Closed Loop Tolerance Engineering – A Relational Model Connecting Activities of Product Development

Krogstie, Lars; Martinsen, Kristian

doi:10.1016/j.procir.2012.07.089

Cited by 12 publications

(10 citation statements)

References 6 publications

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“…It would be better yet, if advice were automated to show the designer explicit flaws and suggest potential improvements to the product. in product development [19]. The CLTE model has its origin in a survey within both the design and manufacturing units of a manufacturing company.…”

Section: Logicalmentioning

confidence: 99%

End-to-End Quality Information Framework (QIF) Technology Survey

Michaloski¹,

Hedberg²,

Huang³

et al. 2016

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Section: Logicalmentioning

confidence: 99%

End-to-End Quality Information Framework (QIF) Technology Survey

Michaloski¹,

Hedberg²,

Huang³

et al. 2016

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“…It has gained importance with the introduction of serial production, requiring part interchangeability and process independence, and is nowadays becoming more crucial in order to enable customized product development and mass customization. It is to a common understanding, that this process starts with defining functional requirements, which are often referred to as (functional) key characteristics [6], and ends with confirming the product performance [1]. Therefore, many stakeholders and actors are involved, who process various information, perform many activities, and use in-depth tools.…”

Section: The Closed Loop Tolerance Engineering Modelmentioning

confidence: 99%

“…The closed loop tolerance engineering model as illustrated in Fig. 1 reduces the complexity behind the geometric variations management process to four vital activities, namely the definition of functional requirements, tolerancing, the consideration of process capabilities, and the validation of the product performance [1,2]. The first two of these activities build up the normative dimension, whereas the latter two comprise the empirical dimension, i. e. the normative dimension focuses on defining geometric specifications; the empirical dimension focuses on how to enforce and monitor them in reality [1].…”

Section: The Closed Loop Tolerance Engineering Modelmentioning

confidence: 99%

“…This is because product design, tolerance design, and process design are highly connected and cannot be performed efficiently without considering their mutual effects. In this regard, the Closed Loop Tolerance Engineering (CLTE) model as introduced by Krogstie et al [1,2] highlights the main activities during geometric variations management and can be used to analyse the relations between different actors in tolerance engineering. The model focuses on the organizational prerequisites for effective and efficient geometric variations management without implicating support by computer-aided tools.…”

Section: Introductionmentioning

confidence: 99%

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How can Computer Aided Tolerancing Support Closed Loop Tolerance Engineering?

Schleich

Wartzack

2014

Procedia CIRP

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Since geometric deviations decrease the quality and functional compliance of mechanical products, geometric variations management is an important issue for quality-aware companies in all phases of the product life-cycle. In this regard, the Closed Loop Tolerance Engineering Model highlights the main activities during geometric variations management and can be used to analyse the relations between the different involved actors. Though computer aided engineering tools are widely spread in product development practice with the aim to ease product design and analysis, these tools are mainly used separately and are not integrated in a coherent virtual geometric variations management process. Therefore, in this paper, the prerequisites for a holistic computer aided tolerancing process during product development based on the CLTE model are analysed. The main question answered is, which tolerance simulation tools are required and how should they be connected in order to enable a coherent and integrated computer-aided tolerancing process. Based thereon, important software tools are identified and drawbacks as well as main potentials for improvement are carved out. The novelty of the contribution can be found in the consideration of the geometric variations management process from a computer-aided tolerancing point of view and in addressing possible improvements for the development of software tools for a coherent and complete computer aided geometric variations management process.

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“…This research explores the relevance of the CLTE-model previously articulated in [49], and applied in [50], but now from the PD-perspective with a focus on tolerance specification complexity supported by variation analysis. The CLTE-model displays how good tolerance engineering ranges over several central activities in PD and emphasizes its integrated nature and the need to focus on the human aspects beyond the technical tools.…”

Section: Activities Of Closed Loop Tolerance Engineeringmentioning

confidence: 99%

Variation Analysis in Collaborative Engineering; an Industrial Case Study of Rocket Motor Development

2014

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Considerably less research is found on tolerance specifications compared to research on tolerance analysis and synthesis. Where tolerance analysis and synthesis often can be completely understood based on technical input we argue that an extended research approach is needed to understand tolerance specification complexity. We have aimed to understand the Research Question (RQ) "How does variation analysis support tolerance specification during collaborative Product Development (PD)"? For this case study of the Product Development Process (PDP) of a rocket motor within the defense industry we have used interviews, observations, participation and secondary sources during data gathering. We found that collaborative gathering of input for the simulation generates useful knowledge for the project at an early stage. Further, that swiftly and precisely done variation analysis generates output supporting frequent and cross functional communication on tolerances. We see the enabled fact based decision making as an important factor to PD success.

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Closed Loop Tolerance Engineering – A Relational Model Connecting Activities of Product Development

Cited by 12 publications

References 6 publications

End-to-End Quality Information Framework (QIF) Technology Survey

End-to-End Quality Information Framework (QIF) Technology Survey

How can Computer Aided Tolerancing Support Closed Loop Tolerance Engineering?

Variation Analysis in Collaborative Engineering; an Industrial Case Study of Rocket Motor Development

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