The solution of the problem for the bonded piezoelectric materials can be summed up to find the appropriate harmonic function.
压电结合材料问题的求解，可以归结为寻找合适的调和函数。
2
To overcome the drawback of selective harmonic elimination PWM technique itself, a novel optimal solution method which optimizes the switching angle of selective harmonic elimination PWM is proposed.
为了克服特定消谐PWM技术本身的缺点，提出了一种新的优化特定消谐PWM开关角的优化解法。
3
The stationary solution of system was solved by harmonic balance method, and the amplitude-frequency response was presented.