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王英俊, 肖蜜, 夏兆辉, 李培根, 高亮
《工程(英文)》 2023年 第22卷 第3期 页码 94-105 doi: 10.1016/j.eng.2022.07.013
本文提出了一种新的设计模式——人辅助设计,以取代传统的计算机辅助设计。在人辅助设计中,计算机可以通过一种新的等几何拓扑优化自动完成整个产品设计,而人类仅需协助轻微修改设计以满足要求。文中提出了一种嵌入域等几何拓扑优化用于设计具有不规则设计域的复杂模型,并且可以基于分层等几何拓扑优化结果自动生成优化结果的可编辑几何模型。测试了三个算例以验证所提出的等几何拓扑优化模式,包括一个具有规则设计域的3D悬臂梁,一个具有不规则设计域的汽车零件和一个具有多尺度结构的MBB梁。结果表明,所提出的等几何拓扑优化模式可以自动生成高质量的优化模型。因此,该技术具有成为革命性技术的巨大潜力,可以将当前设计模式由计算机辅助设计转变为人辅助设计。
关键词: 人辅助设计 CAD/CAE一体化 等几何分析 结构优化 等几何拓扑优化
Guizhong XIE,Dehai ZHANG,Jianming ZHANG,Fannian MENG,Wenliao DU,Xiaoyu WEN
《机械工程前沿(英文)》 2016年 第11卷 第4期 页码 412-422 doi: 10.1007/s11465-016-0396-8
As a widely used numerical method, boundary element method (BEM) is efficient for computer aided engineering (CAE). However, boundary integrals with near singularity need to be calculated accurately and efficiently to implement BEM for CAE analysis on thin bodies successfully. In this paper, the distance in the denominator of the fundamental solution is first designed as an equivalent form using approximate expansion and the original sinh method can be revised into a new form considering the minimum distance and the approximate expansion. Second, the acquisition of the projection point by Newton-Raphson method is introduced. We acquire the nearest point between the source point and element edge by solving a cubic equation if the location of the projection point is outside the element, where boundary integrals with near singularity appear. Finally, the subtriangles of the local coordinate space are mapped into the integration space and the sinh method is applied in the integration space. The revised sinh method can be directly performed in the integration element. A verification test of our method is proposed. Results demonstrate that our method is effective for regularizing the boundary integrals with near singularity.
关键词: computer aided engineering (CAE) boundary element method (BEM) near singularity sinh method coordinate transformation integration space
Review of research and development of computer-aided Kansei Engineering
Li LIN, Chengqi XUE
《机械工程前沿(英文)》 2009年 第4卷 第2期 页码 125-128 doi: 10.1007/s11465-009-0023-z
《化学科学与工程前沿(英文)》 2022年 第16卷 第2期 页码 168-182 doi: 10.1007/s11705-021-2056-8
关键词: computer-aided molecular design bio-oil additives molecular signature descriptor
Ghulam ZAKRIA, Zailin GUAN, Yasser RIAZ, Mirza JAHANZAIB, Anwar KHAN,
《机械工程前沿(英文)》 2010年 第5卷 第2期 页码 157-164 doi: 10.1007/s11465-010-0017-x
关键词: computer-aided design (CAD) computer-aided manufacturing(CAM) SMEs analytical hierarchal approach Expert Choice
LU Chun-guang, MENG Li-li
《机械工程前沿(英文)》 2006年 第1卷 第3期 页码 305-312 doi: 10.1007/s11465-006-0039-6
关键词: PBOM systematic technological implementation technology management workflow technology
Computer-Aided Design System for CP Single-Screw Compressor
SHEN Jing-feng, YAO Fu-sheng
《机械工程前沿(英文)》 2006年 第1卷 第1期 页码 21-25 doi: 10.1007/s11465-005-0018-3
To design various optimum parameters and simulate the working process of CP single-screw compressor, the Computer-Aided Design (CAD) system for the CP single-screw compressor has been established. A new method based on computer graphics technology, database technology, object-oriented programming technology, and visual simulation technology has been adopted in this CAD system. The system has integrated solid modeling function with parameterization design function and animator simulation function based on analyzing the working principle of the CP single-screw compressor. The experimental results show that the CAD system for the CP single-screw compressor is practical and feasible.
关键词: CP single-screw database technology simulation technology programming technology animator simulation
Closed surface modeling with helical line measurement data
LI Ruqiong, LI Guangbu, WANG Yuhan
《机械工程前沿(英文)》 2007年 第2卷 第1期 页码 72-76 doi: 10.1007/s11465-007-0012-z
关键词: free-form surface helical triangle design/computer-aided manufacturing effective
Measurement and correlation of the solid-liquid equilibrium of 2-(
Yanhong SUN, Zhiyong LI, Chuang XIE, Wei CHEN, Cui ZHANG
《化学科学与工程前沿(英文)》 2013年 第7卷 第1期 页码 110-115 doi: 10.1007/s11705-013-1316-7
关键词: solid-liquid equilibrium (SLE) eutectic integrated computer aided system (ICAS) TOPEM correlation
李黄,王春虎
《中国工程科学》 2000年 第2卷 第9期 页码 101-106
气象通信网络和计算机系统作为我国气象事业的信息基础设施,经过近30年的建设和发展,在网络化和计算机应用方面已经取得长足的进步。面向21世纪,中国气象事业在现有基础上将有较大的飞跃和发展,气象信息基础设施将随着国家信息化的发展进程而得到进一步的巩固和发展。文章通过对气象通信网络和计算机系统的发展介绍,来说明气象部门的现代化系统工程建设及其工程化应用状况。
Integrated design of legged mechatronic system
Chin-Yin CHEN, I-Ming CHEN, Chi-Cheng CHENG
《机械工程前沿(英文)》 2009年 第4卷 第3期 页码 264-275 doi: 10.1007/s11465-009-0060-7
关键词: integrated design design for control legged mechatronic system computer aided rapid system integration
《机械工程前沿(英文)》 2022年 第17卷 第2期 doi: 10.1007/s11465-022-0675-5
关键词: ceramic parts trimming computer-aided laser manufacturing 3D vision reconfigurable laser processing system
标题 作者 时间 类型 操作
Implementation of sinh method in integration space for boundary integrals with near singularity in potential problems
Guizhong XIE,Dehai ZHANG,Jianming ZHANG,Fannian MENG,Wenliao DU,Xiaoyu WEN
期刊论文
Design of bio-oil additives via molecular signature descriptors using a multi-stage computer-aided molecular
期刊论文
Selecting and prioritizing key factors for CAD/CAM software in small- and medium-sized enterprises using AHP
Ghulam ZAKRIA, Zailin GUAN, Yasser RIAZ, Mirza JAHANZAIB, Anwar KHAN,
期刊论文
Computer aided process planning system based on workflow technology and integrated bill of material tree
LU Chun-guang, MENG Li-li
期刊论文
Measurement and correlation of the solid-liquid equilibrium of 2-(
Yanhong SUN, Zhiyong LI, Chuang XIE, Wei CHEN, Cui ZHANG
期刊论文
A zone-layered trimming method for ceramic core of aero-engine blade based on an advanced reconfigurable laser processing system
期刊论文