Volume 1: 39th Computers and Information in Engineering Conference最新文献_第7页

Job Shop Scheduling Optimization Using Genetic Algorithm With Global Criterion Technique 基于全局准则技术的遗传算法优化作业车间调度

Volume 1: 39th Computers and Information in Engineering Conference Pub Date : 2019-11-25 DOI: 10.1115/detc2019-98076

Ke Xu, S. Manoochehri

引用次数: 0

Semantic Network Differences Across Engineering Design Communication Methods 跨工程设计沟通方法的语义网络差异

Volume 1: 39th Computers and Information in Engineering Conference Pub Date : 2019-11-25 DOI: 10.1115/detc2019-97728

C. López, Zixuan Zhao, Conrad S. Tucker

{"title":"Semantic Network Differences Across Engineering Design Communication Methods","authors":"C. López, Zixuan Zhao, Conrad S. Tucker","doi":"10.1115/detc2019-97728","DOIUrl":"https://doi.org/10.1115/detc2019-97728","url":null,"abstract":"\u0000 Engineering designers have a variety of methods at their disposal when it comes to communicating an idea (e.g., Linguistic, Pictorial, Virtual). Studies have explored how these methods affect the idea generation process, revealing that some methods can induce design fixation and reduce creativity. Moreover, studies reveal that depending on the communication methods and a receiver’s familiarity with the idea conveyed, the amount of relevant information transmitted could vary. Hence, based on previous studies, it is hypothesized that different communication methods and a receiver’s familiarity can impact a receiver’s ability to construct and interpret the information conveyed. To test this hypothesis, an experiment is conducted in which multiple methods are used to communicate different product ideas to individuals (N = 370). Participants are asked to describe the products in their own words and provide details about their functions. A text-mining approach is used to analyze the semantic structure of their responses. The results reveal that dissemination methods affect the consistency of participants’ responses, as well as the diversity of words used to describe a product idea or its functions. This knowledge can help designers in the selection of an appropriate method, given the design intention and help them leverage different methods to maximize communication effectiveness during the different stages of the design process.","PeriodicalId":352702,"journal":{"name":"Volume 1: 39th Computers and Information in Engineering Conference","volume":"3 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":"128504707","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 Multisensory Virtual Reality System for Astronauts’ Entertainment and Relaxation 面向航天员娱乐休闲的多感官虚拟现实系统

Volume 1: 39th Computers and Information in Engineering Conference Pub Date : 2019-11-25 DOI: 10.1115/detc2019-97836

M. Carulli, M. Bordegoni, Francesca Bernecich, E. Spadoni, P. Bolzan

{"title":"A Multisensory Virtual Reality System for Astronauts’ Entertainment and Relaxation","authors":"M. Carulli, M. Bordegoni, Francesca Bernecich, E. Spadoni, P. Bolzan","doi":"10.1115/detc2019-97836","DOIUrl":"https://doi.org/10.1115/detc2019-97836","url":null,"abstract":"\u0000 A research area of interest is that one concerning the design of solutions for improving the life conditions of users in extreme environmental situations. An example is the spacecraft environment, where astronauts are subject to particular conditions, due to the extreme environment. The isolated and confined environment influences behaviors and perceptions. This situation can impact both on astronauts’ moods, cause states of depression, and impact on their performance in working activities. A spacecraft can be the Space Station orbiting the Earth, or future means of transportation used for travelling to other planets. In both cases the space should be designed so as to offer the best possible living and working conditions to the astronauts.\u0000 The research presented in this paper aims at designing and developing a multisensory VR system for the entertainment and the relaxation of astronauts. The use of VR technology allows us to overcome physical and psychological boundaries of the confined space, which is typical in a spacecraft environment. The sense of smell, which is more linked to visceral emotions than the other senses and can affect various aspects of humans’ physiological and psychological conditions, is used to improve astronauts’ productivity and concentration, and also to relieve their stress and anxiety.","PeriodicalId":352702,"journal":{"name":"Volume 1: 39th Computers and Information in Engineering Conference","volume":"12 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":"126860870","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

Stochastic Simulation of Turbine Engine Component Under Aleatory and Epistemic Uncertainty 不确定性和认知不确定性下涡轮发动机部件的随机仿真

Volume 1: 39th Computers and Information in Engineering Conference Pub Date : 2019-11-25 DOI: 10.1115/detc2019-97764

