The synthesis of flexible linkages by balancing the tracer point quasi-static deflections using microprocessor and advanced materials technologies

Abstract The contribution of the quasi-static deformation to the total deviation of the tracer point of a flexible path generator linkage from the desired path may be reduced to zero by replacing one of the normally fixed ground link pivots by a sliding joint whose motion is controlled by a microprocessor. If the resulting output characteristics are still unacceptable to the analyst, the remaining high frequency oscillatory component may be attenuated by redesigning the mechanism links in a modern composite material to nominally generate the output associated with a rigid linked system. Illustrative examples are presented for four bar linkages.

[1]  Arthur G. Erdman,et al.  Finite element approach to mathematical modeling of high-speed elastic linkages , 1978 .

[2]  G. N. Sandor,et al.  A General Method for Kineto-Elastodynamic Analysis and Synthesis of Mechanisms , 1972 .

[3]  A. H. Soni,et al.  Mechanism synthesis and analysis , 1981 .

[4]  Brian S. Thompson.  A survey of analytical path-synthesis techniques for plane mechanisms , 1975 .

[5]  William L. Cleghorn,et al.  Optimum design of high-speed flexible mechanisms , 1981 .

[6]  Brian S. Thompson,et al.  Material selection: An important parameter in the design of high-speed linkages , 1984 .

[7]  D. Tesar,et al.  The analytical and experimental evaluation of vibratory oscillations in realistically proportioned, mechanisms , 1978 .

[8]  W. A. Thornton,et al.  Optimality Criterion Techniques Applied to Mechanical Design , 1978 .

[9]  S. Kalaycioglu,et al.  Determination of the Critical Operating Speeds of Planar Mechanisms by the Finite Element Method Using Planar Actual Line Elements and Lumped Mass Systems , 1979 .

[10]  G. N. Sandor,et al.  A general method of kineto-elastodynamic design of high speed mechanisms , 1973 .

[11]  Ce Zhang,et al.  Optimum Design of Flexible Mechanisms , 1983 .

[12]  G. G. Lowen,et al.  Survey of investigations into the dynamic behavior of mechanisms containing links with distributed mass and elasticity , 1972 .

[13]  R. S. Haines.  On Predicting Vibrations in Realistically Proportioned Linkage Mechanisms , 1981 .