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ZHANG Shuyou
YI Guodong
XU Xiaofeng
State Key Laboratory of CAD&CG,
Zhejiang University,
Hangzhou 310027, China
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REVERSE DESIGN APPROACH FOR MECHANISM
TRAJECTORY BASED ON CODE-CHAINS MATCHING*
Abstract: Aiming at the problem of
reverse-design of mechanism, a method based on the matching of
trajectory code-chains is presented. The motion trajectory of
mechanism is described with code-chain, which is normalized to
simplify the operation of geometric transformation. The
geometric transformation formulas of scale, mirror and rotation
for trajectory code-chain are defined, and the reverse design
for mechanism trajectory is realized through the analysis and
solution of similarity matching between the desired trajectory
and the predefined trajectory. The algorithm program and
prototype system of reverse design for mechanism trajectory are
developed. Application samples show that the method can break
the restriction of trajectory patterns in matching, meet the
demand of partial matching, and overcome the influence of
geometric transformation of trajectory on the reverse design for
mechanism.
Key words:
Trajectory Code-chain Similarity matching Reverse-design |