Piezoelectric vibration sensor finite element simulation method and device, electronic equipment and storage medium

By performing modal simulation analysis and simplification on the structural model of the piezoelectric vibration sensor, the natural frequency difference is ensured to be within the threshold, which solves the problem of lack of quantitative analysis in the finite element simulation of piezoelectric vibration sensors in the existing technology, and realizes the saving of computing resources and the improvement of simulation efficiency.

CN120974799APending Publication Date: 2025-11-18CASIC DEFENSE TECH RES & TEST CENT
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Patent Information

Application Number
CN202510858330.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-25
Publication Date
2025-11-18

AI Technical Summary

Technical Problem

The lack of quantitative analysis basis in the existing finite element simulation of piezoelectric vibration sensors leads to uncertainty in the simplification methods for all components, affecting simulation efficiency and wasting computational resources.

Method used

Modal simulation analysis was performed on the structural model of the piezoelectric vibration sensor to obtain the first natural frequency. The structural model was then simplified to ensure that the difference between the natural frequencies of the simplified model and the original model was within a preset threshold. Finite element simulation was then performed.

Benefits of technology

This reduces the computational load of finite element simulation, minimizes the waste of computational resources, and improves simulation efficiency and accuracy.

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Abstract

The invention provides a piezoelectric vibration sensor finite element simulation method, which comprises the following steps: performing modal simulation analysis on a preset structure model to obtain a first inherent frequency; wherein the structure model is constructed according to a piezoelectric vibration sensor needing to be simulated. And carrying out structure simplification on the structure model to obtain a simplified model. And performing modal simulation analysis on the simplified model to obtain a second inherent frequency. And in response to the condition that the difference between the second inherent frequency and the first inherent frequency is smaller than a preset simplification threshold value, performing finite element simulation on the simplified model to obtain a simulation result. Therefore, consumption of computing resources in the finite element simulation process is reduced.
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