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Article
Feature extraction from freeform molded parts for moldability analysis
In the design of plastic injection molds, the depressions and protrusions (DP) preventing the removal of molded part from mold are referred to as undercuts. This paper describes an approach to recognize DP fea...
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Article
Accuracy analysis of a parallel positioning mechanism with actuation redundancy
A forward accuracy analysis method based on Lie-group theory and screw theory is proposed to analyze the pose error of parallel mechanisms with actuation redundancy. Both the input uncertainty and components s...
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Article
Open AccessHierarchical Optimization of Landing Performance for Lander with Adaptive Landing Gear
A parameterized dynamics analysis model of legged lander with adaptive landing gear was established. Based on the analysis model, the landing performances under various landing conditions were analyzed by the ...
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Article
Accuracy analysis and error compensation for Tricept machine tool under load
This paper provides an efficient way to estimate the accuracy performance of the Tricept machine tool under load. Both joint clearances and link flexibility are considered. Clearances of the spherical joints a...