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- W2560331314 abstract "The finite mobility of a mechanism is reflected by its configuration space (c-space), and the mobility analysis aims at determining this c-space. Crucial for the computational mobility analysis is an adequate formulation of the constraints. For lower pair linkages an analytic formulation is the product-of-exponential (POE) formula in terms of the screw systems of the lower pair joints. In other words, the screw coordinates of a lower pair joint serve as canonical coordinates on the corresponding motion subgroup. For such linkages, a computational approach to the local mobility analysis has been reported recently. The approach is applicable to general multi-loop linkages. Higher pairs do not generate motion subgroups so that their motion cannot be expressed in terms of screw coordinates. Hence their kinematics cannot be expressed in terms of a POE, and there is no efficient and generally applicable computational method for the mobility analysis. In this paper a formulation of higher-order constraints for mechanisms with higher pair joints is proposed making use of the result for lower pair linkages. The method is applicable to mechanisms where each fundamental loop comprises no more than one higher pair, which covers the majority of mechanisms. Based on this, a computational algorithm is introduced that allows mobility determination. As for lower pair linkages, this algorithm only requires simple algebraic operations." @default.
- W2560331314 created "2016-12-16" @default.
- W2560331314 creator A5057420930 @default.
- W2560331314 date "2016-08-21" @default.
- W2560331314 modified "2023-09-27" @default.
- W2560331314 title "Computational Local Mobility Analysis of Mechanisms With Higher Kinematic Pairs" @default.
- W2560331314 doi "https://doi.org/10.1115/detc2016-60267" @default.
- W2560331314 hasPublicationYear "2016" @default.
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