| 具有不对称弹性梁的梳状微加速度计的结构变形分析 |
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| 引用本文： | 何江波,谢进.具有不对称弹性梁的梳状微加速度计的结构变形分析[J].机械,2011,38(10):5-8. |
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| 作者姓名： | 何江波 谢进 |
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| 作者单位： | 西南交通大学机械工程学院,四川成都,610031 |
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| 基金项目： | 国家自然科学基金资助项目(50675180) |
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| 摘 要： | 通常情况,梳状微加速度计具有对称结构.但是加工工艺的缺陷可能导致梳状微加速度计的弹性梁不对称,引起结构发生扭转运动.对于双端固定梁式结构,分析了弹性梁的不对称性对结构等效刚度的影响.在假设弹性梁长度相等,但弯曲刚度不相等的前提下,推导出了结构的等效刚度计算公式,并将其推广到任意不对称情况.最后用有限元仿真实例验证了理论...
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| 关 键 词： | 微加速度计 不对称弹性梁 有限元分析 |
Structure deformation analysis of comb microaccelerometer with asymmetrical elastic beams |
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| HE Jiang-bo,XIE Jin.Structure deformation analysis of comb microaccelerometer with asymmetrical elastic beams[J].Machinery,2011,38(10):5-8. |
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| Authors: | HE Jiang-bo XIE Jin |
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| Affiliation: | HE Jiang-bo,XIE Jin(School of Mechanical Engineering,Southwest Jiaotong University,Chengdu 610031,China) |
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| Abstract: | Usually,Comb Microaccelerometers have symmetrical structure.However,imperfect fabrication may make the elastic beams of comb microaccelerometer strcucture asymmetrical,and cause rotation of the structure.For the structure with double-clamped beams,the paper analyze the effect of the asymmetry to the effective stiffness.On the assumption of equal length and unequal bending rigidity,the explicit formulas to calculate the values of effective stiffness are obtained,and we extend the formulas to usual asymmetric... |
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| Keywords: | microaccelerometer asymmetrical elastic beam finite element analysis |
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