| 平行梁式称重传感器的有限元分析 |
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| 引用本文： | 赵思宏,田春艳,范惠林. 平行梁式称重传感器的有限元分析[J]. 光学精密工程, 2002, 10(2): 209-213 |
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| 作者姓名： | 赵思宏 田春艳 范惠林 |
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| 作者单位： | 空军第二航空学院,吉林,长春,130022 |
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| 基金项目： | 空军 2 0 0 1年装备检测设备重点项目 (No .2 0 0 10 4 16 ) |
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| 摘 要： | 称重传感器弹性元件的结构直接影响传感器的测量精度,根据平行梁式称重传感器的结构和特点建立了力学模型,用AutoCAD二次开发自动生成有限元网格,针对线段相交三种情况处理,使得被打破的"网格"成为结构离散图,由此生成有限元模型,通过在其它尺寸不变的情况下分别改变各个结构尺寸,从而找出弹性元件各结构尺寸对输出应变的影响规律,最后利用ViziCAD对模型进行了有限元应力应变分析并将样品输出灵敏度的计算值与实测值进行比较,二者结果较为吻合,利用有限元辅助分析设计,可以提高生产精度及效率.
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| 关 键 词： | 传感器 弹性元件 有限元 ViziCAD |
| 文章编号： | 1004-924X(2002)02-0209-05 |
| 收稿时间： | 2001-09-20 |
| 修稿时间： | 2001-09-20 |
Finite element analysis of the parallel girder load sensor |
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| ZHAO Si_hong,TIAN Chun_yan,FAN Hui_lin. Finite element analysis of the parallel girder load sensor[J]. Optics and Precision Engineering, 2002, 10(2): 209-213 |
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| Authors: | ZHAO Si_hong TIAN Chun_yan FAN Hui_lin |
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| Affiliation: | The Second Aeronautical Institute of Air Force, Changchun, 130022, China |
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| Abstract: | The elastomer of a parallel girder load sensor affects the measuring precision directly. According to the structure and feature of the elastomer of a parallel girder load sensor, the rational finite element model of the elastomer was built, and in the course of exploiting Auto CAD of the sensor, a method of the automatic generation of the finite element mesh was founded. Dealing with three instances of line intersecting, the relationship between the out_stain and the dimension of the structure was also founded. Finally, by means of ViziCAD , the stress and strain of the finite element were analyzed.Compared the calculated value with the measured one of the output sensitivity,it is proved that they are nearly identical.Therefore, the finite element method can improve the precision and efficiency of the manufacture. |
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| Keywords: | sensors elastomers finite element ViziCAD |
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