Effect of material uncertainties on dynamic analysis of piezoelectric fans

Swapnil Srivastava; Shubham Kumar Yadav; Sujoy Mukherjee

doi:10.1117/12.2083012

2 April 2015 Effect of material uncertainties on dynamic analysis of piezoelectric fans

Swapnil Srivastava, Shubham Kumar Yadav, Sujoy Mukherjee

Proceedings Volume 9431, Active and Passive Smart Structures and Integrated Systems 2015; 94311W (2015) https://doi.org/10.1117/12.2083012
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2015, San Diego, California, United States

Abstract

A piezofan is a resonant device that uses a piezoceramic material to induce oscillations in a cantilever beam. In this study, lumped-mass modelling is used to analyze a piezoelectric fan. Uncertainties are associated with the piezoelectric structures due to several reasons such as variation during manufacturing process, temperature, presence of adhesive layer between the piezoelectric actuator/sensor and the shim stock etc. Presence of uncertainty in the piezoelectric materials can influence the dynamic behavior of the piezoelectric fan such as natural frequency, tip deflection etc. Moreover, these quantities will also affect the performance parameters of the piezoelectric fan. Uncertainty analysis is performed using classical Monte Carlo Simulation (MCS). It is found that the propagation of uncertainty causes significant deviations from the baseline deterministic predictions, which also affect the achievable performance of the piezofan. The numerical results in this paper provide useful bounds on several performance parameters of the cooling fan and will enhance confidence in the design process.

Citation Download Citation

Swapnil Srivastava, Shubham Kumar Yadav, and Sujoy Mukherjee "Effect of material uncertainties on dynamic analysis of piezoelectric fans", Proc. SPIE 9431, Active and Passive Smart Structures and Integrated Systems 2015, 94311W (2 April 2015); https://doi.org/10.1117/12.2083012

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