A Methodology for the Parametric Exploration of the Impact of Production Planning on the Early Stages of Design

Siedlak, Dennis J. L.; Schmidt, Todd M.; Pinon, Olivia J.; Mavris, Dimitri N.

doi:10.1115/msec2014-3974

Cited by 7 publications

(1 citation statement)

References 23 publications

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“…Recent research also poses issues of production operation planning for product-production variety coordination using other production modeling software (Gong et al, 2017). Similarly, Siedlak et al (2014) show how different software, for parametric design, production costing and production operation planning, can be combined to ensure that a design meets performance requirements and proves to be producible. Research that proposes both rule-based followed by simulation-based producibility assessments of product-production varieties are rare or even non-existent.…”

Section: Discussionmentioning

confidence: 99%

Dynamic platform modeling for concurrent product-production reconfiguration

Landahl

Jiao

Madrid

et al. 2020

Concurrent Engineering

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To meet a wide range of customer needs, a variety of product concepts can be modeled employing a platform approach. Whereas frequent market changes can be accommodated by dynamically modifying product concepts in iterations, capabilities in production are seldom well incorporated as part of design iterations. In this paper, a dynamic platform modeling approach that supports concurrent product-production reconfiguration is presented. The approach builds on Set-Based Concurrent Engineering (SBCE) processes and a function modeling technique is used to represent product-production variety streams inherent in a production operation model. To demonstrate the approach, a comprehensive case from the aerospace industry is presented. Conceptual representations of a set of aero engine sub-systems and a variety of welding configurations, including their inherent constraints, are mutually modeled and assessed. The results show that a set of product-production alternatives can be dynamically controlled by integrating product-production constraints using a production operation model. Following SBCE processes, inferior alternatives can be put aside until new information becomes available and a new set of alternatives can be reconfigured. The dynamics and concurrency of the approach can potentially reduce the risk of late and costly modifications that propagate from design to production.

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Section: Discussionmentioning

confidence: 99%

Dynamic platform modeling for concurrent product-production reconfiguration

Landahl

Jiao

Madrid

et al. 2020

Concurrent Engineering

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A digital thread approach to support manufacturing-influenced conceptual aircraft design

et al. 2017

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Supporting Affordability-Based Design Decisions in the Presence of Demand Variability

Siedlak

Schlais

Pinon

et al. 2015

Volume 2: Materials; Biomanufacturing; Properties, Applications and Systems; Sustainable Manufacturing

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In the years since the Cold War, the aerospace industry has seen a shift towards affordability-based design from the primarily performance-based designs of the past era. While many techniques, such as IPPD and PLM, have been implemented in support of this shift, recent developments in the industry have led to major cost overruns and production delays. The increased prevalence of demand variability in the aerospace industry and the difficulty to rapidly adapt production plans are a primary cause of these issues. Furthermore, traditional aircraft designers perform detailed manufacturing cost analysis late in the design process when the majority of the program costs are already committed. With the recent shift to more composite aerostructures, historical regressions and cost estimating relationships used to predict cost and manufacturability are no longer accurate, so postponing more detailed cost analyses to later design phases can lead to high costs due to sub-optimal early design decisions. The methodology presented in this paper addresses these problems by providing the ability to conduct multi-disciplinary trades in the early stages of design, when a large amount of design freedom and cost savings opportunities exist. To enable these multi-disciplinary trades, this paper describes how aircraft performance considerations are integrated with production rate, manufacturing cost, and financial planning metrics into a parametric, visual trade-off environment. The environment, combined with a multi-objective optimization routine, facilitate effective affordability-based trades during the early stages of design. An F-86 Sabre redesigned wingbox using 3 separate manufacturing concepts is used as a proof-of-concept for this research.

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A Methodology for the Parametric Exploration of the Impact of Production Planning on the Early Stages of Design

Cited by 7 publications

References 23 publications

Dynamic platform modeling for concurrent product-production reconfiguration

Dynamic platform modeling for concurrent product-production reconfiguration

A digital thread approach to support manufacturing-influenced conceptual aircraft design

Supporting Affordability-Based Design Decisions in the Presence of Demand Variability

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