Empirical Modeling of a Squeeze Film Haptic Actuator

In the analysis of squeeze film haptic tactile feedback actuators, attention is focused on establishing an empirical model of the force generated on the user´s finger. The model is based on finite-element simulations which take into account the real motion of the actuator. As analytical models exist for very few special cases, a methodology is exposed to establish an empirical model of the force created between a finger and an actuator aided by an optimal design-of-experiment plan. Then, an example of an actuator which generates a sinc profile amplitude of vibration is treated.