Please use this identifier to cite or link to this item: http://theses.ncl.ac.uk/jspui/handle/10443/836
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dc.contributor.authorWalker, Michael John-
dc.date.accessioned2010-07-02T09:13:49Z-
dc.date.available2010-07-02T09:13:49Z-
dc.date.issued1979-
dc.identifier.urihttp://hdl.handle.net/10443/836-
dc.descriptionPhD Thesisen_US
dc.description.abstractThis thesis concerns the synthesis of counterweights for balancing the forces, moments and driving torque generated by planar linkage mechanisms. Part I reports the development of theory and an associated procedure by which multi-link, multi-degree-of-freedom planar linkage mechanisms may be fully force-balanced without reference to the kinematic equations of motion. The procedure includes rules to determine whether a particular linkage may be fully force-balanced, and if so how many counterweights are needed, together with a means of selecting an appropriate counterweight set. Part II reports the development and use of a general computer-based approach to synthesizing counterweights by means of numerical minimization. The illustrative computer program described can be used to improve the unbalanced forces, moment and/or driving torque of two types of planar linkages, a four-bar linkage and a particular Watt's six-bar chain. Quantitative criteria for evaluating the improvements are considered in some detail. The worth of the two approaches is examined theoretically and experimentally in the case of a particular Watt's six-bar chain. Part III contains the overall discussions on and conclusions to the work of this thesis, along with suggestions for further work.en_US
dc.description.sponsorshipScience Research Councilen_US
dc.language.isoenen_US
dc.publisherNewcastle Universityen_US
dc.titleBalancing planar linkage mechanismsen_US
dc.typeThesisen_US
Appears in Collections:School of Mechanical and Systems Engineering

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