Design for Six Sigma (DFSS) for Optimization of Automotive Heat Exchanger and Underhood Air Temperature

Kim

Journal of Civil Engineering and Management

et al. 2020

System form is widely used when constructing concrete buildings and structures because it has high productivity and good concrete casting quality compared with traditional hand-set form. However, from a worker’s perspective, system form is still very harsh to handle because of its heavy weight, noise generation, and use of releasing agent, and it also attenuates the productivity of system formwork. Therefore, this study proposes the use of an advanced composite material-based concrete form for workers using a Design for Six Sigma (DFSS) process to improve constructability of system formwork. User requirements are systematically reflected in the technical characteristics of concrete form, and innovative principles are scientifically organized through the DFSS process that mainly consists of quality function deployment and theory of creative problem-solving methods. The proposed composite form showed improved performance in deriving high-quality formwork and worker-friendly working conditions compared with previous system forms. Additionally, this study demonstrated how the DFSS will be a valuable tool for technology development and systematic decision-making in building construction.

Section: Design For Six Sigma (Dfss)mentioning

confidence: 99%

Development of an Advanced Composite System Form for Constructability Improvement Through a Design for Six Sigma Process

Kim

Journal of Civil Engineering and Management

et al. 2020

Applied Thermal Engineering

“…El-Sharkawy et al from Chrysler Group LLC [83] presented a new design methodology for automotive heat exchangers which permits to maintain an optimal coolant temperature and to limit the vehicle underhood air temperature within a tolerable limit. On the other hand, Song et al from Hyundai-Kia America Technical Center Inc [84] discussed the integrated low temperature coolant LTC loop configuration and others.…”

Section: Cooling Modulementioning

confidence: 99%

Review of underhood aerothermal management: Towards vehicle simplified models

Khaled

Ramadan

El-Hage

et al. 2014

The International Conference on Applied Mechanics and Mechanica

“…al. [11] optimized the design of automotive heat exchangers using DFSS. Also, the design of exhaust manifold at Ford motor company using DFSS has been conducted by Gerhorst et.…”

Section: Introductionmentioning

confidence: 99%

Design of a Combined Tube Feeding and Cutting Mechanism Using Design for Six Sigma Approach

Khader

Nada

Attia

2018

Design for Six Sigma (DFSS) is a proactive approach that aims at designing in quality during the early stages of product or process development. In this paper, the DMADV (Define-Measure-Analyze-Design-Verify) methodology has been applied to an industrial process. The considered application involves cutting tubes to predefined lengths in order to be supplied to custom-made automotive exhaust tube manufacturers. Investigating the process reveals several problems that adversely affect the production. Accordingly, customer requirements have been identified and the Quality Function Deployment (QFD) has been implemented to translate these requirements into technical characteristics. A conceptual design of a compound mechanism for both feeding and cutting has been suggested to overcome the drawbacks in the current practice. A detailed 3D CAD model has been developed, in addition to a prototype that has been manufactured to test the validity of the proposed design. Pilot runs of the prototype reveal that the developed mechanism not only performs its intended task adequately, but also the chances of cutting wrong tube lengths have been eliminated.