期刊文献+
共找到208篇文章
< 1 2 11 >
每页显示 20 50 100
IBMSMA: An Indicator-based Multi-swarm Slime Mould Algorithm for Multi-objective Truss Optimization Problems 被引量:2
1
作者 Shihong Yin Qifang Luo Yongquan Zhou 《Journal of Bionic Engineering》 SCIE EI CSCD 2023年第3期1333-1360,共28页
This work proposes an improved multi-objective slime mould algorithm, called IBMSMA, for solving the multi-objective truss optimization problem. In IBMSMA, the chaotic grouping mechanism and dynamic regrouping strateg... This work proposes an improved multi-objective slime mould algorithm, called IBMSMA, for solving the multi-objective truss optimization problem. In IBMSMA, the chaotic grouping mechanism and dynamic regrouping strategy are employed to improve population diversity;the shift density estimation is used to assess the superiority of search agents and to provide selection pressure for population evolution;and the Pareto external archive is utilized to maintain the convergence and distribution of the non-dominated solution set. To evaluate the performance of IBMSMA, it is applied to eight multi-objective truss optimization problems. The results obtained by IBMSMA are compared with other 14 well-known optimization algorithms on hypervolume, inverted generational distance and spacing-to-extent indicators. The Wilcoxon statistical test and Friedman ranking are used for statistical analysis. The results of this study reveal that IBMSMA can find the Pareto front with better convergence and diversity in less time than state-of-the-art algorithms, demonstrating its capability in tackling large-scale engineering design problems. 展开更多
关键词 slime mould algorithm Shift-based density estimation Multi-swarm strategy Multi-objective optimization Truss optimization
在线阅读 下载PDF
Multi-objective process parameter optimization for energy saving in injection molding process 被引量:4
2
作者 Ning-yun LU Gui-xia GONG +1 位作者 Yi YANG Jian-hua LU 《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》 SCIE EI CAS CSCD 2012年第5期382-394,共13页
This paper deals with a multi-objective parameter optimization framework for energy saving in injection molding process.It combines an experimental design by Taguchi's method,a process analysis by analysis of vari... This paper deals with a multi-objective parameter optimization framework for energy saving in injection molding process.It combines an experimental design by Taguchi's method,a process analysis by analysis of variance(ANOVA),a process modeling algorithm by artificial neural network(ANN),and a multi-objective parameter optimization algorithm by genetic algorithm(GA)-based lexicographic method.Local and global Pareto analyses show the trade-off between product quality and energy consumption.The implementation of the proposed framework can reduce the energy consumption significantly in laboratory scale tests,and at the same time,the product quality can meet the pre-determined requirements. 展开更多
关键词 Injection molding process Energy saving Multi-objective optimization Genetic algorithm Lexicographic method
原文传递
A Novel Variable-Fidelity Kriging Surrogate Model Based on Global Optimization for Black-Box Problems
3
作者 Yi Guan Pengpeng Zhi Zhonglai Wang 《Computer Modeling in Engineering & Sciences》 2025年第9期3343-3368,共26页
