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Volume : III, Issue : XI, December - 2013 A Generalized Approach For Providing Effective Tolerance On A Link In Planer Mechanism Considering Pin-joint Tolerances S. D. Thakre And C. C. Handa Published By : Laxmi Book Publication Abstract : Mechanisms are designed for desired output or required performance for specified input. Error in link
length and joint clearance results in variation in the performance of mechanism. Machines are consisting of
mechanism for their successful operations. The link length inaccuracies are due to no. of factors like machining
errors deflection of link, clearances in joint etc. Due to manufacturing defects & clearances, the link length varies.
This variation in link length causes variations in designed performance of mechanism. In this paper a simple class I
four bar mechanism is analyzed, assuming that links are rigid. Design engineer wants tight tolerances for accurate
performance; while on other hand manufacturing engineer prefer loose tolerances. This paper proposes an
approach to identify the effect of change in link length on the performance of the mechanism, using relative velocity
method. Keywords : Article : Cite This Article : S. D. Thakre And C. C. Handa , (2013). A Generalized Approach For Providing Effective Tolerance On A Link In Planer Mechanism Considering Pin-joint Tolerances. Indian Streams Research Journal, Vol. III, Issue. XI, http://oldisrj.lbp.world/UploadedData/3371.pdf References : - P . S. Thakare, Dr. C. C. Handa, “A Generalized Approach For Sensitive Analysis Of Four-Bar Mechanism and Identifying Sensitive Links T olerance Using Relative V elocity Method” International Journal of Applied Research in Mechanical Engineering, V ol.1, 2011
- A. K. Kapse, Dr. C. C. Handa,” A Generalized Approach For Measurement Of Performance Of Planar Mechanism Using Relative V elocity Method” International Journal of Engineering Research and Applications, V ol. 2, Issue4, July-August 2012, pp.1871-1573
- C. C. Handa, H. T . Thorat, “AGeneralized Approach in Anticipating the Effect of link length T olerances on p e r f o r ma n c e o f Me c h a n i s m u s i n g I n s t a n t a n e o u s c e n t e r ” , Ad v a n c e s i n Ma c h i n e s a n d Me c h a n i s ms ; Proceeding 9th NaCoMM 1999,, December 16-17,1999
- M. Y . Lee, A. G. Erdman, S. Faik, “A Generalized Performance Sensitivity Synthesis Methodology for Four Bar Mechanisms”, Mechanism and Machine Theory vol. 34, pp 1127-1139, 1999
- C. C. Handa, H. T. Thorat, “A Generalized Approach in Identifying Control Link T olerances and its Effect on Design T olerances of Mechanisms Using Instantaneous Center”, NaCoMM 2003
- P . L. Bhagwat & Dr. B. M. Domkundwar, “Sensitivity Analysis by Graphical Approach.” Pune.A. M. V aidya And P . M. Padole, “A Performance Evaluation of Four bar Mechanisms Considering Flexibility of Links and Joint Stiffness” The Open Mechanical Engineering Journal, 2010, 4, pp 16-28
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