Structural and Kinematic Analysis of a Shaper Linkage with Four-Bar Assur Group

Fomin, Alexey; Kiselev, Sergey

doi:10.1007/978-3-319-95630-5_149

Cited by 1 publication

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References 11 publications

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“…It is evident from Figure 10 that the synthesized mechanism keeps the transmission angle within the recommended range while simultaneously improve the overall design of four-bar mechanism to met the desired stroke and time-ratio. More importantly, it should be mentioned now that the genetically obtained synthesis equations of this paper can now be readily employed for the design of any crankrocker mechanism used in real-world practical applications such as the sley drive of weaving machines, 10 the mixer mechanism, 42 the shaper linkage, 43 windshield wiper mechanism, 44 the continuously variable transmission (CVT) system, 45 etc. For instance, the application of the proposed approach for the design of four-bar linkage sley drive mechanisms is elaborated.…”

Section: Resultsmentioning

confidence: 99%

Optimal synthesis of crank-rocker mechanisms with optimum transmission angle for desired stroke and time-ratio using genetic programming

Ahmadi

2022

Advances in Mechanical Engineering

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Dimensional synthesis of crank-rocker mechanisms applied to provide some desired values of stroke and time ratio, is of utmost importance for designing an efficient mechanism. In the synthesis and manufacturing of crank-rocker mechanisms, the designers are further challenged by other design criteria, such as quality of motion. In this study, a novel approach based on genetic programming (GP) is proposed for dimensional synthesis of planar crank-rocker mechanisms with optimum transmission angle over the desired stroke and time-ratio. An analytical approach is elaborated which leads to an interesting relationship of length of the coupler and rocker links. It is, therefore, advised that by adopting equal lengths for coupler link and rocker link, one can guarantee the optimality of the transmission angle’s deviation ([Formula: see text]), ensuring the Grashof condition. Consequently, through an inverse modeling approach, GP method is utilized to construct some explicitly mathematical formulas to represent all the sizes and dimensions of the crank-rocker mechanism based on the any desired values of both stroke and time-ratio. In this way, an input-output data set consisting of all the dimensions and the sizes of the links as the input variables and both the stroke and time-ratio as output variables is first constructed using the pertinent mathematical equations. Indeed, such approach of inverse modeling using GP simplifies greatly the synthesis of the crack-rocker mechanisms for any desired values of both stroke and time-ratio. The proposed approach has been applied for kinematic synthesis of a crank-rocker mechanism. A comparison between the obtained results of this work and the analytic method, clearly illustrates the efficiency of the proposed approach.

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Section: Resultsmentioning

confidence: 99%

Optimal synthesis of crank-rocker mechanisms with optimum transmission angle for desired stroke and time-ratio using genetic programming

Ahmadi

2022

Advances in Mechanical Engineering

View full text Add to dashboard Cite

show abstract

Structural and Kinematic Analysis of a Shaper Linkage with Four-Bar Assur Group

Cited by 1 publication

References 11 publications

Optimal synthesis of crank-rocker mechanisms with optimum transmission angle for desired stroke and time-ratio using genetic programming

Optimal synthesis of crank-rocker mechanisms with optimum transmission angle for desired stroke and time-ratio using genetic programming

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