Volume 13: Design, Reliability, Safety, and Risk最新文献_第2页

Design, Installation, and Validation of a Data Acquisition System 数据采集系统的设计、安装和验证

Volume 13: Design, Reliability, Safety, and Risk Pub Date : 2018-11-09 DOI: 10.1115/IMECE2018-87071

Yucheng Liu, Andrew LeClair, Matthew Doude, Reuben F. Burch

引用次数: 0

Research on a Multi-Fidelity Surrogate Model Based Model Updating Strategy 基于多保真代理模型的模型更新策略研究

Volume 13: Design, Reliability, Safety, and Risk Pub Date : 2018-11-09 DOI: 10.1115/IMECE2018-88421

Ping Wang, Qingmiao Wang, Xin Yang, Zhenfei Zhan

{"title":"Research on a Multi-Fidelity Surrogate Model Based Model Updating Strategy","authors":"Ping Wang, Qingmiao Wang, Xin Yang, Zhenfei Zhan","doi":"10.1115/IMECE2018-88421","DOIUrl":"https://doi.org/10.1115/IMECE2018-88421","url":null,"abstract":"In vehicle design modeling and simulation, surrogate model is commonly used to replace the high fidelity Finite Element (FE) model. A lot of simulation data from the high-fidelity FE model are utilized to construct an accurate surrogate model requires. However, computational time of FE model increases significantly with the growing complexities of vehicle engineering systems. In order to attain a surrogate model with satisfactory accuracy as well as acceptable computational time, this paper presents a model updated strategy based on multi-fidelity surrogate models. Based on a high-fidelity FE model and a low-fidelity FE model, an accurate multi-fidelity surrogate model is modeled. Firstly, the original full vehicle FE model is simplified to get a sub-model with acceptable accuracy, and it is able to capture the essential behaviors in the vehicle side impact simulations. Next, a primary response surface model (RSM) is built based on the simplified sub-model simulation data. Bayesian inference based bias term is modeled using the difference between the high-fidelity full vehicle FE model simulation data and the primary RSM running results. The bias is then incorporated to update the original RSM. This method can enhance the precision of surrogate model while saving computational time. A real-world side impact vehicle design case is utilized to demonstrate the validity of the proposed strategy.","PeriodicalId":201128,"journal":{"name":"Volume 13: Design, Reliability, Safety, and Risk","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122735858","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 Novel Optimization Design Method of Additive Manufacturing Oriented Porous Structures 一种面向增材制造的多孔结构优化设计新方法

Volume 13: Design, Reliability, Safety, and Risk Pub Date : 2018-11-09 DOI: 10.1115/IMECE2018-86952

Jiaqi Zhao, Ming Zhang, Yu Zhu, Xin Li, Wang Leijie

引用次数: 4

Early Fault Warning of Spindle Based on the Adaptive Weighted Fuzzy Petri Net 基于自适应加权模糊Petri网的主轴早期故障预警

Volume 13: Design, Reliability, Safety, and Risk Pub Date : 2018-11-09 DOI: 10.1115/IMECE2018-86042

Hai Li, Wei Wang, Qingzhao Li, Lei Fan, Pu Huang

引用次数: 0

Optimal Reaction Wrench Measuring Platform 最佳反应扳手测量平台

Volume 13: Design, Reliability, Safety, and Risk Pub Date : 2018-11-09 DOI: 10.1115/IMECE2018-87057

R. Kumar, A. Jain, J. P. Khatait

引用次数: 0

Side Structure Integrity Research for Passenger Rail Equipment 客运轨道设备侧结构完整性研究

Volume 13: Design, Reliability, Safety, and Risk Pub Date : 2018-11-09 DOI: 10.1115/IMECE2018-87700

Shaun Eshraghi, Michael Carolan, A. Perlman

{"title":"Side Structure Integrity Research for Passenger Rail Equipment","authors":"Shaun Eshraghi, Michael Carolan, A. Perlman","doi":"10.1115/IMECE2018-87700","DOIUrl":"https://doi.org/10.1115/IMECE2018-87700","url":null,"abstract":"The U.S. Department of Transportation (DOT) Federal Railroad Administration (FRA) began promulgating regulations for the structural crashworthiness of passenger rail equipment at 49 Code of Federal Regulations (CFR) Part 238 on May 12, 1999. These Passenger Equipment Safety Standards (PESS) [1] include requirements affecting the designs of sidewall structures on passenger rail equipment. The FRA’s Office of Research, Development and Technology and the DOT’s Volpe National Transportation Systems Center are conducting research to evaluate the side impact strength of Tier I passenger rail equipment designs that have been constructed according to the current side structure regulations in §238.215 and §238.217.\u0000 Following a fatal 2011 accident in which a highway semitrailer truck impacted the side of a passenger train that was transiting a grade crossing in Miriam, NV, the National Transportation Safety Board (NTSB) recommended that the FRA “develop side impact crashworthiness standards (including performance validation) for passenger railcars that provide a measurable improvement compared to the current regulation for minimizing encroachment to and loss of railcar occupant survival space” [2].\u0000 This paper describes the status of the current FRA research related to side structure integrity and describes the planned next stage of the research program which will include analyzing the performance of generalized passenger railcar structures in side impact collision scenarios. A discussion of the technical challenges associated with analyzing side impacts on passenger rail equipment is also presented.","PeriodicalId":201128,"journal":{"name":"Volume 13: Design, Reliability, Safety, and Risk","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114209049","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

