Volume 1: 39th Computers and Information in Engineering Conference最新文献

{"title":"Mahalanobis-Taguchi-Fukuda Approach to Human Motion Control","authors":"S. Fukuda","doi":"10.1115/detc2019-98030","DOIUrl":"https://doi.org/10.1115/detc2019-98030","url":null,"abstract":"\u0000 Learning from failures approach how to control human motion is developed by extending Mahalanobis Taguchi System. It enables quantitative measurement of how the learner is improving in his or her learning, It helps to acquire tacit knowledge such as swimming, for which we do not have valid approach. Since Mahalanobis Distance is a unitless measure for multi-dimensional variables, this approach can be extended to many adaptive network formation and management, because this approach let the learner recognize how he or she can coordinate their body pars to adapt to the changing situations. Thus, the approach ca be applied to development and operation of soft robots and adaptive network or team formation and management in the IoT connected society.","PeriodicalId":352702,"journal":{"name":"Volume 1: 39th Computers and Information in Engineering Conference","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117252164","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}

{"title":"Modeling a Supply Chain Reference Ontology Based on a Top-Level Ontology","authors":"F. Ameri, B. Kulvatunyou","doi":"10.1115/detc2019-98278","DOIUrl":"https://doi.org/10.1115/detc2019-98278","url":null,"abstract":"\u0000 Several supply-chain ontologies have been introduced in the past decade with the promise of enabling supply chain interoperability. However, the existing supply-chain ontologies have several gaps with respect to completeness, logical consistency, domain accuracy, and the development approach. In this work, we propose a new, supply-chain, reference ontology that is 1) based on an existing top-level ontology and 2) developed using a collaborative, ontology-development, best practice. We chose this approach because empirical studies have shown the usefulness of adopting a top-level ontology both for improving the efficiency of the development process and enhancing the quality of the resulting ontology. The proposed proof-of-concept reference ontology is developed in the context of the Industrial Ontology Foundry (IOF). IOF is an international effort aimed at providing a coherent set of modular and publicly-available ontologies for the manufacturing sector. Although the proposed reference ontology is still at the draft stage, this paper shows that it has already benefited from the collaborative development process that involves inputs from the other working groups within IOF. Additionally, as a way to validate the proposed reference ontology, an application ontology related to a supplier discovery and evaluation use case is derived from the reference ontology and tested.","PeriodicalId":352702,"journal":{"name":"Volume 1: 39th Computers and Information in Engineering Conference","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115484583","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}

{"title":"Modeling and Analysis of Subsystem Interactions in Robotic Assembly","authors":"Shaurya Shriyam, Satyandra K. Gupta","doi":"10.1115/detc2019-98081","DOIUrl":"https://doi.org/10.1115/detc2019-98081","url":null,"abstract":"\u0000 We present a modeling framework for a production line consisting of multiple robotic assembly cells by integrating probabilistic modeling and temporal logic verification techniques. A production line is a complex system comprising of multiple assembly cells which in turn comprises of multiple assembly stations. We evaluate the performance of the proposed operations plan by decomposing the whole system into smaller subsystems which are analyzed separately. This allows us to design optimized systems. We first model an assembly cell in a probabilistic model checking tool. Contingencies may arise in each cell during the production operations and are resolved by humans or the assembly robots themselves. We simulate multiple cells operating cooperatively to finish production of parts. We perform formal analysis for each cell, which is a sub-system of the production line and then study the aggregate behavior of the resulting production line. Based on our analysis of individual cell behavior, we can determine how to change cell settings to achieve the best production performance.","PeriodicalId":352702,"journal":{"name":"Volume 1: 39th Computers and Information in Engineering Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130079966","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}

{"title":"Smartphone As a Stand-Alone Device for Rendering, Visualization and Tracking for Use During Product Development in Virtual Reality (VR)","authors":"Atif Mahboob, S. Husung, C. Weber, Andreas Liebal, Heidi Krömker","doi":"10.1115/detc2019-97173","DOIUrl":"https://doi.org/10.1115/detc2019-97173","url":null,"abstract":"\u0000 Product development process makes use of different models, methods and available technologies to validate product requirements at an early stage. Technologies like Virtual Reality (VR) and Augmented Reality (AR) are increasingly finding their application in industry and in the product development process. VR has the potential to support the product evaluation process. However, the costly preparation of VR scenes and the expensive hardware needed for the implementation greatly limits its use in the industry. Normally, the different VR content development and rendering softwares are application specific and offer very limited interoperability or reuse of created content. In addition, the needed hardware usually consists of dedicated visualization computers, tracking sensors, interaction devices and requires a fixed installation space. The motivation for the work presented in this paper is to reduce the preparation effort, hardware cost and remove the need for a fixed installation usually required by VR.\u0000 The High-End smartphones of today from almost all the manufacturers can facilitate the development and stand-alone execution of VR and AR applications. However, the major application of Smartphone Virtual Reality (SVR) is mainly in the entertainment industry i.e. VR-gaming or visualization applications etc. VR until today is thought to be a visualization technology that requires special hardware for its implementation. There are hardly any applications of SVR in the industry today mainly because of two reasons. First, the position tracking against the user movement in the virtual scene is not readily available in SVR. It is usually achieved by attaching additional tracking devices to smartphones. Secondly, the smartphones themselves are not perceived as high-performance devices suitable for industrial simulations.\u0000 This paper discusses a method for efficient preparation of VR-scene along with their behavior simulations and presents a novel SVR application that eliminates the need for expensive VR hardware. The challenges and the requirements from the SVR along with the possible solutions are discussed in detail. The presented SVR application includes product behavior simulation and wireless communication with a laptop. An example product along with its behavior simulation sums-up the application of SVR in the product development process. The position tracking in SVR is implemented and an experiment compares the precision of this position tracking with the tracking achieved by a Head Mounted Display (HMD). The experimental setup along with the achieved results are also discussed. A user survey conducted for the smartphone VR application and the feedback of this survey is also presented in this paper.","PeriodicalId":352702,"journal":{"name":"Volume 1: 39th Computers and Information in Engineering Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128706830","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}

