Strong, RT & Waldron, KJ 1978, 'JOINT DISPLACEMENTS IN LINKAGE SYNTHESIS SOLUTIONS.', American Society of Mechanical Engineers (Paper), no. 78 -DET-43.
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A comprehensive and unified treatment of the relationship between the displacements, about the joints of a four-bar linkage as it moves through specified design positions is given. The behavior of joint displacements is characteristic of Grashof type, and can be used to help locate solutions of a given type.
Waldron, KJ 1978, 'Location of burmester synthesis solutions with fully rotatable cranks', Mechanism and Machine Theory, vol. 13, no. 2, pp. 125-137.
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A method is developed for locating regions of the Burmester circle-point curve which give the driving cranks of crank-rocker or drag-link linkages when combined with a given driven crank. The technique used is a graphical iteration procedure. When used as suggested convergence is rapid. The technique is compatible with the author's procedure for avoiding solutions requiring branch changes and ensuring correct order of progression through the design positions. © 1978.
Waldron, KJ & Stevensen, EN 1978, 'ELIMINATION OF BRANCH, GRASHOF, AND ORDER DEFECTS IN PATH-ANGLE GENERATION AND FUNCTION GENERATION SYNTHESIS.', American Society of Mechanical Engineers (Paper), no. 78 -DET-16.
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Path-Angle Generation and Function Generation synthesis problems are restated as Plane-Position (or Motion Generation) problems, enabling the use of the classical Burmester technique and recent extensions that permit the avoidance of Branch, Grashof, and Order defects. An example of the solution of a Path-Angle Generation problem is given.
Waldron, KJ & Strong, RT 1978, 'Improved solutions of the branch and order problems of Burmester linkage synthesis', Mechanism and Machine Theory, vol. 13, no. 2, pp. 199-207.
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A method is presented to resolve the ambiguity in Waldron's solution to the order problem of planar Burmester synthesis by inspection of an image pole circle. This replaces the more cumbersome method previously used. Another method is presented to allow the mapping of permissible segments of the circle-point curve, in Waldron's solution to the branch problem by inspection of the subscripts of the Qij, Tij and Uij points. This replaces the much more cumbersome angle sign table previously used. © 1978.