Influence of different parameters on nonlinear frequency of hyper-elastic micro-resonators
سال انتشار: 1398
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 424
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شناسه ملی سند علمی:
ISME24_649
تاریخ نمایه سازی: 21 مهر 1398
چکیده مقاله:
Dielectric elastomer micro—bridge resonator that is sandwiched between two electrodes considered here. Geometric nonlinearity introduced with Von- Karman strain—displacement relationship and material nonlinearity modeled by Yeoh hyper-elastic model. Governing equation of motion is derived by Hamilton principle. We used Lindstedt-Pooincare method to achieve frequency response of the resonator. Mode shapes of microbeam under this model presented and influence of different parameters on nonlinear frequency studied. . It is shown that mode number has a significant effect on normalized frequency so that the higher the mode number, the more the influence of aspect ratio and initial maximum amplitude.
نویسندگان
Saeed Danaee Barforooshi
Phd candidate, Shahrood University of Technology
Ardeshir Karami Mohammadi
Ass۰ciate professor, Shahrood University of Technology;
lman Ghaffari
Phd candidate, Shahrood University of Technology;