小质量锥柱形件转动惯量测试的研究

发布时间：2018-03-08 19:25

本文选题：转动惯量　切入点：三扭杆机构　出处：《长春理工大学》2015年硕士论文　论文类型：学位论文

【摘要】：转动惯量是表示刚体转动惯性大小的物理量,在机械零件结构设计和工程实践中具有重要的意义,同时也是评定各类飞行器和航天产品可靠性和飞行稳定性的重要指标之一。本文通过分析总结国内外转动惯量测量装置的具体特点,针对小质量锥柱形件创造性地设计出以扭摆法为基础的三扭杆转动惯量测试装置,在保证精度的基础上,显著地提高了测量范围。首先详细介绍了三扭杆机构的工作原理,并重点推导计算出转动惯量的测量范围,实现了测量范围的大幅度提高,同时对运动扭杆进行受力仿真分析,校核其强度,保证扭杆正常工作。其次是对电控系统的设计,主要包括可编程控制器与人机界面的硬件连接和软件设计以及光电传感器的选择。最后根据实际工况,对测量装置进行具体的误差和精度分析,并提出测量设备的标定和检验方法。通过实验数据和结果,验证了设备的测试精度。
[Abstract]:The moment of inertia is physical quantities of rigid body rotation inertia, has important significance in the design and engineering practice of mechanical parts structure, is also one of the important indicators of evaluation of aircraft and aerospace product reliability and flight stability. This paper analyzes and summarizes the specific characteristics of internal and external device for measuring rotation inertia, quality for small conical cylindrical parts creatively designed three torsion pendulum method based on inertia test device, on the basis of ensuring the accuracy, significantly improves the measurement range. First introduced the working principle of the three torsion bar mechanism, and focus on the derived measurement range of inertia moment, the measuring range is greatly improved, at the same time, the movement simulation of torsion bar stress analysis, check its strength, ensure the torsion bar normal work. The second is the design of electronic control system, including a programmable controller. The controller and the man-machine interface design of hardware and software as well as the choice of photoelectric sensor. Finally, according to the actual conditions, the error and accuracy analysis on specific measuring device, and put forward the calibration and test methods of measuring equipment. Through the experimental data and results of testing the accuracy of the equipment is verified.

【学位授予单位】：长春理工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：V216

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