Conceptual and Innovative Design for Manufacturing最新文献

An Optimized Production Technology Approach to Design for Throughput 面向产量设计的优化生产技术方法

Conceptual and Innovative Design for Manufacturing Pub Date : 1999-11-14 DOI: 10.1115/imece1999-0785

S. B. Billatos, Gregg Wolffarth

{"title":"An Optimized Production Technology Approach to Design for Throughput","authors":"S. B. Billatos, Gregg Wolffarth","doi":"10.1115/imece1999-0785","DOIUrl":"https://doi.org/10.1115/imece1999-0785","url":null,"abstract":"\u0000 Many manufacturing organizations are losing their competitive position due to a large number of reasons discussed in this paper. To regain a competitive position, organizations must clearly understand their goals. The Goal for a manufacturing organization should be making money now and in the future [1,2]. Producing products, high utilization, keeping people busy, high quality, good customer service, etc., are means to the Goal but not ‘The Goal’ itself. To achieve an organization’s goal, management must turn to OPT. OPT (Optimized Production Technology) is the original and most advanced constraint based advanced planning and scheduling system [3,4]. It is the practical implementation of the Theory of Constraints in the modeling, planning and scheduling of activity based business. OPT has proven its applicability in job shop, repetitive manufacturing and process industries all over the world. Therefore, shop floor issues, such as bottlenecks, setups, lot sizes, priorities, random fluctuations and performance measurements, are treated in great depth. The OPT philosophy incorporates nine rules which, when followed, can help move the organization towards the goal of making money. Underlying each of the rules is the understanding that effective management of an organization takes a global perspective of all resources and their interrelationship to achieve the goal. These rules coupled with a set of measurements: Throughput, Inventory and Operating Expenses, would lead any manufacturing organization to fulfilling the goal. Since few literatures have covered the general application of these measures, this paper will focus only on Throughput. The paper will discuss the step-by-step implementation procedures that would help industry in designing their systems for throughput.","PeriodicalId":166122,"journal":{"name":"Conceptual and Innovative Design for Manufacturing","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125094975","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

Innovative Design in Quality Engineering 质量工程中的创新设计

Conceptual and Innovative Design for Manufacturing Pub Date : 1999-11-14 DOI: 10.1115/imece1999-0789

Z. Bzymek, S. B. Billatos

引用次数: 0

Modeling and Optimization of Fixture for Handling Compliant Sheet Metal Parts 柔性钣金件加工夹具的建模与优化

Conceptual and Innovative Design for Manufacturing Pub Date : 1999-11-14 DOI: 10.1115/imece1999-0791

D. Ceglarek, H. F. Li, Y. Tang

{"title":"Modeling and Optimization of Fixture for Handling Compliant Sheet Metal Parts","authors":"D. Ceglarek, H. F. Li, Y. Tang","doi":"10.1115/imece1999-0791","DOIUrl":"https://doi.org/10.1115/imece1999-0791","url":null,"abstract":"\u0000 Material handling of compliant parts is one of the most critical and underresearched problems in the sheet metal stamping industry. The fundamental shortcoming of currently studied material handling systems for sheet metal stamping is the lack of analysis of its impact on part dimensional quality and production throughput.\u0000 This paper addresses this problem by development of a generic methodology for modeling and optimization of part holding end-effector fixture layout in order to minimize part dimensional deformation during handling operations. The methodology extends the design of “N-2-1” fixturing layout by adding part movability conditions. It considers part CAD model, handling direction and motion kinematic parameters to determine the best end effector layout. This methodology is realized by integrating FEM part and loading modeling with the optimization algorithm. It can be implemented into the design stage of a stamping line so that the trial and error process, which is current industrial practice, can be greatly shortened and the production throughput increased. Experimental results verify the proposed part holding end-effector layout methodology.","PeriodicalId":166122,"journal":{"name":"Conceptual and Innovative Design for Manufacturing","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121148921","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

Innovative Design of Manufacturing Systems 制造系统创新设计“，

Conceptual and Innovative Design for Manufacturing Pub Date : 1999-11-14 DOI: 10.1115/imece1999-0786

V. Tsourikov, Igor Devoino

引用次数: 0

Concurrent Cost Calculations With a Feature-Based CAD System 基于特征的CAD系统并行成本计算

Conceptual and Innovative Design for Manufacturing Pub Date : 1999-11-14 DOI: 10.1115/imece1999-0790