{"title":"On Practice and Theory of Constructive Composite Geometry and Topology","authors":"Thomas Hedberg, Jr., A. B. Feeney, V. Srinivasan","doi":"10.1115/detc2019-97134","DOIUrl":"https://doi.org/10.1115/detc2019-97134","url":null,"abstract":"\u0000 This paper synthesizes a theory from industrial best practices codified in recent standards. Recent editions of ASME and ISO standards codify the evolving industrial best practices in defining and modeling the information about products made from fibrous composite materials. A theory of constructive composite geometry and topology is synthesized from these practices. Major features of this theory include (1) a constructive composite geometry tree that is equivalent to the ply/laminate tables of the standards, (2) an adjacency graph that captures a crucial aspect of the topology of the geometric cell complex structure of composite products, and (3) conformal mapping of ply surfaces using rosettes in the lay-up process. It also addresses the geometrical and topological structure of fiber arrangements inside the plies. The goal of the theory is to provide a scientific basis for standards that enable the digital transformation of composite product manufacturing.","PeriodicalId":352702,"journal":{"name":"Volume 1: 39th Computers and Information in Engineering Conference","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126955006","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}

{"title":"Towards Thermal Simulation of Powder Bed Fusion on Path Level","authors":"Yaqi Zhang, V. Shapiro, P. Witherell","doi":"10.1115/detc2019-98046","DOIUrl":"https://doi.org/10.1115/detc2019-98046","url":null,"abstract":"\u0000 Powder bed fusion (PBF) is a widely used additive manufacturing (AM) technology to produce metallic parts. Understanding the relationships between process parameter settings and the quality of finished parts remains a critical research question. Developing this understating involves an intermediate step: Process parameters, such as laser power and scan speed, influence the ongoing process characteristics, which then affect the final quality of the finished parts. Conventional approaches to addressing those challenges such as powder-based simulations (e.g., discrete element method (DEM)) and voxel-based simulations (e.g., finite element method (FEM)) can provide valuable insight into process physics. Those types of simulations, however, are not well-suited to handle realistic manufacturing plans due to their high computational complexity.\u0000 Thermal simulations of the PBF process have the potential to implement that intermediate step. Developing accurate thermal simulations, however, is difficult due to the physical and geometric complexities of the manufacturing process. We propose a new, meso-scale, thermal-simulation, which is built on the path-level interactions described by a typical process plan. Since our model is rooted in manufactured geometry, it has the ability to produce scalable, thermal simulations for evaluating realistic process plans. The proof-of-concept simulation result is validated against experimental results in the literature and experimental results from National Institute of Standards and Technology (NIST).\u0000 In our model, the laser-scan path is discretized into elements, and each element represents the newly melted material. An element-growth mechanism is introduced to simulate the evolution of the melt pool and its thermal characteristics during the manufacturing process. The proposed simulation reduces computational demands by attempting to capture the most important thermal effects developed during the manufacturing process. Those effects include laser-energy absorption, thermal interaction between adjacent elements and elements within the underneath substrate, thermal convection and radiation, and powder melting.","PeriodicalId":352702,"journal":{"name":"Volume 1: 39th Computers and Information in Engineering Conference","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114890051","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}

