Application of grey relational analysis for optimizing weld bead geometry parameters of pulsed current micro plasma arc welded inconel 625 sheets

Prasad, Kondapalli Siva; Rao, Ch. Srinivasa; Damera, Nageswara Rao

doi:10.1007/s00170-014-6665-y

Cited by 45 publications

(16 citation statements)

References 5 publications

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“…The GRA, a part of the gray system theory developed by Deng (1989), is a comprehensive method for solving MCDM problems that is most useful when either the data available are meager or the relationship between the attributes is complex (Pervez, Mozumder, & Mourad, 2016). GRA can effectively be recommended as a method for evaluating the complicated interrelationships among multiple performance characteristics (Prasad, Chalamalasetti, & Damera, 2015). Through GRA, a gray relational grade (GRG) is obtained, which is used to integrate multiple performance values into a single value.…”

Section: Gray Relational Analysismentioning

confidence: 99%

Optimization of user experience in interaction design through a Taguchi‐based hybrid approach

Zhu

2018

Hum Ftrs & Erg Mfg Svc

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User experience (UX), which encompasses all aspects of a user’s interaction with an interactive product, has been recognized as central to interaction design. This paper proposes a Taguchi‐based hybrid approach to realize the optimal UX design. In this approach, design analysis is first used to identify design patterns and UX characteristics. According to the results, a Taguchi experiment is conducted and the signal‐to‐noise ratios are computed. Subsequently, the preference weights for the UX characteristics are obtained by using analytical hierarchy process‐based group decision making. A multiperformance characteristic index is then defined based on the gray relational grade (GRG) obtained through gray relational analysis. On the basis of the GRG, the optimal design can be obtained. A mobile health application design was used to demonstrate the proposed approach. The results show that this approach can effectively enhance UX quality and be used as a universal design approach for optimizing UX.

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Section: Gray Relational Analysismentioning

confidence: 99%

Optimization of user experience in interaction design through a Taguchi‐based hybrid approach

Zhu

2018

Hum Ftrs & Erg Mfg Svc

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“…In the normalization process, a criteria drawn from the process performances are selected as in the analysis of the signal to noise ratio. As noted before, maximization of ultimate tensile strength and percentage of elongation is the expected result for a welding process, and so the "larger the better" characteristic was used for normalization of the signal to noise ratios [25][26][27][28].…”

Section: Performing the Normalization Processmentioning

confidence: 99%

“…where x 0 i k ð Þ is the signal to noise ratio, x * i k ð Þ is the sequence after the data pre-processing, maxx 0 i k ð Þ is the highest value in the signal to noise ratios, minx 0 i k ð Þ is the lowest value in the signal to noise ratios, i = 1, 2, …, m; k = 1, 2, …, n; m is the number of experiments, and n is the number of experimental data [25][26][27][28].…”

Section: Performing the Normalization Processmentioning

confidence: 99%

“…Subsequent to the normalization stage, the deviation sequence of each experiment was calculated as follows Equation 5 [25][26][27][28], and the results were reported, Table 6.…”

Section: Calculation Of Deviation Sequences and Grey Relational Coeffmentioning

confidence: 99%

“…This coefficient ranges between 0 and 1, and it emerges as 0.5 in most analyses. Therefore, the 0.5 value was chosen in a similar approach [25][26][27][28].…”

Section: Calculation Of Deviation Sequences and Grey Relational Coeffmentioning

confidence: 99%

See 2 more Smart Citations

Analysis of dissimilar friction stir welding process for tensile properties of EN AW 2024 and EN AW 5083

Kasman

2018

Materialwissenschaft Werkst

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The objective of the present study is to analyze the effect of dissimilar friction stir welding process parameters associated with the tool pin profile. Nine different welding experiments were conducted on EN AW 2024 and EN AW 5083 plates. Each of the welded joints was exposed to metallurgical and mechanical tests to determine the effect of the parameters on the welded joint's strength and characteristics. The welding responses or characteristics were analyzed using the statistical tools, grey relational analysis and analysis of variance. Thus, the contribution of each parameter to the process response (ultimate tensile strength and percentage of elongation) was analyzed, and an optimal welding condition was determined. The results of metallurgical analyses showed that the defective joints were mostly in the welded joints fabricated with a conical threaded pin, and the shape of the stir zone was affected by the pin profile and tool rotational speed. The metallurgical results were consistent with the tensile test results. Statistical analyses showed that the most effective parameter on the welded joint strength and elongation is tool rotational speed with 70.3 %. While the tool pin profile affects the stir zone shape, the strength and elongation are not affected. The effect of welding speed (5.6 %) is not significant on strength and elongation.

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A scheme of comprehensive assessment of weld bead geometry

Sharma

Verma²,

Arora

2015

Int J Adv Manuf Technol

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Application of grey relational analysis for optimizing weld bead geometry parameters of pulsed current micro plasma arc welded inconel 625 sheets

Cited by 45 publications

References 5 publications

Optimization of user experience in interaction design through a Taguchi‐based hybrid approach

Optimization of user experience in interaction design through a Taguchi‐based hybrid approach

Analysis of dissimilar friction stir welding process for tensile properties of EN AW 2024 and EN AW 5083

A scheme of comprehensive assessment of weld bead geometry

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