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Du pont speeds design process with MCAE and solid imaging 杜邦通过MCAE和实体成像加快了设计过程
Advances in Engineering Software and Workstations Pub Date : 1991-05-01 DOI: 10.1016/0961-3552(91)90008-R
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引用次数: 0
A study of implementation schemes for vectorized sparse EBE matrix-vector multiplication 矢量化稀疏EBE矩阵-向量乘法的实现方案研究
Advances in Engineering Software and Workstations Pub Date : 1991-05-01 DOI: 10.1016/0961-3552(91)90004-N
Alvaro L.G.A. Coutinho, JoséL.D. Alves, Nelson F.F. Ebecken
{"title":"A study of implementation schemes for vectorized sparse EBE matrix-vector multiplication","authors":"Alvaro L.G.A. Coutinho,&nbsp;JoséL.D. Alves,&nbsp;Nelson F.F. Ebecken","doi":"10.1016/0961-3552(91)90004-N","DOIUrl":"10.1016/0961-3552(91)90004-N","url":null,"abstract":"<div><p>A study of implementation schemes for vectorized sparse element-by-element (EBE) matrix-vector multiplication used in the iterative equation solving of finite element problems is presented. The Hughes, Ferencz and Hallquist scheme and a variation are compared with Torigaki's approach. Computer timing and required memory for each scheme on the IBM 3090/VF vector computer regarding the analysis of large scale three-dimensional solid mechanics problems are presented and results compared.</p></div>","PeriodicalId":100044,"journal":{"name":"Advances in Engineering Software and Workstations","volume":"13 3","pages":"Pages 130-134"},"PeriodicalIF":0.0,"publicationDate":"1991-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0961-3552(91)90004-N","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89598935","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 9
‘What if?’ engineering software now available “如果?的工程软件
Advances in Engineering Software and Workstations Pub Date : 1991-05-01 DOI: 10.1016/0961-3552(91)90007-Q
{"title":"‘What if?’ engineering software now available","authors":"","doi":"10.1016/0961-3552(91)90007-Q","DOIUrl":"https://doi.org/10.1016/0961-3552(91)90007-Q","url":null,"abstract":"","PeriodicalId":100044,"journal":{"name":"Advances in Engineering Software and Workstations","volume":"13 3","pages":"Page 156"},"PeriodicalIF":0.0,"publicationDate":"1991-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0961-3552(91)90007-Q","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"92107464","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A new breed of PhD 新一代的博士
Advances in Engineering Software and Workstations Pub Date : 1991-05-01 DOI: 10.1016/0961-3552(91)90009-S
{"title":"A new breed of PhD","authors":"","doi":"10.1016/0961-3552(91)90009-S","DOIUrl":"https://doi.org/10.1016/0961-3552(91)90009-S","url":null,"abstract":"","PeriodicalId":100044,"journal":{"name":"Advances in Engineering Software and Workstations","volume":"13 3","pages":"Page 157"},"PeriodicalIF":0.0,"publicationDate":"1991-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0961-3552(91)90009-S","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91982627","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Efficient optimization of plane trusses 平面桁架的高效优化
Advances in Engineering Software and Workstations Pub Date : 1991-05-01 DOI: 10.1016/0961-3552(91)90002-L
Hojjat Adeli, Osama Kamal
{"title":"Efficient optimization of plane trusses","authors":"Hojjat Adeli,&nbsp;Osama Kamal","doi":"10.1016/0961-3552(91)90002-L","DOIUrl":"10.1016/0961-3552(91)90002-L","url":null,"abstract":"<div><p>An algorithm based on the General Geometric Programming technique is presented for minimum weight design of plane trusses of fixed geometry. The underlying concept of the approach presented in this article is to condense and subsequently linearize all the primal constraints. A cutting plane algorithm is used iteratively to solve the resulting linear programming problem. It is shown that the number of constraints required for solving the problem in the present approach is independent of the size of the truss for many practical problems.</p></div>","PeriodicalId":100044,"journal":{"name":"Advances in Engineering Software and Workstations","volume":"13 3","pages":"Pages 116-122"},"PeriodicalIF":0.0,"publicationDate":"1991-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0961-3552(91)90002-L","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76436316","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 35
Computer-aided dam break flow routing 计算机辅助溃坝水流路线
Advances in Engineering Software and Workstations Pub Date : 1991-05-01 DOI: 10.1016/0961-3552(91)90001-K
S.Y. Liong, C.C. Tan, W.A.M. Alwis, S. Selvalingam
{"title":"Computer-aided dam break flow routing","authors":"S.Y. Liong,&nbsp;C.C. Tan,&nbsp;W.A.M. Alwis,&nbsp;S. Selvalingam","doi":"10.1016/0961-3552(91)90001-K","DOIUrl":"10.1016/0961-3552(91)90001-K","url":null,"abstract":"<div><p>A computer aided dam-break flow routing program, CADAMBRK, has been developed on the Integraph system. CADAMBRK is based on the widely used dam break analysis program, DAMBRK. However, unlike DAMBRK which uses the rigidly formatted text data file. CADAMBRK operates in a user friendly environment and possesses three additional special features, namely: (1) a digital terrain model, (2) a markedly enhanced graphical plot capability for hydrograph and flood zone identification, and (3) suggested values for overland flow roughnesses to be used in the dam-break generated flood routing. The paper discusses the structure of the program, the various representative modules, and presents results of a hypothetical dam break generated flood.</p></div>","PeriodicalId":100044,"journal":{"name":"Advances in Engineering Software and Workstations","volume":"13 3","pages":"Pages 110-115"},"PeriodicalIF":0.0,"publicationDate":"1991-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0961-3552(91)90001-K","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77231159","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
