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multi-response optimization of Ti-6A1-4V turning operations using Taguchi-based grey relational analysis coupled with kernel principal component analysis

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Advances in Manufacturing 2019年第2期7卷 142-154页

作者： Ning Li Yong-Jie Chen Dong-Dong Kong School of Mechanical Science and Engineering Huazhong University of Science and Technology Wuhan 430074 People's Republic of China

Ti-6A1-4V has a wide range of applications, especially in the aerospace field;however, it is a difficultto- cut material. In order to achieve sustainable machining of Ti?6A1-4V, multiple objectives considering not only economic and technical requirements but also the environmental requirement need to be optimized simultaneously. In this work, the optimization design of process parameters such as type of inserts, feed rate, and depth of cut for Ti-6A1-4V turning under dry condition was investigated experimentally. The major performance indexes chosen to evaluate this sustainable process were radial thrust, cutting power, and coefficient of friction at the toolchip interface. Considering the nonlinearity between the various objectives, grey relational analysis (GRA) was first performed to transform these indexes into the corresponding grey relational coefficients, and then kernel principal component analysis (KPCA) was applied to extract the kernel principal components and determine the corresponding weights which showed their relative importance. Eventually, kernel grey relational grade (KGRG) was proposed as the optimization criterion to identify the optimal combination of process parameters. The results of the range analysis show that the depth of cut has the most significant effect, followed by the feed rate and type of inserts. Confirmation tests clearly show that the modified method combining GRA with KPCA outperforms the traditional GRA method with equal weights and the hybrid method based on GRA and PCA.

关键词： Ti-6A1-4V Taguchi method Grey relational analysis (GRA) Kernel principal component analysis (KPCA) multi-response optimization

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Efficient multi-response adaptive sampling algorithm for construction of variable-fidelity aerodynamic tables

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Chinese Journal of Aeronautics 2019年第3期32卷 547-558页

作者： Maxim TYAN Jae-Woo LEE Department of Aerospace Information Engineering Konkuk University

Adaptive sampling is an iterative process for the construction of a global approximation model. Most of engineering analysis tools computes multiple parameters in a single run. This research proposes a novel multi-response adaptive sampling algorithm for simultaneous construction of multiple surrogate models in a time-efficient and accurate manner. The new algorithm uses the Jackknife cross-validation variance and a minimum distance metric to construct a sampling criterion function. A weighted sum of the function is used to consider the characteristics of multiple surrogate models. The proposed algorithm demonstrates good performance on total 22 numerical problems in comparison with three existing adaptive sampling algorithms. The numerical problems include several two-dimensional and six-dimensional functions which are combined into singleresponse and multi-response systems. Application of the proposed algorithm for construction of aerodynamic tables for 2 D airfoil is demonstrated. Scaling-based variable-fidelity modeling is implemented to enhance the accuracy of surrogate modeling. The algorithm succeeds in constructing a system of three highly nonlinear aerodynamic response surfaces within a reasonable amount of time while preserving high accuracy of approximation.

关键词： Adaptive sampling Aerodynamic database multi-response system Surrogate modeling Variable fidelity modeling

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Simultaneous Optimization of Incomplete multi-response Experiments

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Open Journal of Statistics 2015年第5期5卷 430-444页

作者： Pradip Kumar Nandi Rajender Parsad Vinod Kumar Gupta ICAR-IASRI Library Avenue Pusa New Delhi India

This article attempts to develop a simultaneous optimization procedure of several response variables from incomplete multi-response experiments. In incomplete multi-response experiments all the responses (p) are not recorded from all the experimental units (n). Two situations of multi-response experiments considered are (i) on units all the responses are recorded while on units a subset of responses is recorded and (ii) on units all the responses (p) are recorded, on units a subset of responses is recorded and on units the remaining subset of responses is recorded. The procedure of estimation of parameters from linear multi-response models for incomplete multi-response experiments has been developed for both the situations. It has been shown that the parameter estimates are consistent and asymptotically unbiased. Using these parameter estimates, simultaneous optimization of incomplete multi-response experiments is attempted following the generalized distance criterion [1]. For the implementation of these procedures, SAS codes have been developed for both complete (k ≤ 5, p = 5) and incomplete (k ≤ 5, p1 = 2, 3 and p2 = 2, 3, where k is the number of factors) multi-response experiments. The procedure developed is illustrated with the help of a real data set.

关键词： Incomplete multi-response Experiments Simultaneous Optimization response Surface Designs Ridge Analysis

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Combination of Dynamic Imine Bond Sites and Luminescent Samarium Ion Indicator Enables High-efficient multi-response for Several Analytes

Combination of Dynamic Imine Bond Sites and Luminescent Sama...

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中国稀土学会2020学术年会暨江西(赣州)稀土资源绿色开发与高效利用大会

作者： Ting-Ting CHEN Yan HUANG Kun ZHANG Department of Chemistry Zhejiang Sci-Tech University

The development of efficient sensing materials and convenient detection techniques is of great significance for selective detection and precise determination of critical analytes by the fluorescent method in human health and environmental sciences, especially the multi-response. In recent years, by the pre-organization-assisted template synthesis, we have designed and synthesized serial luminescent Schiff-base macrocyclic Sm(III) complexes bearing dynamic imine bonds as recognition sites and a Sm(III) emitter as the signal indicator, which could provide the selective turn-off fluorescence sensing for several analytes(Li+, Zn2+, F-, PO43-, N2 H4, etc.) over their corresponding analogues based on the stimuli-induced structure transformation. Most of these sensing systems show satisfactory detection performances in terms of the fast response, wide linear range and low detection limit which can be comparable to reported examples. Furthermore, these probes are also used to quantitatively determine targeted species through the probe-impregnated test paper strips and RGB value outputs, and our proposed smartphone-based analytical method still gives satisfactory detection results. It is believed that these works can shed some lights on development of lanthanide-based optical probes.

