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Understanding object motion
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DOI：10.1016/S0262-8856(98)00070-5.png)
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摘要
En 中文
Many types of common objects, such as tools and vehicles, usually move in simple ways when they are wielded or driven: the natural axes of the object tend to remain aligned with the local trihedron defined by the object's trajectory. Based on this observation we use a model called Frenet-Serret motion which corresponds to the motion of a moving trihedron along a space curve. Knowing how the Frenet-Serret frame is changing relative to the observer gives us essential information for understanding the object's motion. This is illustrated here for four examples, involving tools (a wrench and a saw) and vehicles (an accelerating van, a turning taxi). (C) 1998 Elsevier Science B.V. All rights reserved.
Keyword:
object motion
Frenet-Serret motion
moving trihedron
tool motion
vehicle motion
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