Showing papers on "Revolute joint published in 1979"
TL;DR: In this paper, an extension to the theory of force balancing planar linkage mechanisms is presented, which incorporates a technique for checking whether a linkage can be fully force-balanced using counterweights alone, and a formula that defines the minimum number of counterweights needed for a full force-balance.
15 citations
TL;DR: In this article, a graphical method is developed for expressing solutions to all possible revolute dyad, three finitely separated position synthesis problems, where any two rotational displacements are prescribed.
Abstract: A graphical method is developed for expressing solutions to all possible revolute dyad, three finitely separated position synthesis problems, where any two rotational displacements are prescribed. Also, cases are discussed where two positions and one velocity are prescribed. The three-precision-point solutions are shown to be represented by circular loci of fixed and moving dyad pivots that are derived from an analytical treatment based on bilinear transformation of the synthesis equations. The superposition of two three-position dyad problems with two common positions yields points on the four-precision-point Burmester curves satisfying both problems. A new alternative explanation for the classical Burmester curve construction is offered. Regions of the plane are found where dyad moving pivots cannot exist for a given problem. Computer graphics output is used to demonstrate several typical solutions.
6 citations
TL;DR: In this article, a numerical computer method using spatial finite line elements for the determination of buckling loads of three-dimensional framed systems having complex boundary conditions is presented, where a joint at end of an element experiences three rotational and three linear displacements.
6 citations
TL;DR: Representations are developed for kinematic chains in terms of the incidence between the component links both at pairs and at joints.
Abstract: Representations are developed for kinematic chains in terms of the incidence between the component links both at pairs and at joints. Coplanar kinematic chains with only revolute pairs are considered in this paper.
2 citations