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Ant colony optimization for assembly sequence planning based on parameters optimization
Zunpu HAN, Yong WANG, De TIAN
《机械工程前沿(英文)》 2021年 第16卷 第2期 页码 393-409 doi: 10.1007/s11465-020-0613-3
关键词: assembly sequence planning ant colony optimization symbiotic organisms search parameter optimization
Assembly design system based on engineering connection
Wensheng YIN
《机械工程前沿(英文)》 2016年 第11卷 第4期 页码 423-432 doi: 10.1007/s11465-016-0382-1
An assembly design system is an important part of computer-aided design systems, which are important tools for realizing product concept design. The traditional assembly design system does not record the connection information of production on the engineering layer; consequently, the upstream design idea cannot be fully used in the downstream design. An assembly design model based on the relationship of engineering connection is presented. In this model, all nodes are divided into two categories: The component and the connection. Moreover, the product is constructed on the basis of the connection relationship of the components. The model is an And/Or graph and has the ability to record all assembly schemes. This model records only the connection information that has engineering application value in the product design. In addition, this model can significantly reduce the number of combinations, and is very favorable for the assembly sequence planning in the downstream. The system contains a connection knowledge system that can be mapped to the connection node, and the connection knowledge obtained in practice can be returned to the knowledge system. Finally, VC++6.0 is used to develop a prototype system called Connect-based Assembly Planning (CAP). The relationship between the CAP system and the commercial assembly design system is also established.
关键词: product design assembly design engineering connection assembly sequence planning
莫茜,罗毅
《中国工程科学》 2008年 第10卷 第11期 页码 65-68
利用petri网直观图形化特点建立装配模型,并根据petri网原理得出可行装配序列。影响可行装配序列的大部分因素是定性的、模糊的、非数值的,将装配序列看作灰色系统,采用灰色聚类决策方法对可行序列进行评估。分析了影响因素的灰色分类并且研究了灰色聚类决策步骤。实例分析表明,该方法为petri网原理所得可行序列进行正确的评估并且得出决策向量。
A novel task-oriented framework for dual-arm robotic assembly task
《机械工程前沿(英文)》 2021年 第16卷 第3期 页码 528-545 doi: 10.1007/s11465-021-0638-2
关键词: dual-arm assembly AI reasoning intelligent system task-oriented motion planning visual perception
Baoxi WANG, Zailin GUAN, Yarong CHEN, Xinyu SHAO, Ming JIN, Chaoyong ZHANG
《机械工程前沿(英文)》 2013年 第8卷 第2期 页码 137-145 doi: 10.1007/s11465-013-0251-0
For assemble-to-order enterprises, both order scheduling and mixed-model sequencing need to be taken into consideration in the formulation of order-oriented assembly plan. First, determining production priority for the received orders, and then conducting assembly sequence to the mixed-model products in each order. Order scheduling is aimed to ensure order delivery with the optimization goal of minimal total overdue time, while product sequencing is aimed to minimize the makespan so as to meet the requirement on completion time of the order. In the end, the paper establishes a mixed integer programming model based on an industrial case, and makes programming calculation with Xpress-MP to accomplish an order-oriented assembly plan conforming to actual production.
关键词: mixed-model assembly line assemble-to-order order scheduling sequencing
Assembly of biosynthetic pathways in
Lidan Ye,Xiaomei Lv,Hongwei Yu
《化学科学与工程前沿(英文)》 2017年 第11卷 第1期 页码 126-132 doi: 10.1007/s11705-016-1597-8
关键词: pathway assembly toolbox reiterative recombination S. cerevisiae biosynthesis
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.
Jie Zhou, Xuewen Du, Jiaqing Wang, Natsuko Yamagata, Bing Xu
《化学科学与工程前沿(英文)》 2017年 第11卷 第4期 页码 509-515 doi: 10.1007/s11705-017-1613-7
关键词: enzyme-instructed self-assembly phosphoserine phosphatase supramolecular hydrogel
面向低压电器的协同装配方法 Research Article
吕焕培1,2,张立彬1,谭大鹏1,胥芳1
《信息与电子工程前沿(英文)》 2023年 第24卷 第6期 页码 890-905 doi: 10.1631/FITEE.2100423
《环境科学与工程前沿(英文)》 2022年 第16卷 第6期 doi: 10.1007/s11783-021-1513-4
• Season and landform influenced spatiotemporal patterns of abundant and rare taxa.
