An interactive virtual prototyping platform considering environment effect described by fluid dynamics

Virtual prototyping (VP) technology has been regarded as a cost-effective way of envisaging real circumstances that enhance effective communication of designs and ideas, without manufacturing physical samples. Different from recent interactive VPs that are only based on multi-body systems, our VP platform is based on a multi-body coupled with fluid system, that is, the performance and functions of a VP will not be independent of environment factors or disturbances but interact with each other and constitute a whole system. Using this platform designers can simulate a robot through vacuum, air, water environments, etc., so it can provide a better support to the generality and quality of a VP. As for interactive manipulation, designers can modify the constraints between bodies, apply force/torque to interested bodies and change the parameters of forces/torques. Corresponding to user interaction, the platform automatically updates the dynamic behavior of the VP under current condition in the simulation loop. Furthermore, we implemented a virtual MiniBaja vehicle to verify the interactivity and effectiveness of this platform.

► We think that a VP platform should consist of multi-disciplinary models not a single one. ► Our dynamic simulation package of mechanical system considering fluid dynamics effects. ► Our package provides interactive control during the simulation process by use of intuitive manipulators.