Journal of Mechanical Design最新文献_第2页

A Decision Support Framework for Robust Multilevel Co-Design Exploration of Manufacturing Supply Networks 鲁棒多级协同设计探索制造供应网络的决策支持框架

Journal of Mechanical Design Pub Date : 2024-04-23 DOI: 10.1115/1.4065369

Mathew Baby, Akshay Guptan, Jacob Broussard, J. Allen, F. Mistree, Anand Balu Nellippallil

{"title":"A Decision Support Framework for Robust Multilevel Co-Design Exploration of Manufacturing Supply Networks","authors":"Mathew Baby, Akshay Guptan, Jacob Broussard, J. Allen, F. Mistree, Anand Balu Nellippallil","doi":"10.1115/1.4065369","DOIUrl":"https://doi.org/10.1115/1.4065369","url":null,"abstract":"\u0000 Design of a manufacturing supply network (MSN) requires the consideration of decisions made by different groups at multiple levels and their interactions that include potential conflicts. Decisions are typically made based on information from computational simulations that are abstractions of reality and, therefore, embody uncertainty. This necessitates focusing on design space exploration to identify robust satisficing solution sets that are relatively insensitive to uncertainty. Current frameworks that support robust satisficing design space exploration are limited by their capability to support the efficient exploration of multilevel design spaces simultaneously. In this paper, we present the Framework for Robust Multilevel Co-Design Exploration (FRoMCoDE), a decision support framework that allows designers to i) model decision problems across multiple levels and their interactions, ii) consider uncertainties in the decision problems, and ii) visualize and systematically carry out simultaneous exploration of multilevel design spaces, termed co-design exploration. In FRoMCoDE, we combine the coupled compromise Decision Support Problem construct, where a combination of the Preemptive and Archimedean formulations is used, with robust design constructs and interpretable-Self Organizing Maps (iSOM) based visualization to facilitate robust co-design. We use a steel MSN problem with decisions made at two levels to test the framework. Using the problem, we demonstrate FRoMCoDE's efficacy in supporting designers in i) modeling multilevel decision problems and their interactions, considering the uncertainties, and ii) the efficient co-design exploration of multilevel design spaces. FRoMCoDE is generic and supports designers in the robust co-design exploration of multilevel systems.","PeriodicalId":506672,"journal":{"name":"Journal of Mechanical Design","volume":"103 10","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140669959","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

EXPLORING THE INFLUENCE OF REQUIREMENT REPRESENTATION ON IDEA GENERATION 探索需求表述对创意产生的影响

Journal of Mechanical Design Pub Date : 2024-04-23 DOI: 10.1115/1.4065368

Akash Patel, Joshua Summers, Beshoy Morkos, Sourabh Karmakar

{"title":"EXPLORING THE INFLUENCE OF REQUIREMENT REPRESENTATION ON IDEA GENERATION","authors":"Akash Patel, Joshua Summers, Beshoy Morkos, Sourabh Karmakar","doi":"10.1115/1.4065368","DOIUrl":"https://doi.org/10.1115/1.4065368","url":null,"abstract":"\u0000 The objective of this research is to understand how different representations of requirements influence idea generation in terms of quantity, addressment, novelty, and variety of conceptual sketches. Requirements are testable statements of need, desires, and wishes of the stakeholders that are used by engineers to frame the problem. Project success is highly dependent on well-defined requirements documents. An experimental study was conducted with 52 fourth year mechanical engineering undergraduate students. Two design problems were formulated with three different representations: a problem statement with embedded requirements, a problem statement and a traditional requirement list, and a problem statement with contextualized scrum stories. Each student was provided both design problems with two different representations of requirements. It was found that the use of contextualized scrum story representations significantly affected the novelty of solution fragments and addressment of requirements, while no significant change in variety and quantity was seen. Finally, it was found that quantity is not directly related to the number of requirements addressed in the sketches.","PeriodicalId":506672,"journal":{"name":"Journal of Mechanical Design","volume":"68 11","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140667917","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

Structural synthesis of planar kinematic chains for non-redundant parallel manipulators 非冗余并行机械手平面运动链的结构合成

