Publication View. 31948350. Adaptive search and the preliminary design of gas turbine blade cooli... more Publication View. 31948350. Adaptive search and the preliminary design of gas turbine blade cooling systems. (1997). Roy, Rajkumar. Abstract. Thesis (Ph. D.)--University of Plymouth, 1997. Publication details. Download, http://worldcat.org/oclc/53675393. ...
This paper describes the development of a cost estimating methodology for predicting the cost of ... more This paper describes the development of a cost estimating methodology for predicting the cost of engineering design effort during the conceptual stages of product development. The research was carried out within a large European aerospace manufacturer whose traditional costing practices had become outdated. The main objective was to generate a suite of technical Cost Estimating Relationships (CERs) that integrate both quantitative and qualitative, non-recurring airframe engineering input, for the design process. Both the quantitative and qualitative design activities were separated during the CER development. At the end of the development process they were integrated to produce a final CER. The results demonstrate that these newly generated CERs can predict future design effort required, based on the typically limited product definition at the conceptual design stage.
... Advances in soft computing: Engineering design and manufacturing. Post a Comment. CONTRIBUTOR... more ... Advances in soft computing: Engineering design and manufacturing. Post a Comment. CONTRIBUTORS: ... PAGES (INTRO/BODY): 638 p. SUBJECT(S): Engineering design; Softcomputing; Intelligent control systems; Data processing. DISCIPLINE: No discipline assigned. ...
Expert Judgement (EJ) is used extensively during the generation of cost estimates. Cost estimator... more Expert Judgement (EJ) is used extensively during the generation of cost estimates. Cost estimators have to make numerous assumptions and judgements about what they think a new product will cost. However, the use of EJ is often frowned upon, not well accepted or understood by non-cost estimators within a concurrent engineering environment. Computerised cost models, in many ways, have reduced the need for EJ but by no means have they, or can they, replace it.
Concurrent engineering environments affect the cost estimating and engineering capability of an o... more Concurrent engineering environments affect the cost estimating and engineering capability of an organisation. Cost estimating tools become outdated and need changing in order to reflect the new environment. This is essential, since cost estimating is the start of the cost management process and influences the 'go', 'no go' decisions concerning a new product development. This paper examines both traditional and more recent developments in order to highlight their advantages and limitations. The analysis includes parametric estimating, feature based costing, artificial intelligence, and cost management techniques. This study was deemed necessary because recent investigations carried out by Cranfield University highlighted that many concurrent engineering companies are not making efficient, wide spread use of existing estimating and cost management tools. In order to promote more efficient use of the discussed estimating processes within the twenty first century, this paper highlights the work of a leading European aerospace manufacturer and their efforts to develop a more seamless estimating environment. Furthermore, a matrix is developed that illustrates particular concurrent engineering environments to which each technique is aptly suited.
A business incurs much higher charges when attempting to win new customers than to retain existin... more A business incurs much higher charges when attempting to win new customers than to retain existing ones. As a result, much research has been invested into new ways of identifying those customers who have a high risk of churning. However customer retention efforts have also been costing organisations large amounts of resource. In response to these issues, the next generation of churn management should focus on accuracy. A variety of churn management techniques have been developed as a response to the above requirements. The focus of this paper is to review some of the most popular technologies that have been identified in the literature for the development of a customer churn management platform. The advantages and disadvantages of the identified technologies are discussed, and a discussion on the future research directions is offered.
Abstract Purpose The aim of this research paper is to present the critical factors that constit... more Abstract Purpose The aim of this research paper is to present the critical factors that constitute a successful implementation of lean manufacturing within manufacturing SMEs. Design/methodology/approach A combination of comprehensive literature review and ...
Publication View. 31948350. Adaptive search and the preliminary design of gas turbine blade cooli... more Publication View. 31948350. Adaptive search and the preliminary design of gas turbine blade cooling systems. (1997). Roy, Rajkumar. Abstract. Thesis (Ph. D.)--University of Plymouth, 1997. Publication details. Download, http://worldcat.org/oclc/53675393. ...
This paper describes the development of a cost estimating methodology for predicting the cost of ... more This paper describes the development of a cost estimating methodology for predicting the cost of engineering design effort during the conceptual stages of product development. The research was carried out within a large European aerospace manufacturer whose traditional costing practices had become outdated. The main objective was to generate a suite of technical Cost Estimating Relationships (CERs) that integrate both quantitative and qualitative, non-recurring airframe engineering input, for the design process. Both the quantitative and qualitative design activities were separated during the CER development. At the end of the development process they were integrated to produce a final CER. The results demonstrate that these newly generated CERs can predict future design effort required, based on the typically limited product definition at the conceptual design stage.
... Advances in soft computing: Engineering design and manufacturing. Post a Comment. CONTRIBUTOR... more ... Advances in soft computing: Engineering design and manufacturing. Post a Comment. CONTRIBUTORS: ... PAGES (INTRO/BODY): 638 p. SUBJECT(S): Engineering design; Softcomputing; Intelligent control systems; Data processing. DISCIPLINE: No discipline assigned. ...
Expert Judgement (EJ) is used extensively during the generation of cost estimates. Cost estimator... more Expert Judgement (EJ) is used extensively during the generation of cost estimates. Cost estimators have to make numerous assumptions and judgements about what they think a new product will cost. However, the use of EJ is often frowned upon, not well accepted or understood by non-cost estimators within a concurrent engineering environment. Computerised cost models, in many ways, have reduced the need for EJ but by no means have they, or can they, replace it.
Concurrent engineering environments affect the cost estimating and engineering capability of an o... more Concurrent engineering environments affect the cost estimating and engineering capability of an organisation. Cost estimating tools become outdated and need changing in order to reflect the new environment. This is essential, since cost estimating is the start of the cost management process and influences the 'go', 'no go' decisions concerning a new product development. This paper examines both traditional and more recent developments in order to highlight their advantages and limitations. The analysis includes parametric estimating, feature based costing, artificial intelligence, and cost management techniques. This study was deemed necessary because recent investigations carried out by Cranfield University highlighted that many concurrent engineering companies are not making efficient, wide spread use of existing estimating and cost management tools. In order to promote more efficient use of the discussed estimating processes within the twenty first century, this paper highlights the work of a leading European aerospace manufacturer and their efforts to develop a more seamless estimating environment. Furthermore, a matrix is developed that illustrates particular concurrent engineering environments to which each technique is aptly suited.
A business incurs much higher charges when attempting to win new customers than to retain existin... more A business incurs much higher charges when attempting to win new customers than to retain existing ones. As a result, much research has been invested into new ways of identifying those customers who have a high risk of churning. However customer retention efforts have also been costing organisations large amounts of resource. In response to these issues, the next generation of churn management should focus on accuracy. A variety of churn management techniques have been developed as a response to the above requirements. The focus of this paper is to review some of the most popular technologies that have been identified in the literature for the development of a customer churn management platform. The advantages and disadvantages of the identified technologies are discussed, and a discussion on the future research directions is offered.
Abstract Purpose The aim of this research paper is to present the critical factors that constit... more Abstract Purpose The aim of this research paper is to present the critical factors that constitute a successful implementation of lean manufacturing within manufacturing SMEs. Design/methodology/approach A combination of comprehensive literature review and ...
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Papers by Rajkumar Roy