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A Methodology for Optimizing Modular Design Considering Product End of Life Strategies
Novita Sakundarini,Zahari Taha,Raja Ariffin Raja Ghazilla,Salwa Hanim Abdul Rashid 한국정밀공학회 2015 International Journal of Precision Engineering and Vol. No.
Product modularity is a concept of clustering the independent components into logical units that are relatively independent to each other in functions. With the growing interest in environmental protection, the inclusion of product end of life issues during product design has been seen as a promising method to improve product utilization after its retirement. There are very few methodologies that deal with modularity at the conceptual design stage in which incorporate product end of life strategies and end of life cost in the literature. The lack of information during conceptual design will cause failure in overcoming drawbacks that will be apparent later in the detail design. The motivation of this study is to identify the relationship between product end of life strategies and modular design, and to formulate an optimization method to assist designers in designing products with appropriate end of life strategies to reduce environmental impact during product retirement. This paper proposes a practical method in optimizing modular design with different end of life strategies by using an Excel based approach that will be usable by designers.
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Optimization of Product Design to Reduce Environmental Impact of Machining
Taha, Zahari,Gonzales, Julirose,Sakundarini, Novita,Ghazila, Raja Ariffin Raja,Rashid, Salwa Abdul Korean Institute of Industrial Engineers 2011 Industrial Engineeering & Management Systems Vol.10 No.2
This paper presents a study on product design optimization to reduce the environmental impact of machining. The objective is to analyze the effect of changing the product design parameters such as its dimensions, and basic features on the environmental impact of machining process in terms of its energy consumption, waste produced and the chemicals and other consumables used up during the process. To realize this objective, we used a CAD model of a product with different design scenarios, and analyze their energy consumption using an environmental impact calculator method developed. The waste produced, and the consumables used up, such as lubricants and coolants were analyzed using environmental emission factors. Optimization methods using Genetic Algorithm and Goal Programming are applied to the product design parameters in order to get the best possible product dimensions with the least environmental impact of the machining process.
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Drivers for the Adoption of Sustainable Manufacturing Practices: A Malaysia Perspective
Salwa Hanim Abdul Rashid,Novita Sakundarini,Raja Ariffin Raja Ghazilla,T. Ramayah 한국정밀공학회 2017 International Journal of Precision Engineering and Vol.18 No.11
Sustainable manufacturing aims to reduce environmental impacts during manufacturing activities by implementing strategies such as waste minimization, resource efficiency, pollution prevention, energy efficient manufacturing processes, and end of life management. Although sustainable manufacturing is being practiced and widely studied in developed countries, its advocation and implementation is still in its infancy in developing nations. This research aims to provide an insight into drivers to the adoption of sustainable practices in developing nations, specifically in Malaysia. A cross sectional survey was conducted among various manufacturing company in Malaysia and the data collected was analysed using structural equation modelling (SEM). The results show that competitiveness, company culture and public awareness has positive impact on sustainable manufacturing practices. Furthermore, the supply chain management was identified as the most importance practice in the implementation of sustainable manufacturing. The findings and recommendations from this research can facilitate manufacturing companies in Malaysia in their decision making processes on the possible changes in policies and operational process for the implementation of sustainable manufacturing practices in their organization.
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Optimization of Product Design to Reduce Environmental Impact of Machining
Zahari Taha,Julirose Gonzales,Novita Sakundarini,Raja Ariffin Raja Ghazila,Salwa Abdul Rashid 대한산업공학회 2011 Industrial Engineeering & Management Systems Vol.10 No.2
This paper presents a study on product design optimization to reduce the environmental impact of machining. The objective is to analyze the effect of changing the product design parameters such as its dimensions, and basic features on the environmental impact of machining process in terms of its energy consumption, waste produced and the chemicals and other consumables used up during the process. To realize this objective, we used a CAD model of a product with different design scenarios, and analyze their energy consumption using an environmental impact calculator method developed. The waste produced, and the consumables used up, such as lubricants and coolants were analyzed using environmental emission factors. Optimization methods using Genetic Algorithm and Goal Programming are applied to the product design parameters in order to get the best possible product dimensions with the least environmental impact of the machining process.
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Siti Zawiah Md Dawal,Farzad Tahriri,Yap Hwa Jen,Keith Case,Nguyen Huu Tho,Aliq Zuhdi,Maryam Mousavi,Atefeh Amindoust,Novita Sakundarini 한국정밀공학회 2015 International Journal of Precision Engineering and Vol. No.
This paper presents significant empirical evidence on the relationship between Advanced Manufacturing Technology (AMT) practices and sustainable environmental initiatives with the manufacturing capabilities of automotive SMEs in Malaysia. A cross-sectional survey is adopted in this study, which involves 83 Malaysian automotive SMEs. Two hypotheses are proposed in this study, i.e. Hypothesis 1: There are positive effects of AMT practices on the manufacturing capabilities of SMEs and Hypothesis 2: There are positive effects of sustainable environmental initiatives on the manufacturing capabilities of SMEs. The results obtained from the pairwise correlation analysis indicate that both AMT practices and sustainable environmental initiatives have positive effects on manufacturing capabilities, which support both hypotheses. In addition, it is found that 50% of the SMEs implement AMT for flexibility and cost reduction in the past five years. It is also found that more than 80% sustainable practices are adopted in most of the SMEs with the exception of Life Cycle Assessment. Based on the findings, there is a need to move forward into the hybrid approach, which will consider both AMT practices and environmental initiatives to ensure that SMEs remain competitive and become the world player in the automotive industry.
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