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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
Mouth the mirror of lungs: where does the connection lie?
null
《医学前沿(英文)》 2016年 第10卷 第4期 页码 405-409 doi: 10.1007/s11684-016-0476-5
Periodontitis is the chronic destructive disease of the periodontium (Gums) caused by host bacterial interactions. The effect of such host bacterial interactions in oral cavity also evokes a systemic response. Numerous studies have found common mechanisms of destruction for periodontal diseases and other chronic diseases like diabetes mellitus, atherosclerosis, respiratory diseases, and adverse pregnancy outcomes. Oral colonization by respiratory pathogens appears to be a risk factor for development of respiratory diseases and oral interventions aimed at reducing oral bacterial count have resulted in reduced incidence of these reparatory illness. This reflects the importance of oral hygiene among patients with respiratory illness. This review highlights the association between periodontal diseases and respiratory diseases.
关键词: periodontitis respiratory diseases acute pneumonia COPD
Static behavior of planar intersecting CFST connection in diagrid structure
Ling LI, Xianzhong ZHAO, Ke KE
《结构与土木工程前沿(英文)》 2011年 第5卷 第3期 页码 355-365 doi: 10.1007/s11709-011-0125-7
关键词: diagrid structure concrete-filled steel tube planar intersecting connection experimental research mechanism analysis
Hyungjoo CHOI, Husam NAJM
《结构与土木工程前沿(英文)》 2020年 第14卷 第1期 页码 199-214 doi: 10.1007/s11709-019-0592-9
Mohammad Ali NAGHSH, Aydin SHISHEGARAN, Behnam KARAMI, Timon RABCZUK, Arshia SHISHEGARAN, Hamed TAGHAVIZADEH, Mehdi MORADI
《结构与土木工程前沿(英文)》 2021年 第15卷 第1期 页码 194-212 doi: 10.1007/s11709-020-0688-2
关键词: column-tree moment connection Finite element model parametric study fire regression models gene expression programming
Effect of eccentricity in reinforced concrete beam-column-slab connection under cyclic loading
Rooh ULLAH, Amjad NASEER, Muhammad FAHIM, Mohammad ASHRAF, Eid BADSHAH
《结构与土木工程前沿(英文)》 2021年 第15卷 第2期 页码 390-398 doi: 10.1007/s11709-021-0690-3
关键词: corner connection eccentricity strength degradation stiffness degradation energy dissipation performance levels
Hicham SERHOUD, Djilani BENATTOUS
《能源前沿(英文)》 2013年 第7卷 第3期 页码 380-387 doi: 10.1007/s11708-013-0252-z
关键词: brushless doubly-fed generator (BDFG) modeling grid connection control back-to-back pulse-width modulation (PWM) converter wind power generation
刘三江,陈祖志,石坤,李光海
《中国工程科学》 2020年 第22卷 第6期 页码 143-150 doi: 10.15302/J-SSCAE-2020.06.019
特种设备是国民经济建设和社会生活的重要基础设施,在特种设备领域发展智能制造、实现特种设备制造业的转型升 级,是“中国制造 2025”的重要组成部分。本文分析了特种设备的特点及发展现状,梳理了发展特种设备智能制造的需求情况, 提出了推动特种设备制造业由大变强的有效手段及发展思路。研究提出,发展特种设备智能制造的指导思想是采用并联式发 展道路,并行推进特种设备行业工业 2.0、工业 3.0、工业 4.0 的发展;发展重点是产品可追溯、质量管理智能化、动态风险 实时监控。在此基础上,引入智能网联技术思路作为特种设备智能制造的发展路径,分析智能网联的技术内涵,着重从特种 设备智联网构建、智能应用开发两方面提出了基于该路径的特种设备智能制造关键任务,以期为特种设备领域推进智能制造 提供理论参考。
张占奎,石文辉,屈姬贤,白宏
《中国工程科学》 2021年 第23卷 第4期 页码 182-190 doi: 10.15302/J-SSCAE-2021.04.021
海上风电是世界风电未来发展的重要方向,经济高效地解决大规模海上风电并网问题是海上风电建设面临的核心挑战之一。本文总结了世界海上风电的发展现状、我国海上风电发展环境及行业进展,归纳了海上风电的全球性发展趋势;从海上风电场单场典型并网、大规模海上风电集群送出两类典型情景出发,梳理了相关技术特征及其代表性应用。在凝练我国海上风电并网送出面临问题的基础上,提出了我国海上风电并网的整体发展策略,并就两类典型情景的送出方案开展适应性分析和评价。研究建议,摸清资源储量、确定统一规划理念,加强自主创新、突破并网关键技术,完善体制机制、确保高质量发展,加强国际交流、促进国际产业合作,以此谋划和建设一流水平、契合国情的海上风电并网送出工程,更好支撑我国能源转型发展。
Initial stiffness and moment resistance of reinforced joint with end-plate connection
Sufang WANG, Yiyi CHEN,
《结构与土木工程前沿(英文)》 2009年 第3卷 第4期 页码 345-351 doi: 10.1007/s11709-009-0054-x
关键词: steel structure end-plate connection backing plate supplementary web plate initial stiffness moment resistance
Experimental study on the compressive performance of new sandwich masonry walls
Jianzhuang XIAO, Jie PU, Yongzhong HU
《结构与土木工程前沿(英文)》 2013年 第7卷 第2期 页码 154-163 doi: 10.1007/s11709-013-0203-0
关键词: sandwich wall insulation wall connection compressive performance compression test
《结构与土木工程前沿(英文)》 2021年 第15卷 第4期 页码 851-866 doi: 10.1007/s11709-021-0739-3
关键词: damage identification beam-to-column connection time-domain response optimization
《结构与土木工程前沿(英文)》 页码 870-883 doi: 10.1007/s11709-023-0977-7
关键词: UHPFRC prefabricated updeck road tunnel lap-spliced rebars flexural tests
Experimental analysis on strength and failure modes of wood beam-column connections
Zhenhua HUANG,Sheldon Q SHI,Liping CAI
《结构与土木工程前沿(英文)》 2014年 第8卷 第3期 页码 260-269 doi: 10.1007/s11709-014-0261-y
标题 作者 时间 类型 操作
Static behavior of planar intersecting CFST connection in diagrid structure
Ling LI, Xianzhong ZHAO, Ke KE
期刊论文
Investigation of fatigue resistance of fillet-welded tube connection details for sign support structures
Hyungjoo CHOI, Husam NAJM
期刊论文
An innovative model for predicting the displacement and rotation of column-tree moment connection under
Mohammad Ali NAGHSH, Aydin SHISHEGARAN, Behnam KARAMI, Timon RABCZUK, Arshia SHISHEGARAN, Hamed TAGHAVIZADEH, Mehdi MORADI
期刊论文
Effect of eccentricity in reinforced concrete beam-column-slab connection under cyclic loading
Rooh ULLAH, Amjad NASEER, Muhammad FAHIM, Mohammad ASHRAF, Eid BADSHAH
期刊论文
Simulation of grid connection and maximum power point tracking control of brushless doubly-fed generator
Hicham SERHOUD, Djilani BENATTOUS
期刊论文
Initial stiffness and moment resistance of reinforced joint with end-plate connection
Sufang WANG, Yiyi CHEN,
期刊论文
Experimental study on the compressive performance of new sandwich masonry walls
Jianzhuang XIAO, Jie PU, Yongzhong HU
期刊论文
Damage identification in connections of moment frames using time domain responses and an optimization method
期刊论文
Connection of the prefabricated updeck of road tunnels by a short lap-spliced joint using ultra-high-performance
期刊论文