Based on the basic theory of mechanics,kinematic and dynamic analysis for a slider-crank mechanism with a balance mechanism is performed.The theoretical formula of the load spectrum for the interaction between the cra...Based on the basic theory of mechanics,kinematic and dynamic analysis for a slider-crank mechanism with a balance mechanism is performed.The theoretical formula of the load spectrum for the interaction between the crank shaft and the bearing seat of the upper beam is achieved by approximately simplifying the mechanical model of the crank shaft.The simulation for the load spectrum data of combined frame under the operating conditions of blanking or piling is performed using Matlab and the law of the load spectrum curves under these two conditions is analyzed.The simulation results show that under a no-load condition,the load spectrum curves of the interaction between the crank shaft and the bearing seat of the upper beam present a form of periodic sine wave and under the piling condition,the load spectrum curves of the interaction between the crank shaft and the bearing seat of the upper beam present a form of periodic pulse wave.The simulation results can provide a theoretical foundation for the load determination during the process of analyzing the dynamic characteristics on the combined frame of a closed high-speed press through the finite element method.展开更多
介绍了一种基于 L ab Windows/ CVI虚拟仪器平台的摩托车发动机曲轴连杆总成动平衡测试系统的测量原理和计算方法 ,详细讨论了动平衡测量的硬件组成和软件设计。该系统能测量曲轴连杆总成的双面动不平衡量、主轴倾角、不平衡率等质量特...介绍了一种基于 L ab Windows/ CVI虚拟仪器平台的摩托车发动机曲轴连杆总成动平衡测试系统的测量原理和计算方法 ,详细讨论了动平衡测量的硬件组成和软件设计。该系统能测量曲轴连杆总成的双面动不平衡量、主轴倾角、不平衡率等质量特性参数 ,具有功能完备、高精度、高效率、人机友好等优点。系统已在生产现场使用 ,可替代某些进口设备 。展开更多
基金The Key Technologies R& D Program of Jiangsu Province(No. BE2006036)Transformation Program of Science and Technology Achievements of Jiangsu Province (No. BA2008030)
文摘Based on the basic theory of mechanics,kinematic and dynamic analysis for a slider-crank mechanism with a balance mechanism is performed.The theoretical formula of the load spectrum for the interaction between the crank shaft and the bearing seat of the upper beam is achieved by approximately simplifying the mechanical model of the crank shaft.The simulation for the load spectrum data of combined frame under the operating conditions of blanking or piling is performed using Matlab and the law of the load spectrum curves under these two conditions is analyzed.The simulation results show that under a no-load condition,the load spectrum curves of the interaction between the crank shaft and the bearing seat of the upper beam present a form of periodic sine wave and under the piling condition,the load spectrum curves of the interaction between the crank shaft and the bearing seat of the upper beam present a form of periodic pulse wave.The simulation results can provide a theoretical foundation for the load determination during the process of analyzing the dynamic characteristics on the combined frame of a closed high-speed press through the finite element method.
文摘介绍了一种基于 L ab Windows/ CVI虚拟仪器平台的摩托车发动机曲轴连杆总成动平衡测试系统的测量原理和计算方法 ,详细讨论了动平衡测量的硬件组成和软件设计。该系统能测量曲轴连杆总成的双面动不平衡量、主轴倾角、不平衡率等质量特性参数 ,具有功能完备、高精度、高效率、人机友好等优点。系统已在生产现场使用 ,可替代某些进口设备 。
