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Parameter Identification for Dielectric Elastomer Actuators Based on Transient‑Extracting Transform
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Lili MENG1, Zihao WU1, Xiaojian WANG2, Fucai LI2
Journal of Vibration,Measurement and Diagnosis | 2025, 45(5) : 1037 - 1041
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Journal of Vibration,Measurement and Diagnosis | 2025, 45(5): 1037-1041
• PAPER •
Parameter Identification for Dielectric Elastomer Actuators Based on Transient‑Extracting Transform
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Lili MENG1, Zihao WU1, Xiaojian WANG2, Fucai LI2
Affiliations
  • 1.School of Mechanical and Electrical Engineering，Chian Unversity of Mining and Technology　Xuzhou，221116，China
  • 2.School of Mechanical Engineering，Shanghai Jiao Tong University　Shanghai，200240，China
Published: 2025-10-01 doi: 10.16450/j.cnki.issn.1004-6801.2025.05.024
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A parameter identification method is proposed to accurately capture the nonlinear dynamic characteristics of dielectric elastomer actuators （DEAs）. First，the response signal of the actuator is acquired under swept-frequency excitation using the time-frequency analysis capability of the transient-extracting transform （TET）. Then，the harmonic and fundamental frequency components are separated and extracted，and the transfer functions for each component are computed to derive the overall transfer function of the DEA. Finally，the results are compared with experimental data. The proposed method achieves a fitting accuracy of 92.11% for the fundamental frequency transfer function and 90.35% for the second harmonic transfer function. This approach does not require prior knowledge of material properties or free energy density functions，and incorporates the influence of high-order harmonic components，offering a novel solution for parameter identification in electroactive material structures.

dielectric elastomer actuator  /  parameter identification  /  transfer function  /  transient-extracting transform
Lili MENG, Zihao WU, Xiaojian WANG, Fucai LI. Parameter Identification for Dielectric Elastomer Actuators Based on Transient‑Extracting Transform[J]. Journal of Vibration,Measurement and Diagnosis, 2025 , 45 (5) : 1037 -1041 . DOI: 10.16450/j.cnki.issn.1004-6801.2025.05.024
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Article Info
doi: 10.16450/j.cnki.issn.1004-6801.2025.05.024
  • Receive Date：2024-04-22
  • Online Date：2026-03-27
  • Published：2025-10-01
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  • Received：2024-04-22
  • Revised：2025-01-05
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Affiliations
    1.School of Mechanical and Electrical Engineering，Chian Unversity of Mining and Technology　Xuzhou，221116，China
    2.School of Mechanical Engineering，Shanghai Jiao Tong University　Shanghai，200240，China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
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Genus		 种数
Number of
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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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