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Full-Text Articles in Engineering
Simulation Study On Vehicle Dispatching Strategies For Returnable Transport Packaging, Sagar V. Kamarthi, Surendra M. Gupta, Jarupan Lerpong
Simulation Study On Vehicle Dispatching Strategies For Returnable Transport Packaging, Sagar V. Kamarthi, Surendra M. Gupta, Jarupan Lerpong
Sagar Kamarthi
Returnable transport packaging plays an important role in facilitating the transfer of a large volume of products in a close-loop distribution network. To make effective use of returnable transport packaging, vehicle dispatching strategies are crucial. With an appropriate vehicle dispatching strategy, for example, a fast turnover time and a short waiting time for packaging dispatch can be achieved. However, there are some factors that directly influence vehicle dispatching strategies. These factors include the arrival demand fluctuations, the availability of serving vehicles, and the geographic proximity of the facility to the customer's locations. In this study, authors investigate the effect of …
Complications In Disassembly Line Balancing, Askiner Gungor, Surendra M. Gupta, Kishore Pochampally, Sagar V. Kamarthi
Complications In Disassembly Line Balancing, Askiner Gungor, Surendra M. Gupta, Kishore Pochampally, Sagar V. Kamarthi
Sagar Kamarthi
Disassembly line is, perhaps, the most suitable way for the disassembly of large products or small products in large quantities. In this paper, we address the disassembly line balancing problem (DLBP) and the challenges that come with it. The objective of balancing the disassembly line is to utilize the disassembly line in an optimized fashion while meeting the demand for the parts retrieved from the returned products. Although, the traditional line balancing problem for assembly has been studied for a long time, so far, no one has formally talked about the DLBP. In this work, our primary objective is to …
Solving Disassembly Sequence Planning Problems Using Combinatorial Optimization, Surendra M. Gupta, Seamus M. Mcgovern, Sagar V. Kamarthi
Solving Disassembly Sequence Planning Problems Using Combinatorial Optimization, Surendra M. Gupta, Seamus M. Mcgovern, Sagar V. Kamarthi
Sagar Kamarthi
Disassembly activities take place in various recovery operations including remanufacturing, recycling, and disposal. The disassembly line is the best choice for automated disassembly of returned products, a feature that will be become crucial in the future. It is, therefore, important that the disassembly line be designed and balanced so that it works as efficiently as possible. However, finding the optimal balance is computationally intensive with exhaustive search quickly becoming prohibitively large, even for relatively small products. In this paper, we solve the disassemb ly line balancing problem using combinatorial optimization techniques, which are instrumental in obtaining near-optimal solutions to problems …
Modeling Smart Sensor Integrated Manufacturing Systems, Sagar V. Kamarthi, Surendra M. Gupta, Vadde Srikanth
Modeling Smart Sensor Integrated Manufacturing Systems, Sagar V. Kamarthi, Surendra M. Gupta, Vadde Srikanth
Sagar Kamarthi
Smart sensors and their networking technology when applied in manufacturing environment for monitoring, diagnostics, and control and for data/information collection could dwarf all the advances made so far by the manufacturing community through traditional sensors. Smart sensors can significantly contribute to improving automation and reliability through high sensitivity, self-calibration and compensation of non-linearity, low-power operation, digital preprocessed output, self-checking and diagnostic modes, and compatibility with computers and other subsystem blocks. There is a huge gulf between the existing models of manufacturing systems and the computational models that are required to correctly characterize manufacturing systems integrated with smart sensor networks. This …
Evaluation Of Trade-Offs In Costs And Environmental Impacts For Returnable Packaging Implementation, Sagar V. Kamarthi, Surendra M. Gupta, Jarupan Lerpong
Evaluation Of Trade-Offs In Costs And Environmental Impacts For Returnable Packaging Implementation, Sagar V. Kamarthi, Surendra M. Gupta, Jarupan Lerpong
Sagar Kamarthi
The main thrust of returnable packaging these days is to provide logistical services through transportation and distribution of products and be environmentally friendly. Returnable packaging and reverse logistics concepts have converged to mitigate the adverse effect of packaging materials entering the solid waste stream. Returnable packaging must be designed by considering the trade-offs between costs and environmental impact to satisfy manufacturers and environmentalists alike. The cost of returnable packaging entails such items as materials, manufacturing, collection, storage and disposal. Environmental impacts are explicitly linked with solid waste, air pollution, and water pollution. This paper presents a multi-criteria evaluation technique to …
