Calculations of Actuator Promising Designs

Actuator calculation is a problem of current interest. It is required to develop new actuator designs with better performance. The finite element method was used for complex shape bimetallic actuator calculation. The algorithm was implemented in Abaqus finite element software. The actuator elastic characteristic and deformed shape are the results of the calculation.  Calculation results for different size actuators were compared. A new design of a thermo-bimetallic actuator consisting of a shallow dome with a U-shaped tongue was de-scribed. It deforms with a «snap-through» when the temperature reaches a critical level. The layers of bimetal at the shallow dome and tongue are placed on the opposite sides, making possible the maximization of displacement of the actuator characteristic points. The proposed actuator design and the developed calculation methodology can be recommended for the implementation to the calculation practice and actuator element base development.

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