Variable-fidelity(VF)surrogate models have received increasing attention in engineering design optimization as they can approximate expensive high-fidelity(HF)simulations with reduced computational power.A key challen... Variable-fidelity(VF)surrogate models have received increasing attention in engineering design optimization as they can approximate expensive high-fidelity(HF)simulations with reduced computational power.A key challenge to building a VF model is devising an adaptive model updating strategy that jointly selects additional low-fidelity(LF)and/or HF samples.The additional samples must enhance the model accuracy while maximizing the computational efficiency.We propose ISMA-VFEEI,a global optimization framework that integrates an Improved Slime-Mould Algorithm(ISMA)and a Variable-Fidelity Expected Extension Improvement(VFEEI)learning function to construct a VF surrogate model efficiently.First,A cost-aware VFEEI function guides the adaptive LF/HF sampling by explicitly incorporating evaluation cost and existing sample proximity.Second,ISMA is employed to solve the resulting non-convex optimization problem and identify global optimal infill points for model enhancement.The efficacy of ISMA-VFEEI is demonstrated through six numerical benchmarks and one real-world engineering case study.The engineering case study of a high-speed railway Electric Multiple Unit(EMU),the optimization objective of a sanding device attained a minimum value of 1.546 using only 20 HF evaluations,outperforming all the compared methods. 展开更多
关键词 Global optimization KRIGING variable-fidelity model slime mould algorithm expected improvement
在线阅读 下载PDF
Optimization strategy in end milling process for high speed machining of hardened die/mold steel
4
作者 Ying Tang 《Journal of University of Science and Technology Beijing》 CSCD 2006年第3期240-243,共4页
An optimization strategy for high speed machining of hardened die/mold steel based on machining feature analysis was studied. It is a further extension of the previously presented study on the thermal mechanism of end... An optimization strategy for high speed machining of hardened die/mold steel based on machining feature analysis was studied. It is a further extension of the previously presented study on the thermal mechanism of end milling and constant cutting force control. An objective function concerning machining cost and associated optimization algorithm based on machining time and cutting length calculation was proposed. Constraints to satisfy specific machining strategies when high speed machining the hardened die/mold steel, trochoid tool path pattern in slot end milling to avoid over-heat and feed rate adaptation to avoid over-load, were also discussed. As a case study, the tool selection problem when machining a die part with multiple machining features was investigated. 展开更多
关键词 optimization algorithm hardened die/mold steel machining cost machining feature
在线阅读 下载PDF
Intelligent Slime Mould Optimization with Deep Learning Enabled Traffic Prediction in Smart Cities
5
作者 Manar Ahmed Hamza Hadeel Alsolai +5 位作者 Jaber S.Alzahrani Mohammad Alamgeer Mohamed Mahmoud Sayed Abu Sarwar Zamani Ishfaq Yaseen Abdelwahed Motwakel 《Computers, Materials & Continua》 SCIE EI 2022年第12期6563-6577,共15页
