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Keywords: genetic algorithms
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Journal Articles
Journal:
Journal of Mechanical Design
Publisher: ASME
Article Type: Research-Article
J. Mech. Des. February 2014, 136(2): 021004.
Paper No: MD-12-1456
Published Online: December 11, 2013
... in automotive applications), certain assumptions can be made about the performance of a monolithic structure that favor the adoption of a two-stage approach that decouples the base topology and joint allocation problems. A multi-objective genetic algorithm (GA) is used throughout the studies in this paper...
Journal Articles
Journal:
Journal of Mechanical Design
Publisher: ASME
Article Type: Research-Article
J. Mech. Des. January 2014, 136(1): 011008.
Paper No: MD-13-1180
Published Online: November 7, 2013
... of objectives and constraints, while maintaining a reasonable number of design variables that is independent from the mesh size. A hybrid genetic algorithm (GA) is then used for solving the optimization problem(s). An example problem of a short cantilever is studied under various settings of the KLS parameters...
Journal Articles
Journal:
Journal of Mechanical Design
Publisher: ASME
Article Type: Research Papers
J. Mech. Des. January 2012, 134(1): 011001.
Published Online: January 4, 2012
... approximation) and has been demonstrated in the literature to often exhibit better performance than any of the individual surrogates. This paper presents a Multi-Scenario Co-evolutionary Genetic Algorithm (MSCGA) for design optimization via EOS. MSCGA simultaneously evolves multiple populations in a multi...
Journal Articles
Journal:
Journal of Mechanical Design
Publisher: ASME
Article Type: Research Papers
J. Mech. Des. November 2011, 133(11): 111007.
Published Online: November 11, 2011
... are all binary, and every design cell is either solid or void to prevent gray cell problem that is usually caused by intermediate material states. Local stress constraint is directly imposed on each analysis cell to make the synthesized compliant mechanism safe. Genetic algorithm is used to search...
Journal Articles
Journal:
Journal of Mechanical Design
Publisher: ASME
Article Type: Research Papers
J. Mech. Des. July 2011, 133(7): 071008.
Published Online: July 18, 2011
...Mian Li Although Genetic Algorithms (GAs) and Multi-Objective Genetic Algorithms (MOGAs) have been widely used in engineering design optimization, the important challenge still faced by researchers in using these methods is their high computational cost due to the population-based nature...
Journal Articles
Journal:
Journal of Mechanical Design
Publisher: ASME
Article Type: Research Papers
J. Mech. Des. June 2011, 133(6): 061004.
Published Online: June 15, 2011
..., the mathematical model of deformed limacon gears with dissymmetrical transmission ratio in one period is established and the kinematic formula of the serial mechanism is presented for optimization by a modified genetic algorithm. Here, a computer program is developed for optimizing the gear linkage mechanism...
Journal Articles
Journal:
Journal of Mechanical Design
Publisher: ASME
Article Type: Research Papers
J. Mech. Des. January 2011, 133(1): 011008.
Published Online: January 6, 2011
... domain, which enhances the ability to represent complex structural geometry observed in real-world products. A multiobjective genetic algorithm is used to obtain Pareto optimal solutions that exhibit trade-offs among stiffness, weight, manufacturability, and assembleability. Case studies...
Journal Articles
Journal:
Journal of Mechanical Design
Publisher: ASME
Article Type: Research Papers
J. Mech. Des. January 2011, 133(1): 011005.
Published Online: January 3, 2011
... kinematic performance can be expressed. An adaptation of the method using a multiobjective Pareto front is also illustrated. The optimization result for a spherical bevel-geared mechanism using a genetic algorithm demonstrated that the proposed method effectively improves the quality of the optimum solution...
Journal Articles
Journal:
Journal of Mechanical Design
Publisher: ASME
Article Type: Research Papers
J. Mech. Des. November 2010, 132(11): 111003.
Published Online: October 20, 2010
.... , and Min , S. , 2005 , “ A Note on Hinge-Free Topology Design Using the Special Triangulation of Design Elements ,” Commun. Numer. Methods Eng. 1069-8299 , 21 , pp. 701 – 710 . 10.1002/cnm.785 Goldberg , D. E. , 1989 , Genetic Algorithms in Search, Optimization, and Machine Learning...
Journal Articles
Journal:
Journal of Mechanical Design
Publisher: ASME
Article Type: Research Papers
J. Mech. Des. September 2010, 132(9): 091012.
Published Online: September 17, 2010
... and reliability using a genetic algorithm. Then, a multiattribute utility function is employed to maximize utility across different segments of the market and also across different lifecycles within each segment. Post-optimal studies help determine feasibility of component redesign in addition to parts...
