Hierarchical product platform design: a domain-independent approach

Pedersen, Kjartan; Messer, Matthias; Allen, Janet K.; Mistree, Farrokh

doi:10.1080/17445302.2012.748250

Cited by 5 publications

(2 citation statements)

References 9 publications

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“…They also want to mention Nayak et al [10] who present a VBPDM, which aims to satisfy a range of performance requirements using the smallest variation of product designs in the family. It is also important to mention the works of Claesson et al [11], who modelled product platforms using configurable components and the paper from Pedersen et al [12], who present a systematic domain-independent engineering approach to design hierarchical product platforms based on similarity or commonality within complex engineering systems. Secondly, some methodologies are mentioned for the evaluation and validation of product variants.…”

Section: Literature Reviewmentioning

confidence: 99%

A Unified Approach in System Architecture Development During Energy Efficient Design of Cooling Plants

Osman¹,

Jankovich²

2020

J. sustain. dev. energy water environ. syst.

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This paper aims to present the approach to the creation and rendering of a detailed solution for cooling plants including all supporting documents. The paper presents all steps and specific sub steps of the presented approach and the approach has been verified on an example of a cooling plant with water-cooled chillers in the pharmaceutical industry. The authors were motivated to use such approach to find an expedient and high-quality solution for the system architecture. They believe that optimal cooling plant system architecture can be provided by an adequate selection of the required equipment and all system parameters it needs to comply with, through two phases of evaluation analysis, including all supporting technical documents. The approach is based on the designers' engineering knowledge and years of experience in this field. It is based on a so-called Configuration and Change Management approach where the required/acceptable solution is provided by configuring the product and changing product properties through several loopback steps. The approach is quite comprehensive and complex, however, it produces a satisfactory solution with well presented results, which makes it applicable to the creation of new cooling plants.

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Section: Literature Reviewmentioning

confidence: 99%

A Unified Approach in System Architecture Development During Energy Efficient Design of Cooling Plants

Osman¹,

Jankovich²

2020

J. sustain. dev. energy water environ. syst.

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“…This method re-uses domain knowledge in a new design, and provides rational advice for increasing the design efficiency due to improvements in the workflow of ship design. Pedersen (2013) proposes a systematic domain-independent method to design complex structures based on their hierarchical organization. This method enables effective and efficient design, numerical taxonomy to identify patterns of similarity in existing designs, technology diffusion to evaluate design processes, and multi-objective decisions regarding structures, design process, operational performance and cost.…”

Section: Introductionmentioning

confidence: 99%

Ultimate limit state-based multi-objective optimum design technology for hull structural scantlings of merchant cargo ships

Kim

Paik

2017

Ocean Engineering

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As the ultimate limit state is now a primary criterion for ship structural design, multi-objective optimization techniques for both minimizing weight and maximizing safety are routine practices in the structural design of naval ships as such techniques are critical for determining the structural weight needed to meet the functional requirements associated with naval armaments. However, a comparative approach is still used in the structural design of merchant cargo ships, based on measurements from existing as-built reference ships. This comparative approach obviously needs to be upgraded, because it requires more man-hours and causes more design errors than a fully automated design procedure. The comparative approach may also lead to inadequate design results, in which some structural members are too strong, and others barely satisfy the strength criteria, which can lead to catastrophic failures in some cases. The aim of this paper is to develop a fully automated methodology for the optimum design of hull structural scantlings for merchant cargo ships that are modelled by plate-shell finite elements. A full optimization technique with multi-objectives is applied for minimizing structural weight and maximizing structural safety, as per design constraints associated with the ultimate limit states of the plate panels, support members and hull girders. The developed procedure is applied to the hull structural scantlings of a very large crude oil carrier (VLCC), and this test demonstrates the procedure's capacity to meet the strength requirements of common structural rules. A 2 comparison between the new design and an as-built reference ship is made, confirming that the proposed procedure reduces the number of man-hours required by about 20%, lightens the structural weight by 3% and improves the safety factors for the critical members.

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Optimize or satisfice in engineering design?

Guo,

Allen,

Mistree

2024

Res Eng Design

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In this paper, we address the issue of whether to optimize or satisfice in model-based engineering design. When dealing with operations research problems in the context of engineering design, one may encounter (i) nonlinear, nonconvex objectives and constraints, (ii) objectives with different units, and (iii) computational models that are abstractions of reality and fidelity, Seeking a single-point optimal solution that meets the necessary and sufficient Karush–Kuhn–Tucker (KKT) conditions makes it impossible to obtain a solution that satisfies all the targeted goals. Instead, a method to identify satisficing solutions that satisfies necessary KKT condition but not the sufficient condition is proposed. These solutions are relatively robust, easy to acquire, and often good enough. In this paper, we demonstrate the combined use of the compromise Decision Support Problems and the adaptive linear programming algorithm, as proposed by Mistree and co-authors. This method is appropriate in formulating design problems and obtaining solutions that satisfy only the necessary KKT condition. Further, the use of the proposed method circumvents complications associated with the use of gradient-based optimization algorithms typically used to solve optimization problems. We discuss the efficacy of our proposed method using four test problems to illustrate how the satisficing strategy outperforms the optimizing strategy in model-based engineering design.

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Hierarchical product platform design: a domain-independent approach

Cited by 5 publications

References 9 publications

A Unified Approach in System Architecture Development During Energy Efficient Design of Cooling Plants

A Unified Approach in System Architecture Development During Energy Efficient Design of Cooling Plants

Ultimate limit state-based multi-objective optimum design technology for hull structural scantlings of merchant cargo ships

Optimize or satisfice in engineering design?

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