Calculation Principle of Stored Energy and Effective Power in Piezoelectric Transducer using Infinite Series of a Complex Dynamical Variable and Its Finite Difference
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概要
- 論文の詳細を見る
Both effective power and stored energy in a piezoelectric transducer can be calculated by a simple mathematical method using infinite geometric series of a complex dynamical variable $\eta$ instead of solving an ordinary or partial differential equation; this differs from the conventional methods which deal with the concept of complex power based on the theory of alternating-current phenomenon. The stored energy can be obtained by a superposition of $\eta$, in which the method of superposition reflects the electrical and mechanical boundary conditions in the transducer. By considering the finite difference of $\eta$, the effective power can also be evaluated using a method of superposition and the uncertainty principle. This method can deal with the system having an infinite number of degrees of freedom along with dissipative process, simply and easily, and is consistent with the second law of thermodynamics.
- 2001-07-15
著者
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Toda Kohji
School Of Electrical And Computer Engineering National Defense Academy
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Ohki Michio
School Of Applied Sciences National Defense Academy
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