Intelligent Transportation System(ITS)is one of the revolutionary technologies in smart cities that helps in reducing traffic congestion and enhancing traffic quality.With the help of big data and communication techno... Intelligent Transportation System(ITS)is one of the revolutionary technologies in smart cities that helps in reducing traffic congestion and enhancing traffic quality.With the help of big data and communication technologies,ITS offers real-time investigation and highly-effective traffic management.Traffic Flow Prediction(TFP)is a vital element in smart city management and is used to forecast the upcoming traffic conditions on transportation network based on past data.Neural Network(NN)and Machine Learning(ML)models are widely utilized in resolving real-time issues since these methods are capable of dealing with adaptive data over a period of time.Deep Learning(DL)is a kind of ML technique which yields effective performance on data classification and prediction tasks.With this motivation,the current study introduces a novel Slime Mould Optimization(SMO)model with Bidirectional Gated Recurrent Unit(BiGRU)model for Traffic Prediction(SMOBGRU-TP)in smart cities.Initially,data preprocessing is performed to normalize the input data in the range of[0,1]using minmax normalization approach.Besides,BiGRUmodel is employed for effective forecasting of traffic in smart cities.Moreover,the novelty of the work lies in using SMO algorithm to effectively adjust the hyperparameters of BiGRU method.The proposed SMOBGRU-TP model was experimentally validated and the simulation results established the model’s superior performance in terms of prediction compared to existing techniques. 展开更多
关键词 Smart cities traffic flow prediction slime mould optimization algorithm deep learning intelligent models
在线阅读 下载PDF
Boosting Kernel Search Optimizer with Slime Mould Foraging Behavior for Combined Economic Emission Dispatch Problems 被引量:2
6
作者 Ruyi Dong Lixun Sun +3 位作者 Long Ma Ali Asghar Heidari Xinsen Zhou Huiling Chen 《Journal of Bionic Engineering》 SCIE EI CSCD 2023年第6期2863-2895,共33页
Reducing pollutant emissions from electricity production in the power system positively impacts the control of greenhouse gas emissions.Boosting kernel search optimizer(BKSO)is introduced in this research to solve the... Reducing pollutant emissions from electricity production in the power system positively impacts the control of greenhouse gas emissions.Boosting kernel search optimizer(BKSO)is introduced in this research to solve the combined economic emission dispatch(CEED)problem.Inspired by the foraging behavior in the slime mould algorithm(SMA),the kernel matrix of the kernel search optimizer(KSO)is intensified.The proposed BKSO is superior to the standard KSO in terms of exploitation ability,robustness,and convergence rate.The CEC2013 test function is used to assess the improved KSO's performance and compared to 11 well-known optimization algorithms.BKSO performs better in statistical results and convergence curves.At the same time,BKSO achieves better fuel costs and fewer pollution emissions by testing with four real CEED cases,and the Pareto solution obtained is also better than other MAs.Based on the experimental results,BKSO has better performance than other comparable MAs and can provide more economical,robust,and cleaner solutions to CEED problems. 展开更多
