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Machining operation optimization improves the quality of the product, reduces cost, enhances overall efficiency by reducing human error, and enables consistent and efficient operation. It is a vital decision-making process and achieves the best solution within constraints. It reduces reliance on machine-tool technicians and handbooks to identify cutting parameters, as a lack of awareness of the optimal combination of machining parameters leads to several machining inefficiencies. Subsequently, the optimization of the machining process is more useful for units of production, particularly machining units. In multi-objective optimization (MOO) problems, weights of importance are assigned, mostly identical. But, nowadays, the weights assignment techniques have received a lot of consideration from the professionals and researchers in MOO problems. Various techniques are developed to assign weights of significance to responses in MOO. The Entropy weights method (EWM) continues to work pleasingly across diverse machining operations to allocate objective weights. In this paper, a literature review is conducted to classify the articles on EWM applications in machining operations. The categorization proposal for the EWM reviews included 65 academic articles from different journals, books, and conferences since the year 2009. The EWM applications were separated into 18 categories of conventional and non-conventional machining operations. The implementation procedure of EWM is presented with an example along with method development. Scholarly articles in the EWM applications are further inferred based on (1) implementation of EWM in different machining operations, (2) MOO methods used with entropy weights in machining operations, (3) application of entropy weights by citation index and publication year, and (4) entropy weights applications in other fields. The review paper provided constructive insight into the EWM applications and ended with suggestions for further research in machining and different areas.
Raman Kumar; Sehijpal Singh; Paramjit Singh Bilga; Jatin; Jasveer Singh; Sunpreet Singh; Maria-Luminiţa Scutaru; Cătălin Iulian Pruncu. Revealing the benefits of entropy weights method for multi-objective optimization in machining operations: A critical review. Journal of Materials Research and Technology 2021, 10, 1471 -1492.
AMA StyleRaman Kumar, Sehijpal Singh, Paramjit Singh Bilga, Jatin, Jasveer Singh, Sunpreet Singh, Maria-Luminiţa Scutaru, Cătălin Iulian Pruncu. Revealing the benefits of entropy weights method for multi-objective optimization in machining operations: A critical review. Journal of Materials Research and Technology. 2021; 10 ():1471-1492.
Chicago/Turabian StyleRaman Kumar; Sehijpal Singh; Paramjit Singh Bilga; Jatin; Jasveer Singh; Sunpreet Singh; Maria-Luminiţa Scutaru; Cătălin Iulian Pruncu. 2021. "Revealing the benefits of entropy weights method for multi-objective optimization in machining operations: A critical review." Journal of Materials Research and Technology 10, no. : 1471-1492.
In this chapter, we propose a method of analyzing the motion equations in the case of a beam in rotation in plane, in order to determine the domain of instability without actually calculating the eigenvalues or to integrate the obtained equations of motion. This can ease the computational effort needed to solve such a problem. Some examples are studied in the paper.
Eliza Chircan; Maria Luminița Scutaru; Ana Toderiţă. Dynamical Response of a Beam in a Centrifugal Field Using the Finite Element Method. Springer Proceedings in Physics 2020, 101 -113.
AMA StyleEliza Chircan, Maria Luminița Scutaru, Ana Toderiţă. Dynamical Response of a Beam in a Centrifugal Field Using the Finite Element Method. Springer Proceedings in Physics. 2020; ():101-113.
Chicago/Turabian StyleEliza Chircan; Maria Luminița Scutaru; Ana Toderiţă. 2020. "Dynamical Response of a Beam in a Centrifugal Field Using the Finite Element Method." Springer Proceedings in Physics , no. : 101-113.
This review provides details of the global scenario on the recent development and application of NiTi smart metal shape memory alloys (SMA). It mainly focuses on the dc/rf magnetron sputtering fabrication technology of nitinol thin film, which is a prominent structural material for many miniaturised systems. The sputtering parameters and their influence on the smart mechanism of the NiTi thin film has highlighted. The application of NiTi SMA at industrial scale from aviation industries to medical industries was discussed. The raised challenges within various applications were addressed, discussed and we have proposed possible way to overcome these limitations.
Ajit Behera; Dipen Kumar Rajak; Reza Kolahchi; Maria-Luminiţa Scutaru; Catalin I. Pruncu. Current global scenario of Sputter deposited NiTi smart systems. Journal of Materials Research and Technology 2020, 9, 14582 -14598.
AMA StyleAjit Behera, Dipen Kumar Rajak, Reza Kolahchi, Maria-Luminiţa Scutaru, Catalin I. Pruncu. Current global scenario of Sputter deposited NiTi smart systems. Journal of Materials Research and Technology. 2020; 9 (6):14582-14598.
Chicago/Turabian StyleAjit Behera; Dipen Kumar Rajak; Reza Kolahchi; Maria-Luminiţa Scutaru; Catalin I. Pruncu. 2020. "Current global scenario of Sputter deposited NiTi smart systems." Journal of Materials Research and Technology 9, no. 6: 14582-14598.
The goal of this paper is to highlight the advantage fulfilled by a novel engine mechanism, the concept of which is based on an oscillating arm relative to the classical engine mechanism. Further, the results of this paper demonstrate the benefits of a novel type of mechanism and the major advantages in terms of functioning parameters of an engine. Their performances highly depend on the joint positions of the oscillating arm. The increases in the functional performances rate of success (i.e., piston stroke, volume of the combustion chamber or compression ratio) enable a superior engine power parameter (higher power, torque) and bring some additional improvement on the eco parameters of the engine related to consumption, emission, etc.
Călin Itu; Maria-Luminiţa Scutaru; Cătălin Iulian Pruncu; Radu Muntean. Kinematic and Dynamic Response of a Novel Engine Mechanism Design Driven by an Oscillation Arm. Applied Sciences 2020, 10, 2733 .
AMA StyleCălin Itu, Maria-Luminiţa Scutaru, Cătălin Iulian Pruncu, Radu Muntean. Kinematic and Dynamic Response of a Novel Engine Mechanism Design Driven by an Oscillation Arm. Applied Sciences. 2020; 10 (8):2733.
Chicago/Turabian StyleCălin Itu; Maria-Luminiţa Scutaru; Cătălin Iulian Pruncu; Radu Muntean. 2020. "Kinematic and Dynamic Response of a Novel Engine Mechanism Design Driven by an Oscillation Arm." Applied Sciences 10, no. 8: 2733.