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Development and Validation of a Digital Twin System Model for a Piezoelectric Sensor

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Development and Validation of a Digital Twin System Model for a Piezoelectric Sensor/ Kailer M Okura.
作者:	Okura, Kailer M.,
面頁冊數:	1 electronic resource (111 pages)
附註:	Source: Masters Abstracts International, Volume: 87-03.
Contained By:	Masters Abstracts International87-03.
標題:	Electrical engineering. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=32171794
ISBN:	9798293880829

Development and Validation of a Digital Twin System Model for a Piezoelectric Sensor
Okura, Kailer M.,

Development and Validation of a Digital Twin System Model for a Piezoelectric Sensor [electronic resource] /Kailer M Okura. - 1 electronic resource (111 pages)

Source: Masters Abstracts International, Volume: 87-03.

This study presents a multiphysics modeling framework for a piezoelectric force sensor embedded within an automotive tire system, combining finite element and circuit simulation with empirical validation. The project had three primary objectives: (1) to modify an existing two-dimensional axisymmetric tire model in COMSOL® to accommodate localized point loading, (2) to develop a virtual representation of a multilayer piezoelectric sensor capable of predicting voltage output under mechanical stress, and (3) to validate this model utilizing experimental techniques. To address the tire modeling challenge, the axisymmetric geometry was extruded into a complete three-dimensional model to enable the simulation of discrete contact forces. A simplified pseudo-tire model, constructed with linear elastic materials, was able to converge under internal pressure and contact loading, producing a peak von Mises stress of 2 × 105 N/m 2 and a maximum displacement of 3 × 10−2 m at 5 kPa of interior air pressure. For the sensor, a two-dimensional COMSOL model was coupled with an LTspice® circuit to capture electromechanical coupling and time-dependent electrical behavior. The COMSOL simulation produced a peak voltage of 33.55 V and an integrated charge of 1.25 × 10−8 C under a ±500 N force sweep. Experimental validation using threepoint bending and a voltage follower circuit yielded a capped sensor output of approximately 5 V at 250 N. Comparison between the COMSOL and experimental force-displacement data showed partial agreement, with a standard deviation of 2.71 N and a 24.23 % error. While the simulation accurately captured the sensor's early behavior, it lacked the nonlinear plateau observed in the experimental results. This discrepancy suggests that future work should incorporate parasitic loss mechanisms. This integrated modeling approach lays the foundation for digital twin frameworks in next-generation intelligent tire system.

English

ISBN: 9798293880829Subjects--Topical Terms:

596380
Electrical engineering.
Subjects--Index Terms:

Automotive tire

Development and Validation of a Digital Twin System Model for a Piezoelectric Sensor
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