关键词 Combined economic emission dispatch Kernel search optimization slime mould algorithm Valve point effect Greenhouse gases
在线阅读 下载PDF
An Improved Elite Slime Mould Algorithm for Engineering Design 被引量:1
7
作者 Li Yuan Jianping Ji +3 位作者 Xuegong Liu Tong Liu Huiling Chen Deng Chen 《Computer Modeling in Engineering & Sciences》 SCIE EI 2023年第10期415-454,共40页
The Swarm intelligence algorithm is a very prevalent field in which some scholars have made outstanding achievements.As a representative,Slime mould algorithm(SMA)is widely used because of its superior initial perform... The Swarm intelligence algorithm is a very prevalent field in which some scholars have made outstanding achievements.As a representative,Slime mould algorithm(SMA)is widely used because of its superior initial performance.Therefore,this paper focuses on the improvement of the SMA and the mitigation of its stagnation problems.For this aim,the structure of SMA is adjusted to develop the efficiency of the original method.As a stochastic optimizer,SMA mainly stimulates the behavior of slime mold in nature.For the harmony of the exploration and exploitation of SMA,the paper proposed an enhanced algorithm of SMA called ECSMA,in which two mechanisms are embedded into the structure:elite strategy,and chaotic stochastic strategy.The details of the original SMA and the two introduced strategies are given in this paper.Then,the advantages of the improved SMA through mechanism comparison,balance-diversity analysis,and contrasts with other counterparts are validated.The experimental results demonstrate that both mechanisms have a significant enhancing effect on SMA.Also,SMA is applied to four structural design issues of the welded beam design problem,PV design problem,I-beam design problem,and cantilever beam design problem with excellent results. 展开更多
关键词 slime mould algorithm metaheuristic algorithm continuous optimization chaos random strategy engineering design
在线阅读 下载PDF
A Multi-objective Optimal Approach to Automated Construction of Sacrificial Multi-piece Molds
8
作者 王会凤 周雄辉 陈巍 《Journal of Shanghai Jiaotong university(Science)》 EI 2008年第5期542-546,共5页
Sacrificial multi-piece molds can be used for producing complex parts. To obtain the optimal design of molds automatically, a multi-objective optimal approach is proposed. Mold pieces number, material utilization and ... Sacrificial multi-piece molds can be used for producing complex parts. To obtain the optimal design of molds automatically, a multi-objective optimal approach is proposed. Mold pieces number, material utilization and partitioning area are taken as the objective functions, and the machinability of each mold piece is taken as constraint condition. Genetic algorithm (GA) is adopted to realize global optimization of partitioning process. Each mold piece in optimal scheme can be manufactured by milling and drilling operations, which reduce the tooling cost and shorten product cycle obviously. Using the proposed approach, mold design can be significantly automated for making complex parts. 展开更多
