Future work

In our work, we derive the relationship of applied voltage and displacement as equation (2. 31) by constructing the mechanical-electrical coupling model depending on mechanical properties of hyper-elastic model and electric properties of parallel-capacitor. Because the equation of relationship is already derived successfully, it is convenient to discuss about hyper-elastic model in the future. Meanwhile, we derive that breakdown occurs before pull-in effect occurs by the discriminant of condition. In the future work, operating characteristics of DEAPs is affected by applied voltage and geometric size of DEAPs. We try to make the DEA actuator thinner, the breakdown electric field increases at the same applied voltage. If breakdown electric field increases, the range in use of actuator becomes large. Meanwhile, we can discuss whether pull-in effect occurs or not by discriminant of condition. It is difficult to manufacture thinner DEA actuator. VHB is chosen by us out of its stickiness. This characteristic is a trouble for us. How to choose appropriate DEA material as actuator is very important. Today, the researches of reliability are important issues. We are going to try to discuss reversibility, repeatability and durability of novel materials in the future. If reliability of material is good enough, practicability will improve effectively.

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