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Shutian LIU,Quhao LI,Wenjiong CHEN,Liyong TONG,Gengdong CHENG
《机械工程前沿(英文)》 2015年 第10卷 第2期 页码 126-137 doi: 10.1007/s11465-015-0340-3
Additive manufacturing (AM) technologies, such as selective laser sintering (SLS) and fused deposition modeling (FDM), have become the powerful tools for direct manufacturing of complex parts. This breakthrough in manufacturing technology makes the fabrication of new geometrical features and multiple materials possible. Past researches on designs and design methods often focused on how to obtain desired functional performance of the structures or parts, specific manufacturing capabilities as well as manufacturing constraints of AM were neglected. However, the inherent constraints in AM processes should be taken into account in design process. In this paper, the enclosed voids, one type of manufacturing constraints of AM, are investigated. In mathematics, enclosed voids restriction expressed as the solid structure is simply-connected. We propose an equivalent description of simply-connected constraint for avoiding enclosed voids in structures, named as virtual temperature method (VTM). In this method, suppose that the voids in structure are filled with a virtual heating material with high heat conductivity and solid areas are filled with another virtual material with low heat conductivity. Once the enclosed voids exist in structure, the maximum temperature value of structure will be very high. Based upon this method, the simply-connected constraint is equivalent to maximum temperature constraint. And this method can be easily used to formulate the simply-connected constraint in topology optimization. The effectiveness of this description method is illustrated by several examples. Based upon topology optimization, an example of 3D cantilever beam is used to illustrate the trade-off between manufacturability and functionality. Moreover, the three optimized structures are fabricated by FDM technology to indicate further the necessity of considering the simply-connected constraint in design phase for AM.
关键词: additive manufacturing topology optimization manufacturability constraints design for additive manufacturing simply-connected constraint
Robust isogeometric topology optimization for piezoelectric actuators with uniform manufacturability
《机械工程前沿(英文)》 2022年 第17卷 第2期 doi: 10.1007/s11465-022-0683-5
关键词: piezoelectric actuator isogeometric topology optimization uniform manufacturability robust formulation density distribution function
Analysis of inventory level under procurement constraints in supply chain
CHANG Guangshu
《机械工程前沿(英文)》 2007年 第2卷 第3期 页码 361-363 doi: 10.1007/s11465-007-0063-1
关键词: supply efficient reduction system expectation procurement
《化学科学与工程前沿(英文)》 2022年 第16卷 第2期 页码 183-197 doi: 10.1007/s11705-021-2073-7
关键词: machine learning flowsheet simulations constraints exploration
《工程管理前沿(英文)》 页码 143-157 doi: 10.1007/s42524-022-0236-y
关键词: sustainable supply chain customer requirement resilience efficiency customer satisfaction budget constraint
《环境科学与工程前沿(英文)》 2022年 第16卷 第2期 doi: 10.1007/s11783-021-1459-6
• Quantification of efficiency and fairness of abatement allocation are optimized.