关键词 sacrificial multi-piece molds multi-objective optimization MACHINABILITY genetic algorithm (GA)
原文传递
基于多策略融合哈里斯鹰算法的多无人机协同路径规划方法
9
作者 鲍刚 袁豪 +2 位作者 周冉冉 陶长河 杨代强 《兵器装备工程学报》 北大核心 2026年第2期267-278,共12页
针对多无人机协同路径规划以及传统哈里斯鹰优化算法存在稳定性差、容易陷入局部最优的不足等问题,提出一种基于多策略融合哈里斯鹰优化算法(MIHHO)的多无人机协同路径规划方法。综合考虑多无人机飞行成本以及其性能约束和多机协同约束... 针对多无人机协同路径规划以及传统哈里斯鹰优化算法存在稳定性差、容易陷入局部最优的不足等问题,提出一种基于多策略融合哈里斯鹰优化算法(MIHHO)的多无人机协同路径规划方法。综合考虑多无人机飞行成本以及其性能约束和多机协同约束,建立多无人机协同路径规划模型。在哈里斯鹰优化算法的基础上,使用复合混沌佳点集策略增加种群的多样性并扩大搜索范围。在探索阶段引入改进的黏菌位置更新策略降低算法随机性,增强算法的搜索能力。采用自适应混合变异策略加强算法摆脱局部最优解的能力。仿真实验表明:所提MIHHO算法具有更好的稳定性和收敛精度,在多无人机协同路径规划问题中能够为每架无人机规划出满足约束且路径长度更短、成本更低的飞行路径。 展开更多
关键词 多无人机 路径规划 哈里斯鹰优化算法 复合混沌佳点集 黏菌位置更新 自适应混合变异
在线阅读 下载PDF
基于机器学习的HTPB推进剂配方燃速预测与智能设计
10
作者 陈少臣 徐鹏程 +5 位作者 赵向阳 葛志强 高素琪 彭君晟 王晓晨 马煜 《固体火箭技术》 北大核心 2026年第1期91-101,共11页
采用机器学习(ML)方法结合智能优化算法,开展了端羟基聚丁二烯(HTPB)推进剂配方的燃速性能预测与智能设计,以提升HTPB推进剂配方的设计效率。首先,使用140个HTPB推进剂配方样本训练和评估深度神经网络(DNN)模型以预测燃速,并与随机森林... 采用机器学习(ML)方法结合智能优化算法,开展了端羟基聚丁二烯(HTPB)推进剂配方的燃速性能预测与智能设计,以提升HTPB推进剂配方的设计效率。首先,使用140个HTPB推进剂配方样本训练和评估深度神经网络(DNN)模型以预测燃速,并与随机森林回归(RFR)、梯度提升回归(GBR)和高斯过程回归(GPR)模型进行对比。随后,使用置换特征重要度和沙普利加性解释方法计算DNN模型的特征变量重要度,获取能够对燃速产生重要影响的输入特征变量。最后,在不同工作温度(T:20.0~33.8℃)和工作压强(P:4~17 MPa)下设定多个燃速目标,使用黏菌算法(SMA)优化DNN模型,获得燃速满足要求时的配方组成数据,从而完成配方优化设计工作。结果表明,DNN模型在训练集、测试集上的决定系数均超过了0.99,预测精确度良好且优于RFR、GBR和GPR模型;特征变量重要度分析显示,提升Al含量可增大燃速,而提升HTPB含量则会降低燃速;通过SMA算法优化DNN模型,在不同T、P下成功获取了燃速满足不同要求(最大值、目标值)的配方组成数据,验证了ML模型结合智能优化算法设计配方的可行性。 展开更多
关键词 HTPB推进剂 燃速 深度神经网络 黏菌算法 配方优化
在线阅读 下载PDF
基于修正高斯模型的油气站场泄漏源反演技术研究
11
作者 蔡双军 高满仓 +3 位作者 董立翔 于方涌 蒋玉卓 梁昌晶 《石油化工自动化》 2026年第1期60-64,共5页
为提高油气站场泄漏源的位置和泄漏流量的识别能力,综合粒子回弹和地表粗糙度修正了高斯模型,从初始化种群和更新位置改进黏菌算法(ISMA),将修正高斯模型和ISMA算法相结合,用于泄漏源反演模型的构建和求解,并结合现场实例进行了分析和... 为提高油气站场泄漏源的位置和泄漏流量的识别能力,综合粒子回弹和地表粗糙度修正了高斯模型,从初始化种群和更新位置改进黏菌算法(ISMA),将修正高斯模型和ISMA算法相结合,用于泄漏源反演模型的构建和求解,并结合现场实例进行了分析和验证。结果表明:修正高斯模型的浓度预测与实测数据吻合度优于经典模型,ISMA算法各项指标均优于传统算法和单项改进算法;ISMA算法在不同气象条件下均表现出良好的鲁棒性,中性大气条件下精度最高。研究结果为油气站场泄漏应急响应提供了高效、精准的反演技术方案。 展开更多
关键词 高斯模型 油气站场 泄漏源 反演技术 黏菌算法
在线阅读 下载PDF
基于智能制造技术的模具设计优化研究
12
作者 周孝林 《模具制造》 2026年第2期38-40,共3页
围绕模具设计优化的必要性及应用智能制造技术的可能性,探讨了模具设计过程中存在的问题与挑战,并明确指出了优化设计的迫切需求。通过概述智能制造技术的进步及其在模具设计中的实际应用,提出了一系列基于优化算法的设计方法,这些方法... 围绕模具设计优化的必要性及应用智能制造技术的可能性,探讨了模具设计过程中存在的问题与挑战,并明确指出了优化设计的迫切需求。通过概述智能制造技术的进步及其在模具设计中的实际应用,提出了一系列基于优化算法的设计方法,这些方法包括但不限于算法选择、参数调整及工艺流程优化等。 展开更多
关键词 智能制造技术 模具设计 优化算法 工艺流程优化 效率提升 成本降低
在线阅读 下载PDF
A hybrid genetic slime mould algorithm for parameter optimization of field-road trajectory segmentation models 被引量:1
13
作者 Jiawen Pan Caicong Wu Weixin Zhai 《Information Processing in Agriculture》 CSCD 2024年第4期590-602,共13页
Field-road trajectory segmentation(FRTS)is a critical step in the processing of agricultural machinery trajectory data.This study presents a generalized optimization framework based on metaheuristic algorithms(MAs)to ... Field-road trajectory segmentation(FRTS)is a critical step in the processing of agricultural machinery trajectory data.This study presents a generalized optimization framework based on metaheuristic algorithms(MAs)to increase the accuracy of the field-road trajectory segmentation model.The MA optimization process is