FAST TRANSIENT SIMULATION OF OUTPUT VOLTAGE FOR PIEZORESISTIVE MICROACCELEROMETERS USING MODEL ORDER REDUCTION

机译：基于模型阶数减少的热敏微加速器输出电压的快速瞬态仿真

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The transient analysis for output voltage of a piezoresistive microaccelerometer takes a relatively high computational cost because at least two iterations are required to calculate the piezoresistive-structural coupled response at each time step. The high computational cost for calculating the transient output voltage can be highly reduced by a way of using Krylov-based model order reduction and the least square method.In the approach, data on static displacement and output voltage calculated by piezoresistive-structural coupled simulation for three acceleration inputs are used to develop a quadratic regression model relating the output voltage to the displacement at a certain observation point. The transient output voltage is then calculated by the regression model using the displacement response cheaply calculated by the reduced-order models.A high-G piezoresistive microaccelerometer with various input accelerations was studied to represent the efficiency and accuracy of the suggested approach.

机译：压阻式微加速度计的输出电压的瞬态分析需要相对较高的计算成本，因为在每个时间步长至少需要两次迭代才能计算出压阻-结构耦合响应。使用基于Krylov的模型降阶和最小二乘方法可以大大降低计算瞬态输出电压的高计算成本。该方法中，通过压阻-结构耦合仿真计算出的静态位移和输出电压数据三个加速度输入用于建立二次回归模型，该模型将输出电压与特定观察点处的位移相关联。然后通过回归模型使用降阶模型廉价计算的位移响应来计算瞬态输出电压。研究了具有各种输入加速度的高G压阻微加速度计，以表示该方法的效率和准确性。

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来源
《The 7th China-Japan-Korea joint symposium on optimization of structural and mechanical systems》|2012年|1-4|共4页
会议地点 Huangshan(CN)
作者
Ki Beom Kwon; Jeong Sam Han;
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作者单位

Dept.of Mechanical Design Engineering,Andong National University,760-749,Andong,Korea;

Dept.of Mechanical Design Engineering,Andong National University,760-749,Andong,Korea;

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会议组织
原文格式 PDF
正文语种 eng
中图分类 TP271.2;
关键词
Model order reduction; Krylov subspace; Least square method; Piezoresistive microaccelerometer;

机译：模型降阶; Krylov子空间;最小二乘方法;压阻微加速度计;

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FAST TRANSIENT SIMULATION OF OUTPUT VOLTAGE FOR PIEZORESISTIVE MICROACCELEROMETERS USING MODEL ORDER REDUCTION

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