Tackling with redundant design solutions through axiomatic design

Gonçalves-Coelho, António; Neştian, Gabriela; Cavique, Miguel; Mourão, António

doi:10.1007/s12541-012-0241-x

Cited by 15 publications

(12 citation statements)

References 6 publications

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“…The DPs for these functions are the following: DP31 -Cooler; DP32 -Vibrating screen; DP33 -Pellet bagging machine (Figure 8). The post-production phase has the design equation presented in expression (5), which represents an uncoupled design. .…”

Section: Decomposition Of Fr3 -Prepare Pellets For Deliverymentioning

confidence: 99%

“…Under this framework, independence is a characteristic that the designer always must seek during the design process. To do so, several strategies are possible to follow, namely: -Increase FRs tolerances; -Select a different set of DPs -Redefine Customer Needs (CN) or Constraints (C) with the stakeholders; -Optimize the design; -Add some DPs in order to achieve independence for some FRs [5]. Although not always possible, coupling must be avoided as it means complexity.…”

Section: Introductionmentioning

confidence: 99%

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An axiomatic approach to the design and operation of a wood pellet production line

et al. 2019

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With the recent search for sustainable energies, the use of forest residues has never been so important and profitable. Biomass production companies are in a constant search for new methods to reuse what is otherwise seen as waste. In this context, wooden pellets have been a booming market. In Portugal, its production increased from 400 000 to 1 200 000 metric tons per year in the period 2008-2014. This production represents a growth of 300% in 6 years, most of it used for exportation. The manufacturing process is empiric and lacks a scientific approach. In this paper, Axiomatic Design is used to analyse a production line of wooden pellets aiming to identify couplings, both in the equipment and in the production process, and to propose solutions that follow the independence axiom.

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Section: Decomposition Of Fr3 -Prepare Pellets For Deliverymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

An axiomatic approach to the design and operation of a wood pellet production line

et al. 2019

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“…Looking for an alternative approach, the following functional requirements were defined: This system represents a redundant decoupled design as it has a right-trapezoidal design matrix [9].…”

Section: Drying Efficiencymentioning

confidence: 99%

An axiomatic approach to a cork granulation facility design

Martins¹,

Fradinho²,

Cavique

et al. 2018

MATEC Web Conf.

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In the conceptual step of any industrial design, there is a considerable amount of decisions that directly affect the quality of the final product. These decisions are often made with lack of knowledge about the subjects, limitative trains of thought and repetition of traditional solutions. The present paper is focused on the use of Axiomatic Design in the design of a cork granulation industrial plant, with a particular emphasis on the Independence Axiom. An innovative design solution was made, aiming to reduce or overcome the current issues and to reevaluate many of the decisions made in the past. In this study, some parts of the production process were analysed. The verified lack of independency gave rise to new design solutions and consequently to a better production process.

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“…According to AD's theorem 1, designs with m > n are coupled, while designs with m < n are redundant. Redundant designs can be reduced to uncoupled designs or to decoupled designs, or even to coupled designs, as per AD's theorem 3 [5], depending on the manner their design matrices are populated [6].…”

Section: Introductionmentioning

confidence: 99%

“…The greyed area represents the so-called common range of the design. The probability density function relates to the probability of success of the system, so that the whole area of the system range is such that (3) The probability of the design fulfilling the FR within the design range is given by (4) The information content of the design, I, expressed in bit, is computed trough (5) For the case of an m-FR design, the total probability of success, p T , is (6) where p i is the probability of success of FR i .…”

Section: Introductionmentioning

confidence: 99%

How to Compute the Information Content of 3-FR, 3-DP Decoupled Designs with Uniform Probability Density Functions for Their FRs

et al. 2017

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Abstract. The computation of the information content of decoupled designs implies the use of conditional probability, because the existing design parameters must be adjusted in a certain order, as to fulfil all the existing functional requirements at the first trial. Nevertheless, the computation of the information content is hard to perform when the system range of the functional requirements is denoted by probability density functions. In their works, Suh and Park proposed a graphical method to compute the information content of 2-FR, 2-DP decoupled designs when the probability density functions of the FRs are uniform. This paper introduces an extension to the Suh and Park's previous findings. It presents a method that uses analytical and descriptive geometry techniques to compute the information content of 3-FR, 3-DP decoupled designs with uniform probability density distributions of their FRs, and an illustrative example is presented as well.

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Tackling with redundant design solutions through axiomatic design

Cited by 15 publications

References 6 publications

An axiomatic approach to the design and operation of a wood pellet production line

An axiomatic approach to the design and operation of a wood pellet production line

An axiomatic approach to a cork granulation facility design

How to Compute the Information Content of 3-FR, 3-DP Decoupled Designs with Uniform Probability Density Functions for Their FRs

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