PENGARUH GEOMETRI SILINDER DAN BALOK TERHADAP TEGANGAN OUTPUT PIEZOELEKTRIK

    Iffat Khalih Girasto, - and Aip Saripudin, - (2025) PENGARUH GEOMETRI SILINDER DAN BALOK TERHADAP TEGANGAN OUTPUT PIEZOELEKTRIK. S1 thesis, Universitas Pendidikan Indonesia.

    Abstract

    ABSTRAK Fenomena piezoelektrik menawarkan potensi signifikan dalam konversi energi mekanik dari sumber lingkungan, seperti langkah kaki manusia, menjadi energi listrik. Namun, kinerja perangkat piezoelektrik sangat dipengaruhi oleh desain geometrisnya. Penelitian ini bertujuan untuk menganalisis pengaruh variasi dimensi (tinggi dan luas penampang) pada geometri silinder dan balok PZT-4 terhadap tegangan output piezoelektrik, serta mengidentifikasi konfigurasi geometri yang paling optimal.Metodologi penelitian melibatkan simulasi 3D menggunakan COMSOL Multiphysics, dengan fokus pada modul Geometry, Material, Solid Mechanics, dan Piezoelectric Devices. Material PZT-4 dikenai gaya mekanis 100N pada sumbu Z, dan tegangan output diukur untuk berbagai kombinasi tinggi dan luas penampang. Hasil simulasi menunjukkan bahwa tegangan output meningkat seiring dengan peningkatan tinggi dan penurunan luas penampang untuk kedua geometri. Secara signifikan, geometri balok secara konsisten menghasilkan tegangan output yang lebih tinggi dibandingkan silinder padadimensi yang serupa. Balok dengan tinggi 10 cm dan luas penampang 1 cm² menghasilkan tegangan sekitar 2498,20 V, jauh melampaui silinder 794,59 V pada kondisi yang sama. Kata Kunci: COMSOL Multiphysics, Geometri Piezoelektrik, Piezoelektrik, PZT4, Tegangan Output ABSTRACT The piezoelectric phenomenon offers significant potential for converting mechanical energy from environmental sources, such as human footsteps, into electrical energy. However, the performance of piezoelectric devices is greatly influenced by their geometric design. This study aims to analyze the influence of dimensional variations (height and cross-sectional area) on the geometry of PZT-4 cylinders and blocks on piezoelectric output voltage, as well as to identify the most optimal geometric configuration. The research methodology involves 3D simulation using COMSOL Multiphysics, focusing on the Geometry, Material, Solid Mechanics, and Piezoelectric Devices modules. The PZT-4 material is subjected to a mechanical force of 100 N along the Z-axis, and the output voltage is measured for various combinations of height and cross-sectional area. Simulation results show that the output voltage increases with increasing height and decreasing cross sectional area for both geometries. Significantly, the beam geometry consistently produces higher output voltage compared to the cylinder at similar dimensions. A beam with a height of 10 cm and a cross-sectional area of 1cm² produced a voltage of approximately 2498.20 V, far exceeding the cylinder's 794.59 V under the same conditions. Keywords: COMSOL Multiphysics, Piezoelectric Geometry, Piezoelectric, PZT-4, Output Voltage

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    Official URL: https://repository.upi.edu/
    Item Type: Thesis (S1)
    Additional Information: https://scholar.google.com/citations?view_op=new_articles&hl=en&imq=Iffat+Khalih+Girasto# ID SINTA Dosen Pembimbing: AIP SARIPUDIN: 6002410
    Uncontrolled Keywords: Kata Kunci: COMSOL Multiphysics, Geometri Piezoelektrik, Piezoelektrik, PZT-4, Tegangan Output. Keywords: COMSOL Multiphysics, Piezoelectric Geometry, Piezoelectric, PZT-4, Output Voltage
    Subjects: L Education > L Education (General)
    T Technology > TK Electrical engineering. Electronics Nuclear engineering
    Divisions: Fakultas Pendidikan Teknik dan Industri > Jurusan Pendidikan Teknik Elektro > Program Studi Teknik Tenaga Elektrik
    Depositing User: Iffat Khalih Girasto
    Date Deposited: 27 Oct 2025 07:49
    Last Modified: 27 Oct 2025 07:49
    URI: http://repository.upi.edu/id/eprint/144461

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