Austin M. McKeand, R. Gorguluarslan, Seung-Kyum Choi

{"title":"Stochastic Simulation of Turbine Engine Component Under Aleatory and Epistemic Uncertainty","authors":"Austin M. McKeand, R. Gorguluarslan, Seung-Kyum Choi","doi":"10.1115/detc2019-97764","DOIUrl":"https://doi.org/10.1115/detc2019-97764","url":null,"abstract":"\u0000 Quantifying the uncertainty associated with material properties in engineering analysis has become more important in the design of many components in the aerospace field. In this study, a new method is proposed to account for the uncertainty associated with the elastic modulus of materials used in aerospace components. A computerized tomography (CT) scanner is used to capture the porosity of the material and the corresponding uncertainty is represented with epistemic uncertainty. A stochastic upscaling method is used to find a homogenized modulus that correctly reflects the effect of defects inside of the material. This homogenized elastic modulus is then applied to a constructed finite-element model of an aerospace component so that the stochastic behavior can be correctly quantified. Simulations of the selected example, i.e., turbine blade, include both aleatory and epistemic uncertainty; thus, a P-Box is introduced to represent the response of the simulations. The stochastic upscaling method is applied again to match the P-Box response of the coarse scale model to that of the fine scale model. The obtained results show that the proposed framework not only significantly reduces complexity of the given engineering problem, but also produces accurate results which include both aleatory and epistemic uncertainty.","PeriodicalId":352702,"journal":{"name":"Volume 1: 39th Computers and Information in Engineering Conference","volume":"25 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":"132664049","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

Spacecraft Failure Analysis From the Perspective of Design Decision-Making 基于设计决策视角的航天器失效分析

Volume 1: 39th Computers and Information in Engineering Conference Pub Date : 2019-11-25 DOI: 10.1115/detc2019-98420

V. Kattakuri, Jitesh H. Panchal

引用次数: 3

Construction of Multi-Domain System Simulation Model for Trade Studies in System Design Considering Multiple Scenes 考虑多场景的系统设计中贸易研究多域系统仿真模型的构建

Volume 1: 39th Computers and Information in Engineering Conference Pub Date : 2019-11-25 DOI: 10.1115/detc2019-98042

K. Oizumi, Keita Ishida, Yoshihiro Uchibori, K. Aoyama

{"title":"Construction of Multi-Domain System Simulation Model for Trade Studies in System Design Considering Multiple Scenes","authors":"K. Oizumi, Keita Ishida, Yoshihiro Uchibori, K. Aoyama","doi":"10.1115/detc2019-98042","DOIUrl":"https://doi.org/10.1115/detc2019-98042","url":null,"abstract":"\u0000 As a product is sold globally, usages of the product have much wider variety. Thus, a product needs to be designed considering multiple scenes. To certify that the product performs properly in any scene, industries started to apply Model Based Systems Engineering (MBSE). Whereas multi-domain system simulations are regarded as a prominent approach for the system design of a product, construction of model depends on knowledge and sense modelers. This paper proposes a modelling method to construct appropriate multi-domain system simulation models while reducing dependencies to senses of modelers. The proposed method comprises two parts. First, significant tradeoffs to be studied by the simulation are specified. Second, features of simulation models are deliberated for specified tradeoffs. To specify significant tradeoffs, product and scenes where the product is used are integrated into a model. Further, to deliberate features of simulation model, cognitive model of physical phenomena in a product is employed as well. The proposed method was applied to the development of continuously variable transmission to verify its validity.","PeriodicalId":352702,"journal":{"name":"Volume 1: 39th Computers and Information in Engineering Conference","volume":"20 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":"134549453","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

Rapid Investment Casting: Design and Manufacturing Technologies 快速熔模铸造:设计与制造技术

Volume 1: 39th Computers and Information in Engineering Conference Pub Date : 2019-11-25 DOI: 10.1115/detc2019-97554

C. Richard, Tsz-Ho Kwok

引用次数: 4

Improvement of Thermal Performance of Pin Fin Heat Sink Using Different Types of Perforations: A Study Under Natural Convection 自然对流条件下不同穿孔方式对引脚翅片散热器散热性能的影响

Volume 1: 39th Computers and Information in Engineering Conference Pub Date : 2019-11-25 DOI: 10.1115/detc2019-97514