System Wear Life Estimation Under Uncertainty 不确定条件下系统磨损寿命估算

Volume 13: Design, Reliability, Safety, and Risk Pub Date : 2018-11-09 DOI: 10.1115/IMECE2018-87015

Mohammad Pourmostafaei, M. Pourgol-Mohammad, M. Yazdani, Hossein Salimi

引用次数: 1

Unmanned Underwater Drone Design for Ocean Exploration 海洋探测无人潜航器设计

Volume 13: Design, Reliability, Safety, and Risk Pub Date : 2018-11-09 DOI: 10.1115/IMECE2018-87649

R. Goonesekere, Yu Guo

引用次数: 0

A Study on Sampling Strategies to Determine the Variability of Parametric History-Based 3D CAD Models 基于参数化历史的三维CAD模型变异性采样策略研究

Volume 13: Design, Reliability, Safety, and Risk Pub Date : 2018-11-09 DOI: 10.1115/IMECE2018-87404

M. Contero, Ferran Naya, David Pérez-López, Pedro Company, J. Camba

{"title":"A Study on Sampling Strategies to Determine the Variability of Parametric History-Based 3D CAD Models","authors":"M. Contero, Ferran Naya, David Pérez-López, Pedro Company, J. Camba","doi":"10.1115/IMECE2018-87404","DOIUrl":"https://doi.org/10.1115/IMECE2018-87404","url":null,"abstract":"Design reusability largely depends on the parametric quality of its associated digital product data. In this regard, the quality of the master model (typically a history-based parametric model) is crucial. However, no quantitative metrics exist that can provide an accurate assessment of parametric complexity and model reusability. In this paper, a set of 370 parametric 3D CAD models of various geometric complexities were analyzed to assess their robustness when undergoing alteration. Three indicators for estimating the modification ability of the model are proposed: Ratio for Exhaustive Modification, Ratio for Selective Exhaustive Modification, and Ratio for Weighted Exhaustive Modification. Correlations between these indicators as well as other geometric complexity metrics are studied. The geometric complexity metrics considered in our study include number of faces, surface area to volume ratio, sphericity, and convexity. Our experimental results with the proposed indicators provide new insights on the quantitative assessment of parametric complexity and support their use as reliable indicators of CAD model reusability.","PeriodicalId":201128,"journal":{"name":"Volume 13: Design, Reliability, Safety, and Risk","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126826309","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: 3

Optimal Design of a Conventional and Magnetorheological Fluid Brakes Using Sensitivity Analysis and Taguchi Method 基于灵敏度分析和田口法的常规和磁流变液制动器优化设计

Volume 13: Design, Reliability, Safety, and Risk Pub Date : 2018-11-09 DOI: 10.1115/IMECE2018-86775

Salwan Obaid Waheed Khafaji, N. Manring, M. Al-Mudhafar

{"title":"Optimal Design of a Conventional and Magnetorheological Fluid Brakes Using Sensitivity Analysis and Taguchi Method","authors":"Salwan Obaid Waheed Khafaji, N. Manring, M. Al-Mudhafar","doi":"10.1115/IMECE2018-86775","DOIUrl":"https://doi.org/10.1115/IMECE2018-86775","url":null,"abstract":"Drum brakes have dominated the braking industry for many years due to their low cost and adequate operating performance. In this paper, the authors present the first example of studying the sensitivity analysis of a magnetorheological fluid (MRF) and a conventional frictional brake by using first order Tayler series expansion. Nondimensional analyses are carried out to generalize the analyses for every brake configuration. This paper seeks to step away from the complexity of the numerical models for these brakes. Taylor series expansion is used to examine the effects of perturbing dimensionless design parameters on the braking torque. In addition, Taguchi approach is applied for the brakes to study the contribution of the design parameters on the braking torque and to obtain the optimal design. It is shown in this paper that braking torque for magnetorheological fluid brake is dependent on seven dimensionless groups while the frictional brake is dependent upon only four dimensionless groups. Four groups of the MRF brake and two groups for the frictional brake dominate the physics of braking. The sensitivity analysis has identified the key parameters that must be adjusted in order to increase braking torque. Furthermore, Taguchi approach has showed the how the variations of input variables affect the variations of the output variable and stated the optimal levels of the design parameters that achieve the optimal design.","PeriodicalId":201128,"journal":{"name":"Volume 13: Design, Reliability, Safety, and Risk","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126994654","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