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    Theoretically, the best optimization solution of overall situation can be achieved from the proposed algorithms.
    在理论上,该算法可以获得全局最优解。
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    PDM technology solves the integration of computer islands in an enterprise, and makes the enterprise gain an overall situation excellent.
    PDM解决了企业内计算机应用孤岛的集成,使企业达到全局最优
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    In this paper, the initial value was structured with the random search characters of differential evolution algorithm and every parameter can be optimized with the character that differential evolution algorithm can converge overall optimization on any initial value.
    本文结合差分进化算法的随机搜索特点来构造初始值,并结合差分进化算法对任意初始值均能收敛到全局最优解的特性进行了各参数的优化。
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    Results show that it is featured by advantages such as good convergence at high speed, higher accuracy, better reliability, and simple program construction. It is more practical optimal design method.
    数值计算结果表明,此法不但收敛速度快、精度高、可靠性好,而且还具有程序结构简单,能获得全局最优解等特点,是弹簧优化设计的一种实用方法.
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    The difficulties to seed out on overall optimal solution in the humanmechanics system's multiobjective optimizing are introduced in this paper,and the favorable and unfavorable aspects to overcome the difficult problems by some fields' research fruits are analyzed lastly,the hybridizing tactics to optimize multiobjective problems are suggested,and the concrete algorithms to correspond with them are demonstrated using the design example. 
    介绍了人机系统多目标优化寻求全局最优解的困难,同时分析了某些领域研究成果解决此难题有利和不利的方面.最终提出了多目标全局寻优的杂交策略,并以设计实例演示了与之相应的具体算法.
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In this paper, a new linear programming algorithm of optimization design for cylindrical spiral spring is introduced. The mathematical models of optimization design for the spring is a nonliner programming models. The author converts it into model of linear programming by the aid of a linear conversion. Results show that it is featured by advantages such as good convergence at high speed, higher accuracy, better reliability, and simple program construction. It is more practical optimal design method.

本文给出了圆柱螺旋弹簧优化设计的一种新算法——线性规划算法.圆柱螺旋弹簧优化设计数学模型是一种约束非线性规划模型,经过本文提出的线性变换,该模型可转换成一个纯粹的线性规捌模型.数值计算结果表明,此法不但收敛速度快、精度高、可靠性好,而且还具有程序结构简单,能获得全局最优解等特点,是弹簧优化设计的一种实用方法.

A criterion of the maximum active energy dissipation in active vibration control is pre-sented,by which as a cost function the optimal placement of sensors/actuators can besolved.The Simulated Annealing(SA)algorithm is introduced and improved in order tosolve the problem and obtain the overall optimal solution. As examples,the optimal place-ment of sensors/actuators for a three degrees of freedom of discrete system and a cantileverbeam is numerically analyzed,and a simple control experiment of the beam is carried...

A criterion of the maximum active energy dissipation in active vibration control is pre-sented,by which as a cost function the optimal placement of sensors/actuators can besolved.The Simulated Annealing(SA)algorithm is introduced and improved in order tosolve the problem and obtain the overall optimal solution. As examples,the optimal place-ment of sensors/actuators for a three degrees of freedom of discrete system and a cantileverbeam is numerically analyzed,and a simple control experiment of the beam is carried out.Good agreement between the optimization and the experimental results is found. All of theseshow the feasibility and applicability of the criterion and the SA algorithm developed in this paper.

提出了振动主动控制系统中最大主动阻尼耗能准则,以此准则为目标函数求解检测器和作动器的最优配置问题。为了获得全局最优解,引入了模拟退火(SA)算法,并对其进行了改进,对一离散的三自由度系统和连续梁系统中检测器和作动器的最优配置进行了数值计算和实验验证,计算结果与实验结果的一致性很好,证明了所建立的准则和算法的可行性和实用性。

Taking aim at the phenomena of multiple local extreme values which generally exist in the optimization design of mechnical engineering, a genetic algorithm is introduced to search the global optimal solution. The basic strategy of the genetic algorthm is discussed. The new fitness techniques, the new crossover operator, the new mutation operator and the stopping rules are proposed. Two practical examples in mechanical engineering design are described.

针对机械工程设计中经常遇到的多个局部极值的参数优化设计问题,探索了应用遗传算法求解其全局最优解的途径。文中讨论了遗传算法的基本构造模型,提出了新的适合度技术、新的交叉算子、新的变异算子和算法终止准则。最后,给出了遗传算法在机械工程优化中应用的两个实际算例,算例表明了该方法的有效性

 
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