To develop a well designed practical spring-roll dielectric elastomer
actuator system, we have to optimize the design parameters of spring-roll
dielectric elastomer and develop a voltage supply that is able to pump < br />enough controlled charges and provide a wide range of controlled
voltages to the actuator. In this paper, switched based multistage charge
pump driven by a controlled low voltage switching power supply and a
voltage driver is proposed as a wide range output voltage supply.
Spring-roll dielectric elastomer optimal design parameters according to
[1] areh1
p=5, h2
p=2, a=10. It is proven that h2
p has a subtle effect on both
actuationl1 and dimensionless axial force p/mL2L3 however it has a great
effect on the applied voltage required activating the actuator.
Furthermore, when l2
p increases, the applied voltage decreases and the
problems of high voltage are avoided. Therefore the optimal design
parameters modified to l1
p=5, l2
p=5, a=10 instead of l1
p=5, l2
p=2,
a=10.
In this paper, based on the equations of state, new approaches for
designing a spring-roll dielectric elastomer actuator have been developed.
The key issue of the actuation range depends upon weather the actuator
has a fixed load or variable multi-loads.
The achieved results based on the proposed approaches show that the
applied voltage has been reduced and the design of the actuator is getting
simpler