used in this framework to precisely and quickly identify the parameters of the FRTS model.It is difficult to solve the parameter optimization problem with basic metaheuristic algorithms without falling into local optima due to their insufficient performance.This study therefore combines a genetic algorithm(GA)with a slime mould algorithm(SMA)to propose a novel enhanced hybrid algorithm(GASMA);the algorithm has superior global search capability due to the implicit parallelism of the GA,and the oscillation concentration mechanism of the SMA is used to enhance the algorithm’s local search capability.To maintain the balance between the two capacities,a nonlinear parameter management technique is developed that adaptively modifies the algorithm’s computational process based on the fitness distribution deviation of the population.Experiments were conducted on real agricultural trajectory datasets with various sample frequencies,and the proposed algorithm was compared with existing methods to validate its efficiency.According to the experimental data,the optimized model produced better results.The proposed approach provides an automatic and accurate method for determining the optimal parameter configurations of FRTS model instances,where the parameter optimization solution is not confined to a single specified procedure and can be addressed by a variety of metaheuristic algorithms. 展开更多
关键词 Field-road segmentation Parameter optimization Metaheuristic algorithm Genetic algorithm slime mould algorithm
原文传递
Realization of an optimized cylindrical uniform magnetic field coil via flexible printed circuit technology
14
作者 A-Hui Zhao Yong-Le Zhang +5 位作者 Yue-Yue Liang Yi Zhang Jun-Jun Zha Dao-Rong Rui Xiao-Qiang Zhang Kang Yang 《Chinese Physics B》 SCIE EI CAS CSCD 2024年第12期242-248,共7页
The design and fabrication method of magnetic field coils with high uniformity is essential for atomic magnetometers.In this paper,a novel design strategy for cylindrical uniform coils is first proposed,which combines... The design and fabrication method of magnetic field coils with high uniformity is essential for atomic magnetometers.In this paper,a novel design strategy for cylindrical uniform coils is first proposed,which combines the target-field method(TFM)with an optimized slime mold algorithm(SMA)to determine optimal structure parameters.Then,the realization method for the designed cylindrical coil by using the flexible printed circuit(FPC)technology is presented.Compared with traditional fabrication methods,this method has advantages in excellent flexibility and bending property,making the coils easier to be arranged in limited space.Moreover,the manufacturing process of the FPC technology via a specific cylindrical uniform magnetic field coil is discussed in detail,and the successfully realized coil is well tested in a verification system.By comparing the uniformity performance of the experimental coil with the simulation one,the effectiveness of the FPC technology in producing cylindrical coils has been well validated. 展开更多
关键词 uniform magnetic field coil optimized target field method slime mold algorithm FPC technology
原文传递
Optimal Implementation of Photovoltaic and Battery Energy Storage in Distribution Networks
