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Evolutionary synthesis of kinematic mechanisms

Hod Lipson
2008 Artificial intelligence for engineering design, analysis and manufacturing  
This paper discusses the application of genetic programming to the synthesis of compound two-dimensional kinematic mechanisms, and benchmarks the results against one of the classical kinematic challenges  ...  of 19th century mechanical design.  ...  Department of Energy Grant DE-FG02-01ER45902.  ... 
doi:10.1017/s0890060408000139 fatcat:ih6ovzziknbifimgipph3oznz4

Matlab�s GA and Optimization Toolbox: A Fourbar Mechanism Application

Lale Canan Dulger, Huseyin Erdogan, Mehmet Erkan Kutuk
2014 International Journal of Intelligent Systems and Applications in Engineering  
This study presents an optimization approach for synthesis of planar mechanisms. A four bar mechanism is chosen for an application example. This mechanism is studied with the constraints assigned.  ...  Performances of both algorithms are then compared in terms of coupler curves precision points. Their use in designing a four bar mechanism is explored for its further use.  ...  The computational synthesis methods are also applied [1, 2, 3] . The science of motion is related with the analysis and synthesis of mechanisms in study of Kinematics.  ... 
doi:10.18201/ijisae.40943 fatcat:deeftezz6vcirfqmafx6ungkfu

CLOUD-BASED EXPERT SYSTEM FOR SYNTHESIS AND EVOLUTIONARY OPTIMIZATION OF PLANAR LINKAGES

Rosen Mitrev, Boris Tudjarov, Todor Todorov
2018 Facta Universitatis. Series: Mechanical Engineering  
The present paper introduces a cloud-based expert system for synthesis and evolutionary optimization of planar linkages.  ...  The analyzed numerical case studies show the applicability of the developed software system for mechanism analysis, synthesis and optimization.  ...  The paper presents a cloud-based expert system for synthesis and evolutionary optimization of planar linkages.  ... 
doi:10.22190/fume180420016m fatcat:fctdhk2ttbcmdbksyh5gu74jvm

Synthesis and analysis of coupler curves with combined planar cam follower mechanisms

US Chavan, SV Joshi
2011 International Journal of Engineering, Science and Technology  
As this mechanism has an ability to provide unlimited variety of output motions. Many works are done on the synthesis of coupler curves or path generation using four bar mechanism.  ...  Further, kinematic simulation of both mechanisms was performed to estimate the error and validate the proposed methodology.  ...  Acknowledgment The author would like to acknowledge the University of Pune, BCUD for financial support. (Grant No: BCUD/OSD/184/09)  ... 
doi:10.4314/ijest.v2i6.63714 fatcat:i52ijhh36zcjhjn6nzncpy6og4

A new approach for the optimal synthesis of four-bar path generator linkages

Neider Nadid Romero, Alexandre Campos, Daniel Martins, Rodrigo S. Vieira
2019 SN Applied Sciences  
In this paper, an optimal synthesis of four-bar path generator, using a robust mathematical formulation is presented.  ...  Natural coordinates are used in order to solve the four-bar mechanism kinematic position analytically and the Hermitian conjugate is used to build a goal function whose range is the real numbers' set.  ...  The proposed procedure can be used for the synthesis of any planar mechanism whose position can be obtained analytically, and using any method of evolutionary optimization. 1} .  ... 
doi:10.1007/s42452-019-1511-3 fatcat:grt42ivejzak3jck6hcees6a2a

Synthesis of dexterity measure of mechanisms by evolution of dissipative system

Grešl M., Šika Z., Valášek M.
2007 Applied and Computational Mechanics  
The paper deals with the new approach of solving traditional kinematical synthesis of mechanisms. The kinematical synthesis is reformulated as nonlinear dynamical problem.  ...  The synthesis process is realized as the time evolution of such system. One of the most important objectives of the machine synthesis is the dexterity measure.  ...  Acknowledgements The authors appreciate the support by the project "Development of methods and tools of computational simulation and its application in engineering" MSM 6860770003.  ... 
doaj:05c6cf278aab46d79c489440ca6669b9 fatcat:i3uop55k5zedrjutj7jwsecfxu

Evolutionary Design of Adjustable Six-Linkage Bar Manufacturing Mechanisms Using Niche Genetic Algorithms

Chiu-Hung Chen, Jyh-Horng Chou
2016 IEEE Access  
This paper studies the optimal synthesis design of adjustable six-linkage mechanisms in metalmold die-casting systems.  ...  INDEX TERMS Adjustable mechanism, evolutionary algorithm, collision-free design.  ...  Therefore, we can analyze the kinematical equations of the mechanism operated in a fixed mode.  ... 
doi:10.1109/access.2016.2597869 fatcat:tthwlwy5mzcxfd5rtkpqdgrvae

Recent development on innovation design of reconfigurable mechanisms in China

Wuxiang Zhang, Shengnan Lu, Xilun Ding
2018 Frontiers of Mechanical Engineering  
Metamorphic and origami-derived mechanisms are two kinds of typical reconfigurable mechanisms, which have attracted increasing attention in the field of mechanisms since they were proposed.  ...  This paper presents an overview of recent developments in innovation design of reconfigurable mechanisms in China, including metamorphic and origami mechanisms and their typical applications.  ...  Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/ licenses/by/4.0/), which permits unrestricted use, distribution  ... 
doi:10.1007/s11465-018-0517-7 fatcat:elqmn2f2yjbr7bafymg7iwi7sm

