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林剑艺,程春田,顾妍平,武新宇
《中国工程科学》 2007年 第9卷 第10期 页码 80-82
提出求解水库优化调度问题的Pareto强度值SCE-UA算法,该方法将水库优化调度的约束优化问题转换成两个目标函数的无约束优化问题,一个为原问题的目标函数,另一个为违反约束条件的程度函数;对上述两个目标函数组成的向量个体,利用Pareto 优于关系和个体Pareto 强度值概念,实现个体的优劣比较和群体的优劣排序,在此基础上使用 SCE-UA算法求解。
Multi-objective optimization of a hybrid distributed energy system using NSGA-II algorithm
Hongbo REN, Yinlong LU, Qiong WU, Xiu YANG, Aolin ZHOU
《能源前沿(英文)》 2018年 第12卷 第4期 页码 518-528 doi: 10.1007/s11708-018-0594-7
In this paper, a multi-objective optimization model is established for the investment plan and operation management of a hybrid distributed energy system. Considering both economic and environmental benefits, the overall annual cost and emissions of CO2 equivalents are selected as the objective functions to be minimized. In addition, relevant constraints are included to guarantee that the optimized system is reliable to satisfy the energy demands. To solve the optimization model, the non-dominated sorting generic algorithm II (NSGA-II) is employed to derive a set of non-dominated Pareto solutions. The diversity of Pareto solutions is conserved by a crowding distance operator, and the best compromised Pareto solution is determined based on the fuzzy set theory. As an illustrative example, a hotel building is selected for study to verify the effectiveness of the optimization model and the solving algorithm. The results obtained from the numerical study indicate that the NSGA-II results in more diversified Pareto solutions and the fuzzy set theory picks out a better combination of device capacities with reasonable operating strategies.
关键词: multi-objective optimization hybrid distributed energy system non-dominated sorting generic algorithm II fuzzy set theory Pareto optimal solution
Yue CHEN; Rong XU; Hao WU; Tao SHENG
《结构与土木工程前沿(英文)》 2022年 第16卷 第9期 页码 1089-1103 doi: 10.1007/s11709-022-0851-z
关键词: pin-supported rocking wall reinforced concrete frame seismic retrofit stiffness demand drift concentration factor multi-objective design genetic algorithm Pareto optimal solution
谢涛,陈火旺
《中国工程科学》 2002年 第4卷 第2期 页码 59-68
M. NAZEMIZADEH, H. N. RAHIMI, K. AMINI KHOIY
《机械工程前沿(英文)》 2012年 第7卷 第1期 页码 23-28 doi: 10.1007/s11465-012-0304-9
This paper presents an optimal control strategy for optimal trajectory planning of mobile robots by considering nonlinear dynamic model and nonholonomic constraints of the system. The nonholonomic constraints of the system are introduced by a nonintegrable set of differential equations which represent kinematic restriction on the motion. The Lagrange’s principle is employed to derive the nonlinear equations of the system. Then, the optimal path planning of the mobile robot is formulated as an optimal control problem. To set up the problem, the nonlinear equations of the system are assumed as constraints, and a minimum energy objective function is defined. To solve the problem, an indirect solution of the optimal control method is employed, and conditions of the optimality derived as a set of coupled nonlinear differential equations. The optimality equations are solved numerically, and various simulations are performed for a nonholonomic mobile robot to illustrate effectiveness of the proposed method.
关键词: mobile robot trajectory planning nonlinear dynamic optimal control
Z干扰信道下非正则信号的最佳设计策略 Article
Dan LI, Shan WANG, Fang-lin GU
《信息与电子工程前沿(英文)》 2017年 第18卷 第11期 页码 1900-1912 doi: 10.1631/FITEE.1700030
张钊,裴燕玲,张仁宝
《中国工程科学》 2005年 第7卷 第2期 页码 62-65
动态规划求最优解是一个反向递推的求解过程,以实例为依据,用正向递推的方法求解动态规划的最优值,并推出动态规划的基本方程和密尔顿-雅可比方程,是对动态规划求最优解方法的探讨。利用动态规划的正向递推方法,在应用中可以大大减少计算量,扩大了它的应用范围。
null
《机械工程前沿(英文)》 2014年 第9卷 第3期 页码 257-264 doi: 10.1007/s11465-014-0294-x
Robustness in most of the literature is associated with min-max or min-max regret criteria. However, these criteria of robustness are conservative and therefore recently new criteria called, lexicographic α-robust method has been introduced in literature which defines the robust solution as a set of solutions whose quality or jth largest cost is not worse than the best possible jth largest cost in all scenarios. These criteria might be significant for robust optimization of single objective optimization problems. However, in real optimization problems, two or more than two conflicting objectives are desired to optimize concurrently and solution of multi objective optimization problems exists in the form of a set of solutions called Pareto solutions and from these solutions it might be difficult to decide which Pareto solution can satisfy min-max, min-max regret or lexicographic α-robust criteria by considering multiple objectives simultaneously. Therefore, lexicographic α-robust method which is a recently introduced method in literature is extended in the current research for Pareto solutions. The proposed method called Pareto lexicographic α-robust approach can define Pareto lexicographic α-robust solutions from different scenarios by considering multiple objectives simultaneously. A simple example and an application of the proposed method on a simple problem of multi objective optimization of simple assembly line balancing problem with task time uncertainty is presented to get their robust solutions. The presented method can be significant to implement on different multi objective robust optimization problems containing uncertainty.
