| 一种测力传感器固有频率的提高与测试 |
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| 引用本文： | 吴强,吉爱红,王周义,戴振东.一种测力传感器固有频率的提高与测试[J].传感技术学报,2010,23(2):235-238. |
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| 作者姓名： | 吴强 吉爱红 王周义 戴振东 |
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| 作者单位： | 南京航空航天大学仿生结构与材料防护研究所,南京210016;南京航空航天大学机电学院,南京210016;南京航空航天大学仿生结构与材料防护研究所,南京,210016 |
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| 基金项目： | 国家自然科学基金重点项目资助(60535020);;自然科学基金面上项目资助(50975140);;国家高技术发展计划资助(2007ZA04Z201) |
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| 摘 要： | 提高测力传感器的固有频率能有效增强被测力数据的可靠性。介绍了一种悬臂梁测力传感器提高固有频率的设计方案,以及用高温火焰烧断承载线产生阶跃激励以测试实体传感器固有频率的新方法。该方案使用有限元软件ANSYS对传感器进行模态分析和结构静力分析,结合仿真结果和悬臂梁固有频率公式修改模型,使测力传感器固有频率提高了60%以上,达到了360 Hz。实际测试结果与有限元仿真结果十分接近,充分证明了改进方案的有效性。
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| 关 键 词： | 测力传感器 悬臂梁 固有频率 阶跃激励 有限元 |
Improvement and Test for a Force Sensor's Natural Frequency |
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| WU Qiang,JI Ai-hong,WANG Zhouyi,DAI Zhendong.Improvement and Test for a Force Sensor's Natural Frequency[J].Journal of Transduction Technology,2010,23(2):235-238. |
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| Authors: | WU Qiang JI Ai-hong WANG Zhouyi DAI Zhendong |
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| Affiliation: | 1.Institute of Bio-Inspired Structure and Surface Engineering;Nanjing University of Aeronautics and Astronautics;Nanjing 210016;China;2.College of Mechanical and Electrical Engineering;China |
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| Abstract: | The reliability of the force data acquired from sensor was highly affected by force sensor's natural frequency.This paper introduced a design scheme of improvement a cantilever beam-sensors' natural frequency and a method to test it by the step response.The step response was produced by the load-line fused by heat.In the design scheme modal analysis and structural static analysis of the force sensor were studied to calculate natural frequencies and strains using ANSYS software.Model updating and simulation ... |
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| Keywords: | force sensor cantilever beam natural frequency step response FEM(Finite Element Method |
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