Haptic interaction with fluid based on smooth particles and finite elements

Abstract

The modeling force feedback for haptic device proxies serves as a basis for haptic interaction. Thus far, the mainstream method for the haptic simulation of fluid emphasizes the dynamic behavior of the fluid based on user input, neglecting the concrete influence on the user derived from fluid by simplifying the dynamics of the proxy to economize overhead and accelerate computation. Being limited to the calculation of contact force, the resulting simulations are distorted and unrealistic. To address this issue, we propose a new hybrid model for haptic interaction with fluids based on FSI (fluid solid interaction). The fluid is modeled with SPH and the flexible proxy is modeled with FEM, which runs in real time with the algorithm optimization and hardware acceleration. To evaluate the efficiency of the hybrid model, some comparative experiments are made, and the results are analyzed. © 2014 Springer International Publishing.