Peter Leibi, G. Hoehne, M. Hundal

{"title":"Concurrent Cost Calculations With a Feature-Based CAD System","authors":"Peter Leibi, G. Hoehne, M. Hundal","doi":"10.1115/imece1999-0790","DOIUrl":"https://doi.org/10.1115/imece1999-0790","url":null,"abstract":"\u0000 The paper describes a procedure for calculating costs concurrent with the design process. The different modules of the computer program “IKF” are described. The modules include those for cost calculation, comparison and forecast. Form features are used for cost determination by classifying each feature and storing it in the detailed production plan. The production processes then follow from the list of stored features. The cost program takes the individual geometric data, e.g., part length, from the CAD program. The latter contains data sets, that describe the feature’s dimensions. The production time for the form feature is then calculated. From the time expenditures and the machine rates the program calculates the production costs for the given feature. Prior to developing the computer program a manual procedure was designed and developed. Upon testing, the group not using IKF took 40–50% more time and designed products that were about 80% costlier than the group using the IKF system. This procedure was then used as the model for the cost modules in a feature-based CAD program. Test cases dealing with sheet-metal design are described which demonstrate and quantify the advantages of this system.","PeriodicalId":166122,"journal":{"name":"Conceptual and Innovative Design for Manufacturing","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122680228","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

Robust Design: Tolerance Design Method 稳健设计:公差设计方法

Conceptual and Innovative Design for Manufacturing Pub Date : 1999-11-14 DOI: 10.1115/imece1999-0792

Hanxiang Yang, Pah I. Chen

{"title":"Robust Design: Tolerance Design Method","authors":"Hanxiang Yang, Pah I. Chen","doi":"10.1115/imece1999-0792","DOIUrl":"https://doi.org/10.1115/imece1999-0792","url":null,"abstract":"\u0000 There are three phases involved in Robust Design — conceptual design, parameter design, and tolerance design. Parameter design aims to specify the variations of the design parameters in order to meet the design requirement, and the tolerance design further specifies the optimized parameters in order to reduce the performance variation near the design target. A robust design requires that tolerance design to be preceded by parameter design.\u0000 In this paper, our effort will be focused on presenting an iterative method to perform the tolerance design phase. Two hypothetical examples (whose parameter designs have been completed) will be used to illustrate the tolerance design methodology. The first example involves the design of a pneumatic cylinder whose piston movement can be expressed by a theoretical equation containing five parameters. With the equation, it becomes a simple task for determining the tolerances of the optimized parameters to constrain the design target. The second example involves the production of a agrochemical by mixing two chemicals to achieve a specific yield. A set of test data is available but the equation relating the parameters is not. In this case, we shall adopt the linear regression technique to obtain an experimental equation to represent the test data. Based on this equation, we can proceed to determine the tolerances of different parameters in order to achieve a specific variation of the yield.\u0000 The step-by-step procedure outlined in the hypothetical examples demonstrates that this iterative method is a simple and effective way to conduct the tolerance design.","PeriodicalId":166122,"journal":{"name":"Conceptual and Innovative Design for Manufacturing","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116483219","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

A Model for Conceptual Design Methodology 概念设计方法论模型

Conceptual and Innovative Design for Manufacturing Pub Date : 1999-11-14 DOI: 10.1115/imece1999-0788

S. Condoor, Richard G. Weber

{"title":"A Model for Conceptual Design Methodology","authors":"S. Condoor, Richard G. Weber","doi":"10.1115/imece1999-0788","DOIUrl":"https://doi.org/10.1115/imece1999-0788","url":null,"abstract":"\u0000 Conceptual design is the seminal phase in the design process. This phase determines the level of product innovation, the efficiency of the product, and the effectiveness of the down-stream stages of the design process. It has tremendous leverage on the final product performance, cost, and time-to-market. To improve the efficiency of the conceptual design process, the paper combines the parameter analysis methodology with a fundamental insight from robust design. Parameter analysis is a generic design methodology that aids in systematically developing an idea into a viable design. It is particularly useful in creating innovative conceptual designs. Robust design is, often, used after finalizing the conceptual design. Robust design improves the product quality by first reducing the variability in product performance and then, tuning the low variability performance onto the target. The paper presents guidelines for executing the parameter analysis methodology which in turn provides consistent or low variability performance by considering robustness in the very early phases of the design process. The paper illustrates this process with two case studies. The case studies also show how to qualitatively optimize a conceptual design by developing the overall concept before details.","PeriodicalId":166122,"journal":{"name":"Conceptual and Innovative Design for Manufacturing","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126293599","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

Some Limitations of TRIZ Tools and Possible Ways of Improvement TRIZ工具的一些局限性和可能的改进途径

Conceptual and Innovative Design for Manufacturing Pub Date : 1999-11-14 DOI: 10.1115/imece1999-0793

V. Kosse

引用次数: 0

Robust Tolerance Design Considering Process Capability and Quality Loss 考虑加工能力和质量损失的鲁棒公差设计

Conceptual and Innovative Design for Manufacturing Pub Date : 1999-11-14 DOI: 10.1115/imece1999-0783

Chang-Xue Feng, Ravi Balusu

引用次数: 5

A Study of the Impact of Knurling Parameters on Knurl Quality With the Design of Experiments Approach 用试验设计方法研究滚花参数对滚花质量的影响

Conceptual and Innovative Design for Manufacturing Pub Date : 1999-11-14 DOI: 10.1115/imece1999-0784

Chang-Xue Feng, Chinh Tran

引用次数: 1