Empirical modeling of a squeeze film haptic actuator

In the analysis of squeeze film haptic tactile feedback actuator, we focus our attention on establishing an empirical model of the force generated on the user´s finger. The model is based on FEM simulations which take into account the real motion of the actuator. As analytical model exists for a very few special cases, we expose a methodology to establish an empirical model of the force created between a finger and an actuator aided by an optimal design of experiments plan. Then, we treat an example of an actuator which generates a sinc profile of vibration amplitude.