15
作者 Hussein Abdel-Mawgoud Salah Kamel +2 位作者 Hegazy Rezk Tahir Khurshaid Sang-Bong Rhee 《Computers, Materials & Continua》 SCIE EI 2021年第11期1463-1481,共19页
Recently,implementation of Battery Energy Storage(BES)with photovoltaic(PV)array in distribution networks is becoming very popular in overall the world.Integrating PV alone in distribution networks generates variable ... Recently,implementation of Battery Energy Storage(BES)with photovoltaic(PV)array in distribution networks is becoming very popular in overall the world.Integrating PV alone in distribution networks generates variable output power during 24-hours as it depends on variable natural source.PV can be able to generate constant output power during 24-hours by installing BES with it.Therefore,this paper presents a new application of a recent metaheuristic algorithm,called Slime Mould Algorithm(SMA),to determine the best size,and location of photovoltaic alone or with battery energy storage in the radial distribution system(RDS).This algorithm is modeled from the behavior of SMA in nature.During the optimization process,the total active power loss during 24-hours is used as an objective function considering the equality and inequality constraints.In addition,the presented function is based on the probabilistic for PV output and different types of system load.The candidate buses for integrating PV and BES in the distribution network are determined by the real power loss sensitivity factor(PLSF).IEEE 69-bus RDS with different types of loads is used as a test system.The effectiveness of SMA is validated by comparing its results with those obtained by other well-known optimization algorithms. 展开更多
关键词 slime mould algorithm optimization distribution networks renewable energy UNCERTAINTY
在线阅读 下载PDF
Optimal Deep Transfer Learning Based Colorectal Cancer Detection and Classification Model
16
作者 Mahmoud Ragab Maged Mostafa Mahmoud +2 位作者 Amer H.Asseri Hani Choudhry Haitham A.Yacoub 《Computers, Materials & Continua》 SCIE EI 2023年第2期3279-3295,共17页
Colorectal carcinoma(CRC)is one such dispersed cancer globally and also prominent one in causing cancer-based death.Conventionally,pathologists execute CRC diagnosis through visible scrutinizing under the microscope t... Colorectal carcinoma(CRC)is one such dispersed cancer globally and also prominent one in causing cancer-based death.Conventionally,pathologists execute CRC diagnosis through visible scrutinizing under the microscope the resected tissue samples,stained and fixed through Haematoxylin and Eosin(H&E).The advancement of graphical processing systems has resulted in high potentiality for deep learning(DL)techniques in interpretating visual anatomy from high resolution medical images.This study develops a slime mould algorithm with deep transfer learning enabled colorectal cancer detection and classification(SMADTL-CCDC)algorithm.The presented SMADTL-CCDC technique intends to appropriately recognize the occurrence of colorectal cancer.To accomplish this,the SMADTLCCDC model initially undergoes pre-processing to improve the input image quality.In addition,a dense-EfficientNet technique was employed to extract feature