Abstract

The author presents the mathematical model of an autooscillating one-way action and positive-displacement system with two piston arresters. The dynamic criteria of similarity are determined, including: stiffness ratio of springs of the accumulator and percussion assembly; proportional value of the ratio between potential energy of the accumulator and kinetic energy of the piston at the preset parameters of the power source; dimensionless coordinates of the piston when the positions of the distributor and the second arrester of the piston, as well as the pre-tension of the spring between the piston and the percussion assembly housing change; velocity recovery coefficient of the piston. Numerical calculations are performed in the space of the similarity criteria. The nomograms of isolines of the integral output parameters of the system and the oscillograms of dynamic characteristics are plotted. Dynamics of the system is analyzed, and its behavioral features are revealed in a wide range of input parameters. In the space of the similarity criteria, the boundaries are determined for the domains of single-blow, double-blow and multi-blow limit cycles.

中文翻译：

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带两个活塞避雷器的单向动作液压冲击系统的基本特性

摘要

作者提出了具有两个活塞制动器的自振荡单向作用和正位移系统的数学模型。确定了相似的动态标准，包括：蓄能器和冲击组件的弹簧刚度比；预设动力源参数下蓄能器势能与活塞动能之比的比例值；当活塞的分配器和第二制动器的位置以及活塞与冲击组件壳体之间的弹簧的预紧力发生变化时，活塞的无量纲坐标；活塞的速度恢复系数。数值计算在相似标准的空间中进行。绘制了系统积分输出参数等值线的列线图和动态特性的示波图。分析了系统的动力学，并在广泛的输入参数中揭示了其行为特征。在相似准则的空间中，边界是为单吹、双吹和多吹极限循环的域确定的。