A review of optimization modeling and solution methods in renewable energy systems
《工程管理前沿(英文)》 页码 640-671 doi: 10.1007/s42524-023-0271-3
关键词: renewable energy system bibliometrics mathematical programming optimization models solution methods
System-level Pareto frontiers for on-chip thermoelectric coolers
Sevket U. YURUKER, Michael C. FISH, Zhi YANG, Nicholas BALDASARO, Philip BARLETTA, Avram BAR-COHEN, Bao YANG
《能源前沿(英文)》 2018年 第12卷 第1期 页码 109-120 doi: 10.1007/s11708-018-0540-8
关键词: thermoelectric cooling thermal management optimization high flux electronics
Numerical solution, simulation and testing of the thermal dynamic characteristics of ball-screws
XIA Junyong, HU Youmin, WU Bo, SHI Tielin
《机械工程前沿(英文)》 2008年 第3卷 第1期 页码 28-36 doi: 10.1007/s11465-008-0007-4
关键词: numerical solution temperature corresponding temperature distribution end-most ball-screw
Analytical dynamic solution of a flexible cable-suspended manipulator
Mahdi BAMDAD
《机械工程前沿(英文)》 2013年 第8卷 第4期 页码 350-359 doi: 10.1007/s11465-013-0271-9
Cable-suspended manipulators are used in large scale applications with, heavy in weight and long in span cables. It seems impractical to maintain cable assumptions of smaller robots for large scale manipulators. The interactions among the cables, platforms and actuators can fully evaluate the coupled dynamic analysis. The structural flexibility of the cables becomes more pronounced in large manipulators. In this paper, an analytic solution is provided to solve cable vibration. Also, a closed form solution can be adopted to improve the dynamic response to flexibility. The output is provided by the optimal torque generation subject to the actuator limitations in a mechatronic sense. Finally, the performance of the proposed algorithm is examined through simulations.
ZHANG Yuxi, WU Feipeng, LI Miaozhen, WANG Erjian
《化学科学与工程前沿(英文)》 2007年 第1卷 第1期 页码 68-71 doi: 10.1007/s11705-007-0014-8
关键词: aqueous solution homopolyacrylic copolymer solution significant structure presence
Yue’s solution of classical elasticity in
Zhong-qi Quentin YUE
《结构与土木工程前沿(英文)》 2015年 第9卷 第3期 页码 215-249 doi: 10.1007/s11709-015-0298-6
Xiao-Yong WANG
《结构与土木工程前沿(英文)》 2020年 第14卷 第2期 页码 473-486 doi: 10.1007/s11709-020-0608-5
关键词: ternary blended concrete climate change optimal mixture design carbonation chloride ingress
标题 作者 时间 类型 操作
Multi-objective optimization of a hybrid distributed energy system using NSGA-II algorithm
Hongbo REN, Yinlong LU, Qiong WU, Xiu YANG, Aolin ZHOU
期刊论文
A multi-objective design method for seismic retrofitting of existing reinforced concrete frames using pin-supported rocking walls
Yue CHEN; Rong XU; Hao WU; Tao SHENG
期刊论文
Trajectory planning of mobile robots using indirect solution of optimal control method in generalized
M. NAZEMIZADEH, H. N. RAHIMI, K. AMINI KHOIY
期刊论文
Pareto lexicographic α-robust approach and its application in robust multi objective assembly line balancing
null
期刊论文
System-level Pareto frontiers for on-chip thermoelectric coolers
Sevket U. YURUKER, Michael C. FISH, Zhi YANG, Nicholas BALDASARO, Philip BARLETTA, Avram BAR-COHEN, Bao YANG
期刊论文
Numerical solution, simulation and testing of the thermal dynamic characteristics of ball-screws
XIA Junyong, HU Youmin, WU Bo, SHI Tielin
期刊论文
Solution properties and self-association of multi-blocks like copolymer P(AM/AA) prepared by template
ZHANG Yuxi, WU Feipeng, LI Miaozhen, WANG Erjian
期刊论文