Journal Articles
Journal:
Journal of Mechanical Design
Publisher: ASME
Article Type: Research Papers
J. Mech. Des. September 2010, 132(9): 091008.
Published Online: September 16, 2010
... is the calculation of the so-called system cumulative probability of failure. For that, we use an equivalent time-invariant “composite” limit state and a niching genetic algorithm with lazy learning metamodeling. A two-mass vibratory system example and an automotive roller clutch example demonstrate the calculation...
Journal Articles
Journal:
Journal of Mechanical Design
Publisher: ASME
Article Type: Research Papers
J. Mech. Des. June 2010, 132(6): 061001.
Published Online: May 20, 2010
... is implemented successfully using a genetic algorithm. In traditional optimization methods, the multiple objectives are usually transformed into a single objective through mathematical operations. By using a set of weighting coefficients, the multi-objective problems can be expressed in the following...
Journal Articles
Journal:
Journal of Mechanical Design
Publisher: ASME
Article Type: Research Papers
J. Mech. Des. May 2010, 132(5): 051001.
Published Online: April 29, 2010
... representable by a graph grammar schema. The method is stochastic and incorporates distinct phases for modifying the topologies and modifying parameters stored within topologies. Thus far, with abovementioned sheet metal problem, ( TP ) 2 had proven better than genetic algorithm in terms of the quality...
Journal Articles
Journal:
Journal of Mechanical Design
Publisher: ASME
Article Type: Research Papers
J. Mech. Des. March 2010, 132(3): 031007.
Published Online: March 22, 2010
...N. F. Wang; K. Tai This paper demonstrates the design of compliant grip-and-move manipulators by structural optimization using genetic algorithms. The manipulator is composed of two compliant mechanisms (each with two degrees of freedom) that work like two fingers so that the manipulator can grip...
Journal Articles
Journal:
Journal of Mechanical Design
Publisher: ASME
Article Type: Technical Briefs
J. Mech. Des. January 2010, 132(1): 014501.
Published Online: December 21, 2009
... exist multiple design solutions. To overcome this problem, a nonlinear approach using a genetic algorithm is used to search for an optimal solution. Finally, a design simulation is performed on an example MRR, and the results show the effectiveness of the proposed design method. A modular...
Journal Articles
Journal:
Journal of Mechanical Design
Publisher: ASME
Article Type: Research Papers
J. Mech. Des. November 2009, 131(11): 111001.
Published Online: October 6, 2009
... of the location, orientation, and size of actuators (and sensors) concurrent with the compliant transmission topology, and (2) the implementation of controllability and observability concepts (both arising from consideration of control) in compliant systems design. The methods used include genetic algorithms...
Journal Articles
Journal:
Journal of Mechanical Design
Publisher: ASME
Article Type: Technical Briefs
J. Mech. Des. October 2009, 131(10): 104501.
Published Online: September 3, 2009
... are substituted by groups of fewer elements called equivalent parametric macroelements (EPMs). The EPM optimum parameters are obtained using equivalence criteria based on elastic energy and inertial properties. The optimization process is performed using nonlinear least square minimization and genetic algorithms...
Journal Articles
Journal:
Journal of Mechanical Design
Publisher: ASME
Article Type: Research Papers
J. Mech. Des. September 2009, 131(9): 091007.
Published Online: August 18, 2009
... and maximum induced stresses. A shear lag model of the smart plate structure is created, and the optimization problem is solved using an evolutionary multi-objective optimization algorithm: nondominated sorting genetic algorithm-II. Pareto-optimal solutions are obtained for different case studies. Further...
Journal Articles
Journal:
Journal of Mechanical Design
Publisher: ASME
Article Type: Research Papers
J. Mech. Des. July 2009, 131(7): 071009.
Published Online: June 25, 2009
...Jing Li; Zissimos P. Mourelatos A time-dependent reliability analysis method is presented for dynamic systems under uncertainty using a niching genetic algorithm (GA). The system response is modeled as a parametric random process. A double-loop optimization algorithm is used. The inner loop...
Journal Articles
Journal:
Journal of Mechanical Design
Publisher: ASME
Article Type: Research Papers
J. Mech. Des. July 2009, 131(7): 071007.
Published Online: June 24, 2009
..., for which genetic algorithms are employed for configuration evaluation. A case study of truck cab family design in an automobile company demonstrates that design project modularization enhances the coordination of multiple design projects of product families and contributes to the achievement of economy...
Topics:
Design
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