Journal of Mechanical Design Pub Date : 2024-04-15 DOI: 10.1115/1.4065317

F. V. Morlin, Andrea Piga carboni, D. Martins

引用次数: 0

Asynchronous Multi-Information Source Bayesian Optimization 异步多信息源贝叶斯优化

Journal of Mechanical Design Pub Date : 2024-04-09 DOI: 10.1115/1.4065064

Danial Khatamsaz, Raymundo Arróyave, Douglas L. Allaire

{"title":"Asynchronous Multi-Information Source Bayesian Optimization","authors":"Danial Khatamsaz, Raymundo Arróyave, Douglas L. Allaire","doi":"10.1115/1.4065064","DOIUrl":"https://doi.org/10.1115/1.4065064","url":null,"abstract":"\u0000 Resource management in engineering design seeks to optimally allocate while maximizing the performance metrics of the final design. Bayesian optimization (BO) is an efficient design framework that judiciously allocates resources through heuristic-based searches, aiming to identify the optimal design region with minimal experiments. Upon recommending a series of experiments or tasks, the framework anticipates their completion to augment its knowledge repository, subsequently guiding its decisions toward the most favorable next steps. However, when confronted with time constraints or other resource challenges, bottlenecks can hinder the traditional BO’s ability to assimilate knowledge and allocate resources with efficiency. In this work, we introduce an asynchronous learning framework designed to utilize idle periods between experiments. This model adeptly allocates resources, capitalizing on lower fidelity experiments to gather comprehensive insights about the target objective function. Such an approach ensures that the system progresses uninhibited by the outcomes of prior experiments, as it provisionally relies on anticipated results as stand-ins for actual outcomes. We initiate our exploration by addressing a basic problem, contrasting the efficacy of asynchronous learning against traditional synchronous multi-fidelity BO. We then employ this method to a practical challenge: optimizing a specific mechanical characteristic of a dual-phase steel.","PeriodicalId":506672,"journal":{"name":"Journal of Mechanical Design","volume":"48 11","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140726232","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

Development and Optimization of a Noncircular Pulley for Motion Decoupling in Cable-Driven Serial Robots 开发和优化用于电缆驱动串行机器人运动解耦的非圆形滑轮

Journal of Mechanical Design Pub Date : 2024-04-05 DOI: 10.1115/1.4065278

Jinsai Cheng, Tao Shen

{"title":"Development and Optimization of a Noncircular Pulley for Motion Decoupling in Cable-Driven Serial Robots","authors":"Jinsai Cheng, Tao Shen","doi":"10.1115/1.4065278","DOIUrl":"https://doi.org/10.1115/1.4065278","url":null,"abstract":"\u0000 Cable-driven serial robots have emerged with high potential for widely applications due to their compact size and low inertia properties. However, developing this type of robots encounters a motion coupling issue that the movement of one joint leads to motion of other joints, resulting in complex control. In this paper, we proposed a novel approach for motion decoupling based on a noncircular pulley. The length change of the driving cable caused by the motion coupling problem is resolved by using the noncircular pulley. The calculation process of the profile for the noncircular pulley is illustrated in detail. An optimization process based on brute force method is presented to identify the optimal parameters to minimize the compensation error. A cable-driven serial robot based on the decoupling method is prototyped for assessments. Experiments are conducted to evaluate the performance of the proposed motion decoupling method. The results reveal that the proposed method can effectively resolve the motion coupling issue by maintaining almost constant cable length with a maximum accumulative error only as 0.086mm, demonstrating the effectiveness of the method.","PeriodicalId":506672,"journal":{"name":"Journal of Mechanical Design","volume":"9 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140738887","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 fuzzy ontology-based decision tool for concept selection to maintain consistency throughout design iterations 基于模糊本体的概念选择决策工具，以保持设计迭代过程中的一致性

Journal of Mechanical Design Pub Date : 2024-04-03 DOI: 10.1115/1.4065256

Yan Liu, Xinru Chen, Claudia M. Eckert, Xin Zhang

引用次数: 0

Conceptual Configuration Analysis of Tetrahedral-Octahedral Heterogeneous Unit and Topological Design of Shape Morphing Mechanism 四面体-八面体异质单元的概念构型分析和形状变形机制的拓扑设计

