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This paper presents a novel proximity query (PQ) approach capable to detect the collision and calculate the minimal Euclidean distance between two non-convex objects in 3D, namely the robot and the environment. Such approaches are often considered as computationally demanding problems, but are of importance to many applications such as online simulation of haptic feedback and robot collision-free...
Virtual Reality and Distributed Simulation are two pop technologies used in military training and simulation. Routine way to implement an HLA application is by calling RTI APIs, but it is always fussy and fallible. In this paper, VR-Link is taken as a development tool for HLA and Vega is chosen as a graphic engine. The flow chart and the implementation of the HLA-based training application are described...
The conflict between structure design and casting process of castings has been studied to make them have good casting structure feasibility. In this paper, it takes the use of structure and process integrated design based on simulation technology to resolve the conflict. Casting structure feasibility of aluminum axle box for the high speed train application, as an example, was analyzed by this means.
A new method for free-form deformation on large-scale models is proposed. The original mesh is deformed by using a control mesh which is the simplification of the original one. All the points on the original one would be parameterized by the blending local coordinate system based on the triangle it corresponds and the neighbors of the triangle. The control mesh could be edited directly and also could...
Simplification is a hot topic in the field of mesh modeling. Most of the algorithms are progressive, and generating the intermediate models makes the algorithms less efficient. Vertex clustering is generally adopted to reduce the sample points, but the error control is hard to achieve. This paper presents a novel fast simplification algorithm which is based on octree with quadratic approximation....
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