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- W3019570997 abstract "Collision detection is a central task in the simulation of multibody systems. Depending on the description of the geometry, there are many efficient algorithms to address this need. A widespread approach is the common normal concept: potential contact points on opposing surfaces have antiparallel normal vectors. However, this approach leads to implicit equations that require iterative solutions when the geometries are described by implicit functions or the common parameterizations. We introduce the normal parameterization to describe the boundary of a strictly convex object as a function of the orientation of its normal vector. This parameterization depends on a scalar function, the so-called generating potential from which all properties are derived: points on the boundary, continuity/differentiability of the boundary, curvature, offset curves or surfaces. An explicit solution for collisions with a planar counterpart is derived and four iterative algorithms for collision detection between two arbitrary objects with the normal parametrization are compared. The application of this approach for collision detection in multibody models is illustrated in a case study with two ellipsoids and several planes." @default.
- W3019570997 created "2020-05-01" @default.
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- W3019570997 date "2020-09-01" @default.
- W3019570997 modified "2023-10-02" @default.
- W3019570997 title "The normal parameterization and its application to collision detection" @default.
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- W3019570997 doi "https://doi.org/10.1016/j.mechmachtheory.2020.103906" @default.
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