Aashish Kumar, M. K. Mondal

{"title":"Improvement of Thermal Performance of Pin Fin Heat Sink Using Different Types of Perforations: A Study Under Natural Convection","authors":"Aashish Kumar, M. K. Mondal","doi":"10.1115/detc2019-97514","DOIUrl":"https://doi.org/10.1115/detc2019-97514","url":null,"abstract":"\u0000 Improvement of thermal management can significantly enhance the coefficient of performance (COP) of the thermoelectric (TE) system which is one of the potential solutions for cooling electronic components. Since heat sinks are an integral part of all the electronic equipment, therefore, great consideration is given towards meticulous selection of heat sink for improving its reliability and performance. Various methods are being studied to improve heat transfer rates of heat sink such as microchannel, liquid cooling, nano-fluids, fin topology optimization, anodization of pins, and changing heat sink materials. Recent studies have demonstrated that perforations in pins increase the heat transfer rate of pin fin heat sink, though, the results are inadequate to infer the best geometry. Further research is hence necessary to establish the best possible combination of geometry, size, and number of perforations. The present work aims to numerically identify a heat sink configuration with maximum heat transfer rate among several configuration possibilities under laminar flow condition using ANSYS Fluent 18.2. The simulation results demonstrate that lateral perforation in fins enable higher heat transfer rate than the unmodified heat sink geometry, due to higher Nusselt number and reduced pressure drop. The parametric study also reveals that heat sink with three elliptical perforations boost heat transfer rates (about 21% higher) when compared to heat sink with solid and other perforated geometries. Furthermore, perforations reduce weight and greater effectiveness, making it more desirable for its wide-scale applications.","PeriodicalId":352702,"journal":{"name":"Volume 1: 39th Computers and Information in Engineering Conference","volume":"19 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":"124088998","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

Pixel to Stroke Sketch Generation Using Reinforcement Learning 使用强化学习生成像素到笔画草图

Volume 1: 39th Computers and Information in Engineering Conference Pub Date : 2019-11-25 DOI: 10.1115/detc2019-98481

Haizhou Wang, Conrad S. Tucker

{"title":"Pixel to Stroke Sketch Generation Using Reinforcement Learning","authors":"Haizhou Wang, Conrad S. Tucker","doi":"10.1115/detc2019-98481","DOIUrl":"https://doi.org/10.1115/detc2019-98481","url":null,"abstract":"\u0000 Many engineering design tasks involve creating early conceptual sketches that do not require exact dimensions. Although some previous works focus on automatically generating sketches from reference images, many of them output exactly the same objects as the reference images. There are also models that generate sketches from scratch, which can be divided into pixel-based and stroke-based methods. Pixel-based methods generate sketches as a whole, without any information of the strokes, while stroke-based methods generate sketches by outputting strokes in a sequential manner. Pixel-based methods are frequently used to generate realistic color images. Although the pixel-based methods are more popular, stroke-based methods have the advantages to scale to a larger dimension without losing high fidelity. An image generated from stroke-based methods has only strokes on the canvas, resulting in no random noise in the blank areas of the canvas. However, one challenge in the engineering design community is that most of the sketches are saved as pixel-based images. Furthermore, many non-pixel-based methods rely on stroke-based training data, making them ill-suited for generating design conceptual sketches. In order to overcome these limitations, the authors proposed an agent that can learn from pixel-based images and generate stroke-based images. An advantage of such an agent is the ability to utilize pixel-based training data that is abundant in design repositories, to train stroke-based methods that are typically constrained by the lack of access to stroke-based training data.","PeriodicalId":352702,"journal":{"name":"Volume 1: 39th Computers and Information in Engineering Conference","volume":"17 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":"127456850","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

Design of NRL66.4: An Electro-Hydraulic 6-DoF Parallel Robotic Multiaxial Material Testing System NRL66.4电液六自由度并联机器人多轴材料测试系统设计

Volume 1: 39th Computers and Information in Engineering Conference Pub Date : 2019-11-25 DOI: 10.1115/detc2019-98360

J. Michopoulos, A. Iliopoulos, J. Steuben, B. Graber

{"title":"Design of NRL66.4: An Electro-Hydraulic 6-DoF Parallel Robotic Multiaxial Material Testing System","authors":"J. Michopoulos, A. Iliopoulos, J. Steuben, B. Graber","doi":"10.1115/detc2019-98360","DOIUrl":"https://doi.org/10.1115/detc2019-98360","url":null,"abstract":"\u0000 Contemporary material testing applications such as high throughput material testing under realistic conditions, emulation of in-service loading conditions for the qualification of additively manufactured parts, material failure and damage propagation modeling validation and material constitutive characterization, are all underscoring the demand for an automated multiaxial testing capability. In order to address these needs, the present work introduces the initial progress of the design and prototyping of a 6 degrees of freedom (6-DoF) robotic system to be used as such a testing infrastructure. This system is designed to be capable of enforcing 6-DoF kinematic or force controlled boundary conditions on deformable material specimens, while at the same time measuring both the imposed kinematics and the corresponding reaction forces in a fully automated manner. Furthermore, as an extension to our previously prototyped systems, the system proposed here is designed to apply both quasi-static loading but also cyclic loading for enabling multiaxial fatigue studies. In addition to the architecture, the design and current status of its implementation for the most critical sub-systems is presented.","PeriodicalId":352702,"journal":{"name":"Volume 1: 39th Computers and Information in Engineering Conference","volume":"39 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":"116937360","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