Journal of Mechanical Design Pub Date : 2024-04-02 DOI: 10.1115/1.4065231

Weiming Guo, Hong Xiao, Hongwei Guo, Jianguo Tao, Zongquan Deng, Chuanyang Li

{"title":"Conceptual Configuration Analysis of Tetrahedral-Octahedral Heterogeneous Unit and Topological Design of Shape Morphing Mechanism","authors":"Weiming Guo, Hong Xiao, Hongwei Guo, Jianguo Tao, Zongquan Deng, Chuanyang Li","doi":"10.1115/1.4065231","DOIUrl":"https://doi.org/10.1115/1.4065231","url":null,"abstract":"\u0000 The truss static structure system has excellent large load and lightweight characteristics. It is easy to embed actuators by substituting specific members in the structure and has the potential for multi-dimensional space deformation. Inspired by uniform tessellation structures, this paper proposes a novel shape morphing mechanism (SMM) based on the combined design of tetrahedral-octahedral heterogeneous units (TOHUs). The relationship between the motion properties and driving configuration of the tetrahedral-octahedral units is analyzed to determine their conceptual configuration based on graph theory. Then, the weighted graph, adjacency matrix, and connection rules are evaluated to synthesize the conceptual structure for the truss mechanism. The results show that this configuration can allow multi-dimensional continuous deformations, including span, bend, sweep, and twist. A prototype is built to verify its deformability. Finally, the stiffness performance is analyzed based on Matrix displacement method. This research provides a comprehensive design method for constructing SMM, expands the range of combinable units and connection methods, and offers theoretical guidance for the innovative design of multi-dimensional deformation SMM in aerospace.","PeriodicalId":506672,"journal":{"name":"Journal of Mechanical Design","volume":"143 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140754633","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

Latent crossover for data-driven multifidelity topology design 用于数据驱动的多保真拓扑设计的潜在交叉

Journal of Mechanical Design Pub Date : 2024-03-04 DOI: 10.1115/1.4064979

Taisei Kii, K. Yaji, K. Fujita, Zhenghui Sha, Carolyn Seepersad

{"title":"Latent crossover for data-driven multifidelity topology design","authors":"Taisei Kii, K. Yaji, K. Fujita, Zhenghui Sha, Carolyn Seepersad","doi":"10.1115/1.4064979","DOIUrl":"https://doi.org/10.1115/1.4064979","url":null,"abstract":"\u0000 Topology optimization is one of the most flexible structural optimization methodologies. However, in exchange for its high level of design freedom, typical topology optimization cannot avoid multimodality, where multiple local optima exist. This study focuses on developing a gradient-free topology optimization framework to avoid being trapped in undesirable local optima. Its core is a data-driven multifidelity topology design (MFTD) method, in which the design candidates generated by solving low-fidelity topology optimization problems are updated through a deep generative model and high-fidelity evaluation. As its key component, the deep generative model compresses the original data into a low-dimensional manifold, i.e., the latent space, and randomly arranges new design candidates over the space. Although the original framework is gradient-free, its randomness may lead to convergence variability and premature convergence. Inspired by a popular crossover operation of evolutionary algorithms (EAs), this study merges the data-driven MFTD framework and proposes a new crossover operation called latent crossover. We apply the proposed method to a maximum stress minimization problem in 2D structural mechanics. The results demonstrate that the latent crossover improves convergence stability compared to the original data-driven MFTD method. Furthermore, the optimized designs exhibit performance comparable to or better than that in conventional gradient-based topology optimization using the P-norm measure.","PeriodicalId":506672,"journal":{"name":"Journal of Mechanical Design","volume":"86 10","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140080130","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

2023 Reviewers with Distinction Award 2023 年杰出评审员奖

Journal of Mechanical Design Pub Date : 2024-02-16 DOI: 10.1115/1.4064783

Carolyn Seepersad

引用次数: 0

2023 Reviewers 2023 年审查员

Journal of Mechanical Design Pub Date : 2024-02-16 DOI: 10.1115/1.4064784

Carolyn Seepersad

引用次数: 0