vectors from the pre-processed images.Moreover,SMA with Discrete Hopfield neural network(DHNN)method was applied for the recognition and classification of colorectal cancer.The utilization of SMA assists in appropriately selecting the parameters involved in the DHNN approach.A wide range of experiments was implemented on benchmark datasets to assess the classification performance.A comprehensive comparative study highlighted the better performance of the SMADTL-CDC model over the recent approaches. 展开更多
关键词 Colorectal cancer deep transfer learning slime mould algorithm hyperparameter optimization biomedical imaging
在线阅读 下载PDF
考虑多场景充电需求预测的电动汽车充电站规划 被引量:7
17
作者 罗平 杨泽喆 +3 位作者 张嘉昊 杨晴 吕强 吴秋轩 《高电压技术》 北大核心 2025年第1期368-378,I0040-I0044,共16页
电动汽车(electric vehicle,EV)数量增加和续航能力增强使得EV-交通网-电网间的耦合更加复杂,如何准确描述复杂耦合情况下EV的充电需求,平衡充电站运营商和EV用户利益,是EV充电站规划须考虑的问题。为此,首先采用蒙特卡洛法得到典型场... 电动汽车(electric vehicle,EV)数量增加和续航能力增强使得EV-交通网-电网间的耦合更加复杂,如何准确描述复杂耦合情况下EV的充电需求,平衡充电站运营商和EV用户利益,是EV充电站规划须考虑的问题。为此,首先采用蒙特卡洛法得到典型场景下规划区内每台EV的充电需求,将不同道路节点各时段的充电电量聚类到对应的聚类中心节点,并利用高斯混合模型拟合得到其概率密度函数。然后,建立综合考虑充电站和用户利益的EV充电站规划双层优化模型,基于复杂网络理论和电压敏感系数指标分别从交通网和电网的角度筛选备选充电站节点,并采用黏菌优化算法对其进行求解。最后,以245节点路网和IEEE 30节点电网构成的耦合网络为例,对比结果验证了所提规划方法既能保留EV充电需求的时空分布特点,又有利于充电站和用户的双赢。 展开更多
关键词 EV 充电需求 分时聚类 双层优化 充电站规划 黏菌优化算法
原文传递
基于源荷协同的热电联产机组负荷优化分配 被引量:4
18
作者 李杰 胡勇 +4 位作者 张语珊 邓丹 梁璐 曾德良 刘吉臻 《热力发电》 北大核心 2025年第1期46-55,共10页
热电厂传统供热方式能源利用效率低,为深度挖掘热电联产机组节能潜力,提出一种综合考虑热负荷侧和热源侧的热电联产机组源荷协同负荷优化分配模型。在负荷侧考虑气象扰动建立了修正的室外温度-热负荷预测模型,热源侧建立了热电联产机组... 热电厂传统供热方式能源利用效率低,为深度挖掘热电联产机组节能潜力,提出一种综合考虑热负荷侧和热源侧的热电联产机组源荷协同负荷优化分配模型。在负荷侧考虑气象扰动建立了修正的室外温度-热负荷预测模型,热源侧建立了热电联产机组能效变工况模型;以全部供热机组发电煤耗率最低为目标构建源-荷协同的多机组优化调度模型;最后在由6台热电联产机组和2组加热器组成的热网供热场景开展仿真验证。仿真结果表明,基于热负荷预测值的源荷协同热电联产机组负荷优化分配方法可以有效降低供热期内机组总煤耗量,相比传统分配方法,典型尖峰供暖期1天内热电厂煤耗量可以减少214.56 t。所提负荷优化分配方法有助于提高热电厂运行经济性,具有一定实际应用价值。 展开更多
关键词 热电联产 热负荷预测 源荷协同 黏菌算法 负荷优化分配
在线阅读 下载PDF
基于优选模型和灰狼算法的注塑工艺参数优化 被引量:1
19
作者 林峰 孙永华 +2 位作者 李国琳 李西兵 连灿鑫 《塑料》 北大核心 2025年第1期100-107,共8页
采用Moldflow软件对食品保鲜盒盖的注塑成型过程进行模拟分析,目的是通过优化注塑工艺参数,最大限度地减小产品的体积收缩率,从而提高产品质量。采用筛选试验设计的方法,确定对注塑成型过程影响较显著的参数。然后,构建多个近似模型,并... 采用Moldflow软件对食品保鲜盒盖的注塑成型过程进行模拟分析,目的是通过优化注塑工艺参数,最大限度地减小产品的体积收缩率,从而提高产品质量。采用筛选试验设计的方法,确定对注塑成型过程影响较显著的参数。然后,构建多个近似模型,并对这些模型进行细致的比较分析,筛选出性能最佳的模型。最后,利用灰狼优化算法对最优模型进行参数优化,得到最优注塑工艺参数组合,并进行模拟验证和实际验证。结果表明,采用优化后的注塑工艺参数组合制备的产品的体积收缩率显著减小,由初始的5.837%下降至4.01%,下降了31.3%,证明了结合计算机模拟、更优的模型和智能优化算法在注塑工艺优化中具有有效性及较好的应用潜力。 展开更多
关键词 注塑工艺参数 筛选试验设计 中心复合试验 最优拉丁超立方抽样 灰狼优化算法
原文传递
基于AVMD与Teager能量算子的风电机组故障诊断方法 被引量:1
20
作者 时培明 伊思颖 +2 位作者 张慧超 范雅斐 韩东颖 《振动.测试与诊断》 北大核心 2025年第2期390-397,418,共9页
为解决变分模态分解(variational mode decomposition,简称VMD)在噪声情况下提取风电机组故障特征时因参数设置的人为经验不足而带来的误差问题及耗费时间的问题,提出一种基于自适应变分模态分解(adaptive variational mode decompositi... 为解决变分模态分解(variational mode decomposition,简称VMD)在噪声情况下提取风电机组故障特征时因参数设置的人为经验不足而带来的误差问题及耗费时间的问题,提出一种基于自适应变分模态分解(adaptive variational mode decomposition,简称AVMD)算法的风电机组故障诊断方法。首先,将包络熵-峭度-互信息准则(envelope entropy,kurtosis and mutual information,简称EKM)作为黏菌算法(slime mold algorithm,简称SMA)的适应度函数来寻找最优解,并按照最优解对故障信号进行分解;其次,计算每个固有模态函数分量(inherent modal function,简称IMF)的峭度和与原信号的互信息,选择具有故障特征的分量进行重构;最后,通过Teager能量算子解调来识别风电机组故障特征频率。仿真信号和实际风电机组故障信号表明,所提方法能够找到故障频率及其倍频,验证了其在风电机组故障诊断领域中的有效性。 展开更多
关键词 自适应变分模态分解 黏菌算法 包络熵-峭度-互信息准则 TEAGER能量算子
在线阅读 下载PDF
上一页 1 2 11 下一页 到第
使用帮助 返回顶部