关键词: Pollutant emission reduction allocation Emission reduction measures Total abatement cost Economic efficiency Abatement space
GUAN Zailin, PENG Yunfang, MA Li, ZHANG Chaoyong, LI Peigen
《机械工程前沿(英文)》 2008年 第3卷 第4期 页码 454-461 doi: 10.1007/s11465-008-0083-5
关键词: appropriate management technology scheduling technology different
《工程管理前沿(英文)》 页码 67-81 doi: 10.1007/s42524-022-0240-2
关键词: logistics network design post-disruption response strategy two-stage stochastic programming conditional value at risk robust constraint
Cong-ying Cai, Xiao-lan Yao,yaoxiaolan@bit.edu.cn
《信息与电子工程前沿(英文)》 2020年 第21卷 第10期 页码 1413-1534 doi: 10.1631/FITEE.1900586
Izabela NIELSEN,Robert WÓJCIK,Grzegorz BOCEWICZ,Zbigniew BANASZAK
《信息与电子工程前沿(英文)》 2016年 第17卷 第4期 页码 338-347 doi: 10.1631/FITEE.1500359
关键词: Automated guided vehicles (AGVs) Scheduling Multimodal process Fuzzy constraints Optimization
Mohammad Sadegh ES-HAGHI, Aydin SHISHEGARAN, Timon RABCZUK
《结构与土木工程前沿(英文)》 2020年 第14卷 第5期 页码 1110-1130 doi: 10.1007/s11709-020-0643-2
关键词: optimization steel frame Asymmetric Genetic Algorithm constraints of ultimate load constraints of serviceability limits penalty function
采用嵌入时空距离的混合蚁群算法求解一类受限车辆路径问题 Research Article
冯振辉1,2,肖人彬1,3
《信息与电子工程前沿(英文)》 2023年 第24卷 第7期 页码 1062-1079 doi: 10.1631/FITEE.2200585
Quanxiao FANG, Liwang MA, Lajpat Rai AHUJA, Thomas James TROUT, Robert Wayne MALONE, Huihui ZHANG, Dongwei GUI, Qiang YU
《农业科学与工程前沿(英文)》 2017年 第4卷 第2期 页码 172-184 doi: 10.15302/J-FASE-2017139
关键词: RZWQM ET-based irrigation schedule maize water constrains
Planning projects with scarce resources: Yesterday, today and tomorrow’s research challenges
Mario VANHOUCKE
《工程管理前沿(英文)》 2018年 第5卷 第2期 页码 133-149 doi: 10.15302/J-FEM-2018088
关键词: project management project scheduling resource constraints PERT/CPM RCPSP
李伯衡
《中国工程科学》 2003年 第5卷 第9期 页码 7-12
我们只有一个地球,为了中华民族可持续发展,保护耕地就是保护我们的生命线;人多地少、环境污染是制约我国土地利用可持续发展的主要因素;利用遥感技术对耕地进行动态监测,强化基本农田的管理,实现园林化和生态优化,努力实现耕地总量动态平衡是土地利用可持续发展的雄伟目标。
标题 作者 时间 类型 操作
An identification method for enclosed voids restriction in manufacturability design for additive manufacturing
Shutian LIU,Quhao LI,Wenjiong CHEN,Liyong TONG,Gengdong CHENG
期刊论文
Robust isogeometric topology optimization for piezoelectric actuators with uniform manufacturability
期刊论文
models to explore the solution space of large nonlinear systems underlying flowsheet simulations with constraints
期刊论文
Resilience strategies for sustainable supply chains under budget constraints in the post COVID-19 era
期刊论文
emission reduction targets with minimum abatement costs: An enterprise-level allocation method with constraints
期刊论文
Operation and control of flow manufacturing based on constraints management for high-mix/low-volume production
GUAN Zailin, PENG Yunfang, MA Li, ZHANG Chaoyong, LI Peigen
期刊论文
Two-stage stochastic programming with robust constraints for the logistics network post-disruption response
期刊论文
Trajectory optimization with constraints for alpine skiers based on multi-phase nonlinear optimal control
Cong-ying Cai, Xiao-lan Yao,yaoxiaolan@bit.edu.cn
期刊论文
Multimodal processes optimization subject to fuzzy operation time constraints: declarative modeling approach
Izabela NIELSEN,Robert WÓJCIK,Grzegorz BOCEWICZ,Zbigniew BANASZAK
期刊论文
Evaluation of a novel Asymmetric Genetic Algorithm to optimize the structural design of 3D regular and irregular steel frames
Mohammad Sadegh ES-HAGHI, Aydin SHISHEGARAN, Timon RABCZUK
期刊论文
Long-term simulation of growth stage-based irrigation scheduling in maize under various water constraints
Quanxiao FANG, Liwang MA, Lajpat Rai AHUJA, Thomas James TROUT, Robert Wayne MALONE, Huihui ZHANG, Dongwei GUI, Qiang YU
期刊论文
Planning projects with scarce resources: Yesterday, today and tomorrow’s research challenges
Mario VANHOUCKE
期刊论文