Development of a new multi-criteria optimization method for engineering design problems

İç, Yusuf Tansel

doi:10.1007/s00163-016-0225-4

Cited by 9 publications

(2 citation statements)

References 35 publications

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“…The cross-shaped I-steel is the main stress component of the foundation in this paper, and its design quality is directly related to the safety and economy of the tower crane. This section, with the ratio of the web plate area to the total section area of the I-steel as the design variable, intends to combine the optimization design of bridge crane and gantry crane steel [17,21] as well as engineering optimization method [22][23][24][25][26][27][28][29][30] to optimize the moment of inertia (I) and bending modulus (W) of the I-steel under the constraints of total steel plate consumption and…”

Section: Optimization Designmentioning

confidence: 99%

Bolt-connected prefabricated cross-shaped I-steel tower crane foundation

Yang

2023

PLoS ONE

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Traditional tower cranes cannot meet the sustainable development goals as they use the cast-in-place concrete foundation, with large size, long construction period, and demolition after construction, resulting in waste of resources and high costs. This paper proposes a bolt-connected prefabricated cross-shaped I-steel tower crane foundation. It offers significant advantages in terms of convenient connection, low amortization cost and recyclability. The split connection point of the foundation is determined through the force analysis of the I-steel. With the ratio of the fixed cross-sectional area to the web height-to-thickness ratio (i.e. total cost) being constant, the inertia moment and bending stiffness of the I-steel are optimized using modern optimization design methods with the ratio of the web plate area to the total section area of the I-steel as the design variable, yielding the ideal strength and stiffness of the I-steel section.

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Section: Optimization Designmentioning

confidence: 99%

Bolt-connected prefabricated cross-shaped I-steel tower crane foundation

Yang

2023

PLoS ONE

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“…Thus, for each combination of factor levels, five TOPSIS scores are calculated at five replications while taking a different criteria weight set for each replication. For the development of the criteria weight sets, a ten-point scale is considered where 1 = very unimportant, 3 = unimportant, 5 = average, 7 = important, 9 = very important and 10 = extremely important (İç, 2012; Wang et al , 2013; İç, 2016; Chatterjee and Chakraborty, 2017; Wang et al , 2017). A higher weight automatically provides more importance to a specific criterion.…”

Section: Development Of the Meta-modelsmentioning

confidence: 99%

A DoE–TOPSIS method-based meta-model for parametric optimization of non-traditional machining processes

Chakraborty

Chatterjee

Das

2019

JM2

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Purpose To meet the requirements of high-dimensional accuracy and surface finish of various advanced engineering materials for generating intricate part geometries, non-traditional machining (NTM) processes have now become quite popular in manufacturing industries. To explore the fullest machining capability of these NTM processes, it is often required to operate them while setting their different controllable parameters at optimal levels. This paper aims to present a novel approach for selection of the optimal parametric mixes for different NTM processes in order to assist the concerned process engineers. Design/methodology/approach In this paper, design of experiments (DoE) and technique for order preference by similarity to ideal solution (TOPSIS) are combined to develop the corresponding meta-models for identifying the optimal parametric combinations of two NTM processes, i.e. electrical discharge machining (EDM) and wire electrical discharge machining (WEDM) processes with respect to the computed TOPSIS scores. Findings For EDM operation on Inconel 718 alloy, lower settings of open circuit voltage and pulse-on time and higher settings of peak current, duty factor and flushing pressure will simultaneously optimize all the six responses. On the other hand, for the WEDM process, the best machining performance can be expected to occur at a parametric combination of zinc-coated wire, lower settings of pulse-on time, wire feed rate and sensitivity and intermediate setting of pulse-off time. Practical implications As the development of these meta-models is based on the analysis of the experimental data, they are expected to be more practical, being immune to the introduction of additional parameters in the analysis. It is also observed that the derived optimal parametric settings would provide better values of the considered responses as compared to those already determined by past researchers. Originality/value This DoE–TOPSIS method-based approach can be applied to varieties of NTM as well as conventional machining processes to determine the optimal parametric combinations for having their improved machining performance.

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Evaluation of Technical Condition of Sewerage Systems Operated by Municipalities in the Czech Republic

Hluštı́k

Zeleňáková

2019

Springer Water

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Development of a new multi-criteria optimization method for engineering design problems

Cited by 9 publications

References 35 publications

Bolt-connected prefabricated cross-shaped I-steel tower crane foundation

Bolt-connected prefabricated cross-shaped I-steel tower crane foundation

A DoE–TOPSIS method-based meta-model for parametric optimization of non-traditional machining processes

Evaluation of Technical Condition of Sewerage Systems Operated by Municipalities in the Czech Republic

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