摘要
针对称重传感器误差标定装置中传感器夹具发生受迫振动问题,采用基于模态叠加法的谐响应分析技术,对传感器夹具的动态特性进行了研究。基于模态、谐响应分析理论,求解得到称重传感器夹具的动态响应特性。研究结果确定了对称重传感器夹具动态性能影响最大的模态频率;并将仿真结果与模态试验数据进行了对比;经过谐响应分析得到了夹具正常工作状态下夹具材料力学性能与谐振频率之间的关系。研究结论可为称重传感器夹具的优化设计提供一定的理论参考。
In order to solve the problem of forced vibration in the sensor fixture of weighing sensor error calibration device, a harmonic response analysis technique based on modal superposition method is used to study the dynamic characteristics of sensor fixture.And,the dynamic response characteristics of the load cell are obtained based on the modal and harmonic response analysis theory.The simulation results which show the modal frequencies that have the greatest effect on the dynamic performance of the load cell fixture are compared with the modal test data.After the harmonic response analysis,the relationship between the mechanical properties and the resonant frequency of the fixture under the normal working condition are obtained.The conclusion can provide a theoretical reference for the optimization design of the weighing sensor fixture.
出处
《科学技术与工程》
北大核心
2017年第20期28-34,共7页
Science Technology and Engineering
基金
国家自然科学基金(51605270)
陕西省科技厅科学研究计划(2016JM1030)
陕西理工学院人才启动基金(SLGQD13(2)-21)
陕西省县域重点科技计划(2012XY-15)资助
关键词
称重传感器
夹具
有限元
动态特性
weighing sensor
fixture
finite element
dynamic characteristics
