基于势能为常量的振动与冲击机械节能原理  

Energy-saving principle of vibratory machinery design based on constant potential energy

作　　者：车胜创[1] 

机构地区：[1]长安大学工程机械学院,陕西西安710064

出　　处：《长安大学学报（自然科学版）》2007年第5期107-110,共4页Journal of Chang’an University(Natural Science Edition)

基　　金：国家863计划项目(2003AA430020)

摘　　要：为了研究振动与冲击机械存在浪费能源的问题,根据振动与冲击机械在启动阶段功率消耗最大和受到有势力(保守力)作用的两个特征,采用受力和能量分析方法,由质点系动能定理的微分形式对其功率方程进行了分析。分析表明,在设计振动与冲击机械系统时,只要使系统的总势能为常量(或启动阶段为最小值),则维持系统正常工作时需输入的功率将会降低。计算实例表明,该原理具有良好的节能效果。In order to study the energy-wasting problems in the vibration-shock machinery, the power equations of the machinery are analyzed with the methodology of force and energy analysis.Through the theorem of kinetic energy with differential form of particle system, the machinery has the maximum power consumption and potential forces at the start-up phase. The analysis result shows that the required power keeping normal operation for the particle system will decrease under constant potential energy. Finally, the practical calculation of an example prove that the principle is better for energy-saving. 1 fig, 7 refs.

关 键 词：机械工程 振动与冲击机械 设计 节能 势能 常量 

分 类 号：U415.5[交通运输工程—道路与铁道工程]