship between performance parameters and structure parameters of impactor. Based on this, establish optimization design method of impactor providing theoretical support for the application of reverse counterboring pneumatic impactor.
关键词
反向扩孔气动冲击器 /
数学模型 /
结构 /
性能 /
优化
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Key words
reverse counterboring pneumatic impactor /
mathematical model /
structure /
performance /
optimize
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