Pub Date : 1995-10-03DOI: 10.1061/9780784401316.006
U. Halabe, Roger H. L. Chen, P. Klinkhachorn, V. Bhandarkar, Shen-En Chen, A. Klink
The state-of-the-art in nondestructive testing (NDT) technology has advanced significantly over the past fifteen years and has reached a stage where continuous monitoring of structures can be successfully achieved. The need for the adoption of advanced NDT technology for Maglev is absolutely essential because of the Maglev system safety and performance considerations and high cost of construction. In this paper, several monitoring methods such as Acoustic Emission, Ultrasonics, Ground Penetrating Radar, Infrared Thermography, and Fiber Optic Sensors have been evaluated in terms of their possible use in a Maglev system. Also, monitoring of guideway alignment and detection of debris on the guideway using Lasers and Fiber Optics have been investigated.
{"title":"Conceptual Design of a Monitoring System for Maglev Guideways","authors":"U. Halabe, Roger H. L. Chen, P. Klinkhachorn, V. Bhandarkar, Shen-En Chen, A. Klink","doi":"10.1061/9780784401316.006","DOIUrl":"https://doi.org/10.1061/9780784401316.006","url":null,"abstract":"The state-of-the-art in nondestructive testing (NDT) technology has advanced significantly over the past fifteen years and has reached a stage where continuous monitoring of structures can be successfully achieved. The need for the adoption of advanced NDT technology for Maglev is absolutely essential because of the Maglev system safety and performance considerations and high cost of construction. In this paper, several monitoring methods such as Acoustic Emission, Ultrasonics, Ground Penetrating Radar, Infrared Thermography, and Fiber Optic Sensors have been evaluated in terms of their possible use in a Maglev system. Also, monitoring of guideway alignment and detection of debris on the guideway using Lasers and Fiber Optics have been investigated.","PeriodicalId":265945,"journal":{"name":"Structural Engineering in Natural Hazards Mitigation","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1995-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114693096","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}
Pub Date : 1900-01-01DOI: 10.1061/9780784402207.CH01
J. Arora, S. A. Burns, Min Huang
Basic concepts of optimization are described using design of a plate girder as an example. First, a way to formulate the problem as an optimization problem is presented. Then basic terminologies and concepts are presented using the graphical optimization procedure. Optimality conditions are explained and basic ideas of iterative optimization methods are presented. It is shown that once the optimization problem is formulated, numerical methods are available to solve the problem and study the effects of variations in various parameters and conditions. This way, the optimization methodology is viewed as a basic framework facilitating computerization of the design process.
{"title":"What is Optimization","authors":"J. Arora, S. A. Burns, Min Huang","doi":"10.1061/9780784402207.CH01","DOIUrl":"https://doi.org/10.1061/9780784402207.CH01","url":null,"abstract":"Basic concepts of optimization are described using design of a plate girder as an example. First, a way to formulate the problem as an optimization problem is presented. Then basic terminologies and concepts are presented using the graphical optimization procedure. Optimality conditions are explained and basic ideas of iterative optimization methods are presented. It is shown that once the optimization problem is formulated, numerical methods are available to solve the problem and study the effects of variations in various parameters and conditions. This way, the optimization methodology is viewed as a basic framework facilitating computerization of the design process.","PeriodicalId":265945,"journal":{"name":"Structural Engineering in Natural Hazards Mitigation","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115287618","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}
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