关键词： Lanthanide complex Fluorescent probe Imine bond Sm(III) emitter multi-response

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ROBUST DESIGN OF multi-response PROBLEMS-A REVIEW

ROBUST DESIGN OF MULTI-RESPONSE PROBLEMS-A REVIEW

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2006年中国机械工程学会年会暨中国工程院机械与运载工程学部首届年会

作者： WANG Ying, HE Zhen School of Management, Tianjin University, Tianjin 300072, China

The problems in today’s quality engineering focus on robust design of multi-response. Much researching work done by overseas researchers has presented many methodologies, for example, the strategies t

关键词： multi-response Robust Design Taguchi Method Optimization.

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A NEW DESIRABILITY FUNCTION BASED METHOD FOR multi-response ROBUST PARAMETER DESIGN

A NEW DESIRABILITY FUNCTION BASED METHOD FOR MULTI-RESPONSE ...

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2006年中国机械工程学会年会暨中国工程院机械与运载工程学部首届年会

作者： ZONG Zhiyu, HE Zhen, KONG Xiangfen Industrial Engineering Department, Tianjin University, Tianjin 300072,China

Parameter design is an effective way to improve product or process quality, and desirability function method is the most popular approach for multi-response parameter design optimization, however, the

关键词： Desirability function multi-response robustness design parameter noise factor.

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Application of grey relational analysis based on Taguchi method for optimizing machining parameters in hard turning of high chrome cast iron

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Advances in Manufacturing 2018年第4期6卷 419-429页

作者： Ali Kalyon Mustafa Giinay Dursun Ozyiirek Department of Manufacturing Engineering Karabiik University Karabiik 078050 Turkey Department of Mechanical Engineering. Karabiik University Karabuk 078050 Turkey

High chrome white cast iron is particularly preferred in the production of machine parts requiring high wear resistance. Although the amount of chrome in these materials provides high wear and corrosion resistances, it makes their machinability difficult. This study presents an application of the grey relational analysis based on the Taguchi method in order to optimize chrome ratio, cutting speed, feed rate, and cutting depth for the resultant cutting force (Fr) and surface roughness (Ra) when hard turning high chrome cast iron with a cubic boron nitride (CBN) insert. The effect levels of machining parameters on Fr and Ra were examined by an analysis of variance (ANOVA). A grey relational grade (GRG) was calculated to simultaneously minimize Fr and Ra. The ANOVA results based on GRG indicated that the feed rate, followed by the cutting depth, was the main parameter and contributed to respo ses. Optimal levels of parameters were found when the chrome ratio, cutting speed, feed rate, and cutting depth were 12%, 100m/min, 0.05mm/r, and 0.1mm, respectively, based on the multiresponse optimization results obtained by considering the maximum signal to noise (SIN) ratio of GRG. Confirmation results were verified by calculating the confidence level within the interval width.

关键词： High chrome cast iron Hard turning Grey relational analysis multi-response optimization Taguchi method

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Effects of Whole-Tree Harvesting on Species Composition of Tree and Understory Communities in a Northern Hardwood Forest

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Open Journal of Forestry 2015年第2期5卷 235-253页

作者： Gabriel E. Roxby Theodore E. Howard Thomas D. Lee Society for the Protection of New Hampshire Forests Concord NH USA Formerly Graduate Research Assistant University of New Hampshire Durham NH USA Department of Natural Resources and the Environment University of New Hampshire James Hall Durham NH USA

In the northeastern United States, whole-tree harvesting is widely used to supply fuel to biomass energy facilities, but questions remain regarding its long-term sustainability. We have previously reported findings indicating no short-term decrease in forest productivity in whole-tree harvested sites when compared with similar conventionally (stem-only) harvested sites. Here we present additional results of the same study, but focus on the effect harvest treatment has on the species composition of the regenerating forest. Within northern hardwood forests in central New Hampshire and western Maine, regeneration surveys were conducted on four (4) small clearcuts in 2010 and twenty-nine (29) small clearcuts in 2011. The species and diameter of trees > 2 m in height were recorded within 1 m or 2 m-radius plots and used to calculate the biomass fraction of each species. The 2010 study additionally measured the density of trees 2 m in height and the diversity of understory non-tree species. Non-metric multidimensional scaling and multi-response permutation procedures were used to determine the effect of harvest treatment had on community-wide tree species composition. Potential differences were also examined on a species-by-species basis. Both analytic methods indicated no significant differences in species composition of tree species or understory communities. Within the limits of our data, we conclude that no significant effects of residue removal on species composition are observed within our sample of northern hardwood sites at this early stage of stand development.

关键词： Whole-Tree Harvesting Regeneration Species Composition Residue Removal Northern Hardwood Forest Non-Metric multidimensional Scaling multi-response Permutation Procedures

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