Development of a methodology for pseudo-rigid-body models of compliant segments with inserts, and experimental validation

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Kuber, Raghvendra Sharadchandra
Missouri University of Science and Technology
Compliant mechanisms; Mechanical Engineering
thesis / dissertation description
"Compliant mechanisms have shown a great deal of potential in the last few decades in providing better solutions to design problems with numerous benefits; however, their use has been limited due to current challenges in the material selection. With ever increasing focus on the applications of compliant mechanisms, it is necessary to find alternatives to the existing materials and methods of prototyping. The purpose of this work is to develop a methodology for pseudo-rigid-body models of compliant segments with compliant inserts, comprised of a resilient material placed between the layers of a softer material, to alleviate any creep and strength issues associated with the softer material. The pseudo-rigid-body models (PRBMs) for such beams subjected to various boundary conditions are presented and validated by means of analytical and experimental methods. Pseudo-rigid-body models are used to devise simple methods of large deflection analysis, and help expedite the compliant mechanism design process. A method to improve the accuracy of the PRBM of a fixed-free beam by evaluating more accurate values of the stiffness coefficient is also presented"--Abstract, Page iii.