Engineering Research Equipment Grant: Vibration Excitation and Measurement System

该奖项提供资源用于采购设备，以支持四个领域的研究，包括使用工业机器人在符合要求的装配中插入销孔、轴承故障检测、振动微粒运动中的分离机制以及机械结构响应。该设备包括激振器系统、几个加速度计和位移传感器、频闪镜、基于IBM PC-AT的数据采集系统和X-Y绘图仪。装配任务的重点是振动辅助柔顺插入，包括对插入过程的运动学和动力学分析，以及研究各种工艺参数(包括振动频率、振动幅度、柔度和公差)的影响的实验研究。故障检测研究是利用实验结果来替代经典检测方案的一种机器诊断方法。该方法的有效性已在轴承系统上进行了实验验证。粒子动力学研究试图了解粒子-粒子和粒子-壁面碰撞的机制，这是涉及粉末和颗粒状材料的许多过程的特征。机械响应研究的重点是机器子系统，包括机器支架和轮系。

This award provides resources to procure equipment to support research in four areas, including peg in hole insertion in compliant assembly using industrial robots, bearing fault detection, mechanisms of segregation in vibratory particulate motion, and mechanical structural responses. The equipment comprises a vibration exciter system, several accelerometers and displacement sensors, a stroboscope, an IBM PC-AT based data acquisition system, and an X-Y plotter. The assembly task focuses on vibration assisted compliant insertion, and includes analysis of the kinematics and dynamics of the insertion process as well as an experimental study to investigate the effects of various process parameters including vibration frequency, vibration amplitude, compliance, and tolerance. The fault detection research is an alternative machine diagnostics approach to the classical detection scheme which uses experimental results. The method's effectiveness is tested experimentally for bearing systems. The particle dynamics research attempts to understand the mechanisms of particle-particle and particle-wall collisions which are characteristic of many processes involving powdered and granular materials. The mechanical responses study focuses on machine subsystems including machine supports and gear trains.