A finite difference method for a moving-interface diffusion-reaction problem 移动界面扩散反应问题的有限差分法
Advances in Engineering Software and Workstations Pub Date : 1991-05-01 DOI: 10.1016/0961-3552(91)90005-O
G. Sewell , H.G. McMath
{"title":"A finite difference method for a moving-interface diffusion-reaction problem","authors":"G. Sewell ,&nbsp;H.G. McMath","doi":"10.1016/0961-3552(91)90005-O","DOIUrl":"10.1016/0961-3552(91)90005-O","url":null,"abstract":"<div><p>A software is described which solves a diffusion-reaction problem with N diffusing elements which can react to form M non-diffusing compounds. The numerical solution of such a problem is complicated by the fact that different systems of partial differential equations hold in regions in which different compounds are present, and by the fact that the interfaces between regions are mobile. This software is applied to a problem involving the diffusion of carbon and chromium in a NiCr alloy, in which multiple chromium carbides may form and dissociate.</p></div>","PeriodicalId":100044,"journal":{"name":"Advances in Engineering Software and Workstations","volume":"13 3","pages":"Pages 135-147"},"PeriodicalIF":0.0,"publicationDate":"1991-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0961-3552(91)90005-O","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"54043775","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Performance of numerical inversion of Laplace transforms 拉普拉斯变换的数值反演性能
Advances in Engineering Software and Workstations Pub Date : 1991-05-01 DOI: 10.1016/0961-3552(91)90006-P
Fausto Arinos De Almeida Barbuto
{"title":"Performance of numerical inversion of Laplace transforms","authors":"Fausto Arinos De Almeida Barbuto","doi":"10.1016/0961-3552(91)90006-P","DOIUrl":"10.1016/0961-3552(91)90006-P","url":null,"abstract":"<div><p>The Laplace transformation is one of the most powerful tools in mathematics. However, the analytical inversion of a function in the Laplace field to the real field may sometimes be very difficult, or impossible. In 1970, Stehfest presented an algorithm to invert numerically these Laplace-field functions. The purpose of this work is to discuss the performance of this algorithm, and present a Turbo Pascal 5.0 program to perform numerical inversions of Laplace-field functions.</p></div>","PeriodicalId":100044,"journal":{"name":"Advances in Engineering Software and Workstations","volume":"13 3","pages":"Pages 148-155"},"PeriodicalIF":0.0,"publicationDate":"1991-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0961-3552(91)90006-P","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"54043804","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
A semi-numerical approach to the buckling and post-buckling solution of plate 板屈曲和后屈曲解的半数值方法
Advances in Engineering Software and Workstations Pub Date : 1991-05-01 DOI: 10.1016/0961-3552(91)90003-M
P.W. Khong, Michael W.S. Lau, Y.W. Chan
{"title":"A semi-numerical approach to the buckling and post-buckling solution of plate","authors":"P.W. Khong,&nbsp;Michael W.S. Lau,&nbsp;Y.W. Chan","doi":"10.1016/0961-3552(91)90003-M","DOIUrl":"10.1016/0961-3552(91)90003-M","url":null,"abstract":"<div><p>In this semi-numerical approach to buckling of plates, a combination of polynomial and trigonometric functions are used as displacement functions in the Rayleigh-Ritz method. It is shown that a variety of loading and boundary conditions can be handled using simple variation of the trigonometric function proposed here. A two-dimensional plate buckling problem is therefore reduced to selecting one of the set of trigonometric function shown. The buckling coefficient values are then computed as eigenvalues of the stiffness and geometric matrix pair. These values compare well with available analytical and numerical approach solutions. The approach can also be extended to post buckling analysis using the eigenvectors found.</p></div>","PeriodicalId":100044,"journal":{"name":"Advances in Engineering Software and Workstations","volume":"13 3","pages":"Pages 123-129"},"PeriodicalIF":0.0,"publicationDate":"1991-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0961-3552(91)90003-M","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"54043748","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Multi-grid methods and applications 多网格方法和应用
Advances in Engineering Software and Workstations Pub Date : 1991-05-01 DOI: 10.1016/0961-3552(91)90010-2
Paulo Azevedo
{"title":"Multi-grid methods and applications","authors":"Paulo Azevedo","doi":"10.1016/0961-3552(91)90010-2","DOIUrl":"10.1016/0961-3552(91)90010-2","url":null,"abstract":"","PeriodicalId":100044,"journal":{"name":"Advances in Engineering Software and Workstations","volume":"13 3","pages":"Pages 157-158"},"PeriodicalIF":0.0,"publicationDate":"1991-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0961-3552(91)90010-2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82709816","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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