Pricing End-Of-Life Components, Surendra M. Gupta, Srikanth Vadde, Sagar V. Kamarthi
Pricing End-Of-Life Components, Surendra M. Gupta, Srikanth Vadde, Sagar V. Kamarthi
Sagar Kamarthi
The main objective of a product recovery facility (PRF) is to disassemble end-of-life (EOL) products and sell the reclaimed components for reuse and recovered materials in second-hand markets. Variability in the inflow of EOL products and fluctuation in demand for reusable components contribute to the volatility in inventory levels. To stay profitable the PRFs ought to manage their inventory by regulating the price appropriately to minimize holding costs. This work presents two deterministic pricing models for a PRF bounded by environmental regulations. In the first model, the demand is price dependent and in the second, the demand is both price …
Prediction Of Packaging Life-Cycle Design Performance, Surendra M. Gupta, Lerpong Jarupan, Sagar V. Kamarthi
Prediction Of Packaging Life-Cycle Design Performance, Surendra M. Gupta, Lerpong Jarupan, Sagar V. Kamarthi
Sagar Kamarthi
We develop a back-propagation neural network (BPN) to predict the life-cycle design performance for transport packaging. The BPN is constructed and trained on the packaging design attributes to detect hidden relationships among historical or pre-existing life-cycle design data to predict a new concept design through supervised learning, by minimizing the squared difference between the actual and the predicted life-cycle design performance. To this end, the designer could use the predicted life-cycle design in a trade-off analysis and concept selection for a potential packaging design. A case example is used to illustrate the methodology.
Product Take-Back: Sensors-Based Approach, Sagar V. Kamarthi, Surendra M. Gupta, Zeid Ibrahim
Product Take-Back: Sensors-Based Approach, Sagar V. Kamarthi, Surendra M. Gupta, Zeid Ibrahim
Sagar Kamarthi
The driving forces behind product take-back and green manufacturing are well established. The two main product end-of-life options are reuse/remanufacturing and recycling. For either option, all take-back units are treated equally because no information that tracks the conditions of a product during its useful life is available. For example, all expired PCs are treated equally, no distinction can be made about which units still have healthy hard disks. This paper discusses sensor-based monitoring and prognostic methodologies for tracking the condition of products while being used by customers and timely and targeted servicing, smart and selective disassembling and refurbishing of products …
Application Of Combinatorial Approach In Packaging Material Selection, Lerpong Jarupan, Sagar V. Kamarthi, Surendra M. Gupta
Application Of Combinatorial Approach In Packaging Material Selection, Lerpong Jarupan, Sagar V. Kamarthi, Surendra M. Gupta
Sagar Kamarthi
Packaging material selection (PMS) problems have always been important to packaging designers and engineers. Not only does the selection of packaging material determine the costs and the environmental impacts of packaging, but also influences packaging physical characteristics and associated manufacturing methods. In order to reduce economic and environmental impacts, one has to take a holistic approach to packaging material selection by considering material effects throughout the packaging life cycle. To evaluate economic costs and environmental impacts both quantitative factors and subjective criteria play an important role in the packaging design. In the present work, fuzzy set theory is used for …
Pricing Decisions For Product Recovery Facilities In A Multi-Criteria Setting Using Genetic Algorithms, Surendra M. Gupta, Srikanth Vadde, Sagar V. Kamarthi
Pricing Decisions For Product Recovery Facilities In A Multi-Criteria Setting Using Genetic Algorithms, Surendra M. Gupta, Srikanth Vadde, Sagar V. Kamarthi
Sagar Kamarthi
Independent and small scale product recovery facilities (PRFs) often struggle to achieve profits when faced with inconsistent inflows of discarded products, varying demand patterns for recovered components, and stringent environmental regulations. Inconsistent inflows coupled with the varying demand cause undue fluctuations in inventory levels and frequently affect costs involved in product recovery operations. An effective pricing strategy can stabilize the fluctuations in demand and consequently can allow PRFs to control inventory levels. This research determines the prices of reusable and recyclable components and acquisition price of discarded products that allow PRFs to simultaneously maximize their financial returns and minimize the …