A Contribution to the Computer Assisted, Kinematics, Kinetostatics, and Dynamic Analysis of the Inline and Offset types of the Crank-and-Connecting Rod Mechanism
Tonye K. Jack
Tonye K. Jack, Teaches, Department of Mechanical Engineering classes Port Harcourt, Rivers State, Nigeria.
Manuscript received on 21 November 2013 | Revised Manuscript received on 28 November 2013 | Manuscript published on 30 November 2013 | PP: 55-65 | Volume-2 Issue-5, November 2013 | Retrieval Number: E0872112513/2013©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: In this paper a simple spreadsheet program method of calculations for the complete kinematics, kinetostatics, and dynamic analysis of the inline and offset types of the crank-and-connecting-rod mechanism is presented. Being a single degree-of-freedom mechanism as defined by its crank angle, the program can be used to answer “what-if” scenario questions through tables and graphical plots to evaluate variations of key motion and loading parameters with changes in the crank angle. The program also allows for the conduct of parameter studies in selecting optimum crank-and-connecting-rod linkage dimensions and speeds. Extreme positions are accounted for in the inline model using the Ching-U and Price model equations. An equation derived for the offset model, estimates and predicts relative crank angle position, and relative extremum maximum velocity, to within 93-to-96 % of actual absolute extremum maximum piston velocity guided by applications of the extreme value principle.
Keywords: Crank-and-Connecting-Rod Mechanism, Inline Slider-Crank, Inverse Dynamics, Kinematics of Mechanisms, Kinetostatics, Mechanisms, Mechanism Synthesis, Offset Slider-Crank, Slider-Crank Mechanism.
Scope of the Article: Mechanical Design