关键词: Rare taxa Biogeography Community assembly Bacterioplankton The Yangtze River
Research on constraint-based virtual assembly technologies
YANG Rundang, WU Dianliang, FAN Xiumin, YAN Juanqi
《机械工程前沿(英文)》 2007年 第2卷 第2期 页码 243-249 doi: 10.1007/s11465-007-0043-5
关键词: movement DOF recognition algorithm assembly orientation combination
Pankaj SHARMA,Ajai JAIN
《机械工程前沿(英文)》 2014年 第9卷 第4期 页码 380-389 doi: 10.1007/s11465-014-0315-9
Stochastic dynamic job shop scheduling problem with consideration of sequence-dependent setup times are among the most difficult classes of scheduling problems. This paper assesses the performance of nine dispatching rules in such shop from makespan, mean flow time, maximum flow time, mean tardiness, maximum tardiness, number of tardy jobs, total setups and mean setup time performance measures viewpoint. A discrete event simulation model of a stochastic dynamic job shop manufacturing system is developed for investigation purpose. Nine dispatching rules identified from literature are incorporated in the simulation model. The simulation experiments are conducted under due date tightness factor of 3, shop utilization percentage of 90 % and setup times less than processing times. Results indicate that shortest setup time (SIMSET) rule provides the best performance for mean flow time and number of tardy jobs measures. The job with similar setup and modified earliest due date (JMEDD) rule provides the best performance for makespan, maximum flow time, mean tardiness, maximum tardiness, total setups and mean setup time measures.
关键词: scheduling stochastic dynamic job shop sequence-dependent setup times dispatching rule simulation
null
《医学前沿(英文)》 2018年 第12卷 第1期 页码 23-33 doi: 10.1007/s11684-017-0607-7
Two decades have passed since the first bacterial whole-genome sequencing, which provides new opportunity for microbial genome. Consequently, considerable genetic diversity encoded by bacterial genomes and among the strains in the same species has been revealed. In recent years, genome sequencing techniques and bioinformatics have developed rapidly, which has resulted in transformation and expedited the application of strategy and methodology for bacterial genome comparison used in dissection of infectious disease epidemics. Bacterial whole-genome sequencing and bioinformatic computing allow genotyping to satisfy the requirements of epidemiological study in disease control. In this review, we outline the significance and summarize the roles of bacterial genome sequencing in the context of bacterial disease control and prevention. We discuss the applications of bacterial genome sequencing in outbreak detection, source tracing, transmission mode discovery, and new epidemic clone identification. Wide applications of genome sequencing and data sharing in infectious disease surveillance networks will considerably promote outbreak detection and early warning to prevent the dissemination of bacterial diseases.
关键词: genome sequencing genomic epidemiology bacteria surveillance infectious diseases
《化学科学与工程前沿(英文)》 2022年 第16卷 第7期 页码 1101-1113 doi: 10.1007/s11705-021-2095-1
关键词: Janus nanoparticles surfactant double phase inversion self-assembly enhanced oil recovery
A survey on assembly lines and its types
Ullah SAIF,Zailin GUAN,Baoxi WANG,Jahanzeb MIRZA,Shiyang HUANG
《机械工程前沿(英文)》 2014年 第9卷 第2期 页码 95-105 doi: 10.1007/s11465-014-0302-1
Assembly lines are useful for mass production of standard as well as customized products. Line balancing is an important issue, in this regard an optimal or near optimal balance can provide a fruitful savings in the initial cost and also in the running cost of such production systems. A survey of different problems in different types of assembly lines and some of the critical and on going research areas are highlighted here. The provided research information is momentous for the research community in assembly line area to proceed further in the presented issues of assembly lines.
标题 作者 时间 类型 操作
Ant colony optimization for assembly sequence planning based on parameters optimization
Zunpu HAN, Yong WANG, De TIAN
期刊论文
An assemble-to-order production planning with the integration of order scheduling and mixed-model sequencing
Baoxi WANG, Zailin GUAN, Yarong CHEN, Xinyu SHAO, Ming JIN, Chaoyong ZHANG
期刊论文
Pareto lexicographic α-robust approach and its application in robust multi objective assembly line balancing
null
期刊论文
Enzyme-instructed self-assembly of peptides containing phosphoserine to form supramolecular hydrogels
Jie Zhou, Xuewen Du, Jiaqing Wang, Natsuko Yamagata, Bing Xu
期刊论文
Distinct community assembly processes underlie significant spatiotemporal dynamics of abundant and rare
期刊论文
Research on constraint-based virtual assembly technologies
YANG Rundang, WU Dianliang, FAN Xiumin, YAN Juanqi
期刊论文
Analysis of dispatching rules in a stochastic dynamic job shop manufacturing system with sequence-dependent
Pankaj SHARMA,Ajai JAIN
期刊论文
Transforming bacterial disease surveillance and investigation using whole-genome sequence to probe the
null
期刊论文
The construction of pseudo-Janus silica/surfactant assembly and their application to stabilize Pickering
期刊论文