A Specific Problem of Mechanism Synthesis

J. Buśkiewicz
2014 International Journal of Applied Mechanics and Engineering  
A technique for path synthesis is employed to design a feeder for carrying products between two points.  ...  The feeder is assumed to be a one degree of freedom system of six links connected by means of revolute joints. The mathematical basis of the concept is presented.  ...  The geometry of the feeder driven by a four-bar linkage Description of the synthesis method A four bar linkage is the basic kinematic chain of the feeder.  ... 
doi:10.2478/ijame-2014-0034 fatcat:5en2dwnktvhqncixii3bpt2x4m

IDENTIFICATION OF ISOMORPHISM AND DETECTION OF DISTINCT MECHANISM OF KINEMATIC CHAINS USING INVARIENT LABELING OF LINKS

S.R.Madan .
2014 International Journal of Research in Engineering and Technology  
The problem of isomorphism among kinematic chains and of these derived mechanisms has been a hot area of research being done from last several years.  ...  KCL is proposed as unique identifier for detection of isomorphism among kinematic chains, and also used to find distinct mechanism of a kinematic chain.  ...  INTRODUCTION Structural analysis and synthesis of kinematic chains is tried to be carried out as an important aspect of mechanism design.  ... 
doi:10.15623/ijret.2014.0301004 fatcat:zbzxugrvengvta23pqtvli6vhy

Optimal Spatial Filtering Schemes and Compact Tomography Setups

Mayank Goswami, Snehlata Shakya, Anupam Saxena, Prabhat Munshi
2015 Research in nondestructive evaluation (Print)  
devices, electromechanical systems, kinematic and geometric modeling.  ...  Research and Teaching Interests Compliant mechanisms, structural optimization, bio-inspired design, biomedical devices, design for no/minimal assembly, product design, design theory and automation, assistive  ...  Co-evolutionary Predictors for Kinematic Pose Inference from RGBD Images. ACM Genetic and Evolutionary Computation Conference (GECCO'12). pp. 967-974 C47. Ly, D, L., Saxena, A. and Lipson, H. 2011.  ... 
doi:10.1080/09349847.2015.1060659 fatcat:c5o36ftdwvgmvm7yslwm4tavi4

Improving the design of high speed mechanisms through multi-level kinematic synthesis, dynamic optimization and velocity profiling

Robert M.C. Rayner, M. Necip Sahinkaya, Ben Hicks
2017 Mechanism and Machine Theory  
Acknowledgments The authors acknowledge the support of the Engineering and Physical Sciences Research Council (EPSRC) of the U.K. and the industrial partner ITCM Ltd, Coventry, UK through the EPSRC Industrial  ...  Fig. 1 . 1 Layered design method for kinematic synthesis and optimisation of dynamic performance, A: Kinematic synthesis, B: Kinematic re-synthesis with dynamic performance optimisation, C: Velocity cam  ...  The kinematic synthesis environment For the purpose of this study a mechanism modelling environment based up on constraint reasoning [1] is used for synthesis in Stage A and B2.  ... 
doi:10.1016/j.mechmachtheory.2017.07.022 fatcat:ozquh7xleza65lyjumqezwky2y

Red horizontal branch stars in the Galactic field: A chemical abundance survey

M. Afşar, C. Sneden, B.-Q. Fo, J. Montalbán, A. Noels, V. Van Grootel
2013 EPJ Web of Conferences  
Including both kinematic and evolutionary status information, we conclude that we have five thick disk and 13 thin disk RHB stars in our sample.  ...  The evaluation of effective temperatures, surface gravities and 12 C/ 13 C isotopic ratios together with evolutionary stages of the candidates revealed that 18 out of 76 stars in our sample are probable  ...  Our plan is to collect more data to substantially increase the field RHB sample and to investigate in detail the mechanisms that may lead RHBs to end up in this relatively rare evolutionary state.  ... 
doi:10.1051/epjconf/20134302003 fatcat:pbzm7qup4zfprgj3hik36hn3b4

Page 715 of Astronomy and Astrophysics Vol. 309, Issue 3 [page]

1996 Astronomy and Astrophysics  
The luminosity of the stars is computed using photometric evolutionary synthesis and the dust extinction is modeled by an exponential dust distribu- tion.  ...  But the kinematical evolution of the stars is still controversial.  ... 

The Concept of Synthesis Hinged Mechanisms as a Part of Mechatronic Systems

Alexander Poliakov
2015 Journal of Robotics and Mechanical Engineering Research  
In the new concept of mechanisms synthesis with finite number degrees of freedom, the task of movements planning is one of the most important.  ...  Systemic synthesis of mechanisms mechatronic systems advantageously carried out in parallel with executive bodies movements planning and with the synthesis of control systems.  ...  Acknowledgements This work has been funded by the Ministry of Education and Science of the Russian Federation in the framework of the base part of state order in the field of scientific activity with the  ... 
doi:10.24218/jrmer.2015.08 fatcat:5wvda2zadbhsdaa7ths4mo5hcm
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