{"title":"Optimal Camera Configuration for 3D Scanning of Human Hand","authors":"Yusheng Yang, W. Elkhuizen, Tao Hou, Tessa T. W. Essers, Yu Song","doi":"10.1115/detc2019-97784","DOIUrl":"https://doi.org/10.1115/detc2019-97784","url":null,"abstract":"\u0000 Fast, accurate and low-cost 3D scans are the key in designing personalized products. In this paper, using close-range photogrammetry technique, we aim at finding the “just enough” number of cameras and their spatial configurations for a full 3D reconstruction of the human hand. Given an object, we establish a mathematical model to describe the 3D constructible ratio based on the field of the view and the depth of field of each camera, as well as the visibility of each part of the object in the view of each camera. Furthermore, we introduce spatial constrains to arrange cameras along two rings for: 1) solving the problem of the large number of parameters in the unconstrained optimization, and 2) the feasibility and flexibility in the construction. Based on the found number of cameras and the spatial configuration of each camera, a prototype scanner was built to verify the effectiveness of the proposed method. The mean absolute error between the 3D scan of a 3D printed hand and its original CAD model was found to be 0.38mm, which is smaller than that (0.52mm) of using the conventional setup. Besides, the distribution of errors is smaller as well, which implicates a better full 3D reconstruction of the scanned hand.","PeriodicalId":352702,"journal":{"name":"Volume 1: 39th Computers and Information in Engineering Conference","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132145739","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}

{"title":"Optimal Reconfiguration Path Decision Method for One RMT System","authors":"Sihan Huang, Cong Zeng, Guoxin Wang, Yan Yan","doi":"10.1115/detc2019-98234","DOIUrl":"https://doi.org/10.1115/detc2019-98234","url":null,"abstract":"\u0000 Reconfigurable manufacturing system (RMS) is designed around a specific part family. Reconfigurable machine tools (RMT) is the core facility of RMS. One RMT system is an RMS consisting of only one RMT. So, the RMT of one RMT system is designed for a specific part family, which integrates the characteristics of RMS and RMT. The reconfiguration path problem of one RMT system is an urgent problem to be solved. Therefore, an optimal reconfiguration path decision method for one RMT system is proposed in this paper. The objective is to produce the entire part family at the minimum reconfiguration effort. Reconfiguration time is adopted as the characteristic value of reconfiguration effort in this paper. The Tabu Search algorithm (TS) is used to solve this problem due to its excellent search ability. Process rule is considered during computation to obtained reasonable solution. A case study is given to implement the proposed method. The result shows that the proposed method can produce an optimal reconfiguration path for one RMT system satisfying the process rule.","PeriodicalId":352702,"journal":{"name":"Volume 1: 39th Computers and Information in Engineering Conference","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134433727","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}

{"title":"Electron Backscatter Diffraction-Enabled Anisotropic Thermo-Elastic Analysis of Additively Manufactured Single Tracks","authors":"A. Birnbaum, J. Michopoulos, J. Steuben, A. Iliopoulos","doi":"10.1115/detc2019-98351","DOIUrl":"https://doi.org/10.1115/detc2019-98351","url":null,"abstract":"\u0000 Despite extensive efforts directed toward elucidating the connections between process, microstructure and performance of additively manufactured structures and components, a significant number of meaningful questions remain unanswered. Specifically, a large body of work has demonstrated that microstructural/sub-structural features in selectively laser melted (SLM) components give rise to a significant enhancement in strength. Furthermore, the change in associated ductility is comparable to that seen in post-processed, wrought annealed material. However, the origin and mechanism by which these features arise have remained elusive. This work is an initial step in leveraging computational capabilities for validating experiment-based theories that explain the basis for the above-mentioned phenomena. The present work describes a computational approach for utilizing spatially resolved crystal-lographic descriptions obtained via electron backscatter diffraction (EBSD) to define the domain geometry and material properties of an anisotropic thermo-elastic simulation. The resulting solution is used to ascertain the elastic strain energy state, and slip-system resolved shear stresses on a per-grain basis. This analysis is performed, in part, as a means for validating a hypothesis linking these characteristics with the development of sub-structural features, which are in turn, correlated with improvements in material performance. The results suggest that both strain energy density and grain boundary character play an important role in the formation of substructure in additively manufactured 316L stainless steels.","PeriodicalId":352702,"journal":{"name":"Volume 1: 39th Computers and Information in Engineering Conference","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123909142","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}

{"title":"On the Effect of Glassy Coatings on the Wear of a Sliding Contact via Multiphysics Modeling","authors":"J. Michopoulos, A. Iliopoulos, J. Steuben, A. Birnbaum, N. Apetre","doi":"10.1115/detc2019-97677","DOIUrl":"https://doi.org/10.1115/detc2019-97677","url":null,"abstract":"\u0000 A recently developed multiphysics computational framework is exercised to predict the wear behavior of two deformable and heat conducting bodies under conditions of sliding contact. This framework enables the solution of a high dimensional thermo-mechanical problem simultaneously and tightly coupled with the associated wear evolution models for each of the wear pair bodies, thus enabling predictions of wear for both of them. Two distinct slider-base pairs are modeled. The first involves an aluminum alloy slider and a copper alloy base. The second is a pair identical to the first except it contains a thin strip of soda lime glass embedded in the surface of the base. The objective of this effort is to establish the effects of this glass layer on the wear of all participating bodies in comparison to the pair that does not contain this layer. The results indicate that while the glass layer has a wear mitigation effect for the stationary base it slightly increases the wear of the slider when compared with the respective bodies when the glass is not present.","PeriodicalId":352702,"journal":{"name":"Volume 1: 39th Computers and Information in Engineering Conference","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125136659","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}