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Journal of Magnesium and Alloys 2022年第5期10卷 1381-1400页

作者： s.suresh M.Navaneetha Krishnan s.C.Vettivel Department of Mechanical Engineering University College of EngineeringNagercoilTamilnaduIndiaPin:629004 Department of Mechanical Engineering Universal College of Engineering and TechnologyVallioorTamilnaduIndiaPin:627117 Department of Mechanical Engineering Chandigarh College of Engineering and TechnologyChandiagarh 160019India

The emphasis of this exploration was to examine the workability and work hardening performance of Mg(Magnesium)specimen and Mg-B_(4)C composites created via the powder metallurgy *** pure Mg and Mg-B_(4)C composites are made with distinct weight percentages(Mg-5%B_(4)C,Mg-10%B_(4)C,and Mg-15%B_(4)C)at the unit aspect *** powders and composites characterization are executed by sEM(scanning Electron Microscope),EDs(Energy Dispersive spectrum)with an elemental map,and XRD(X-ray Diffraction)*** displays that,the B_(4)C particles were dispersed consistently with the Mg *** workability and work hardening examination was conducted in triaxial stress conditions using the cold deformation *** consequence of workability stress exponent factor(β_(σ)),distinct stress proportion factors(σ_(m)/σ_(eff)and σ_(θ)/σ_(eff)),instantaneous work hardening exponent(n_(1)),work hardening exponent(n),coefficient of strength(k)and instantaneous coefficient of strength(k_(1))are *** outcome displays that Mg-15%B_(4)C specimen has greater workability and work hardening parameter,initial relative density,and triaxial stresses compared with the Mg specimen and Mg-(5–10%)B_(4)C composites.

关键词： Powder metallurgy Cold deformation Workability Instantaneous work hardening exponent Workability stress exponent Triaxial stress

Experimental studies on the erosion rate of different heat treated carbon steel economiser tubes of power boilers by fly ash particles

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International Journal of Minerals,Metallurgy and Materials 2009年第5期16卷 534-539页

作者： T.A.Daniel sagayaraj s.suresh M.Chandrasekar Department of Mechanical Engineering National Institute of Technology Tiruchirappalli-620015Tamil NaduIndia

The experimental investigations on the effect of the fly ash particle size, velocity, impingement angle, and feed rate were done with an emphasis on the effect of erosion on annealed sA 210 GrA1 （A） and normalized sA 210 GrA1 （N） carbon steel economizer-tube materials. Erosion rates were evaluated with different impingement angles ranging from 15° to 90°, at four different velocities of 32.5, 35, 37.5, and 40 m/s, and at four different feed rates of fly ash particles of 2, 4, 6 and 8 g/min. The erodent used was fly ash particles, sizes ranging from 50-250 μm of irregular shapes. Erosion rate is found to be the maximum at the impingement angle of 30°. Erosion rates of the carbon steel tube in different heat treatment conditions, annealed and normalized, at a constant velocity of 32.5 m/s with different angles were studied. In all cases of feed rates, impingement angles, particle sizes, and velocities of fly ash particles, it has been found that the erosion rate of the annealed tube is less than that of the normalized tube. Empirical correlations for erosion rate relating the velocity, size, feed rate, and impingement angle of the particles and elongation property of the target materials were arrived. Morphologies of the eroded surface were examined by scanning electron microscope （sEM）.

关键词： erosion rate economiser tubes annealing normalizing

Failure investigation on high velocity impact deformation of boron carbide(B_(4)C) reinforced fiber metal laminates of titanium/glass fiber reinforced polymer

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Defence Technology（防务技术） 2022年第6期18卷 963-975页

作者： s.suresh Kumar P.A.shankar K.Lalith Kumar Department of Mechanical Engineering Sri Sivasubramaniya Nadar College of EngineeringKalavakkamChennai603110India

High velocity ballistic impact deformation behaviour of Titanium/GFRP Fiber Metal Laminates(FML)has been *** single and multiple projectiles impact conditions were ***/GFRP FML targets were fabricated with addition of 5%and 10%weight percentage of boron carbide(B_(4)C)*** properties of Ti/GFRP FML targets were determined as per AsTM *** velocity ballistic experiments were conducted using Armour Piercing Projectile(APP)of diameter 7.62 mm and velocity ranging between 350 and 450 m/*** of penetration of the projectile into the target was *** deformation behaviour of Ti/GFRP targets with and without the presence of ceramic powder(B_(4)C)was investigated.“Ductile hole growth”failure mode was observed for pure GFRP target when subjected to single projectile impact whereas“plugging”failure mode was noted for Ti/GFRP *** presence of B_(4)C(5%by weight)particles has significantly improved the ballistic resistance of the Ti/GFRP FML target by offering frictional resistance to the projectile *** addition(10%by weight)of B_(4)C has reduced the ballistic performance due to *** of the targets showed‘brittle cracking’or‘fragmentation’*** compared to the published results of Aluminium(Al 1100/GFRP and Al 6061/GFRP)FMLs,Ti/GFRP FML showed lesser DoP which increases its potential application to aerospace industry.

关键词： Ti/GFRP FML Ballistic impact Armour piercing projectile Boron carbide Depth of penetration Plugging

stability analysis of approximately multidimensional additive mappings on fuzzy spaces

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Applied Mathematics(A Journal of Chinese Universities) 2024年第4期39卷 700-720页

作者： B.V.senthil Kumar Hemen Dutta s.suresh Department of Mathematics Saveetha School of EngineeringSaveetha Institute of Medical and Technical SciencesChennai-602105Tamil NaduIndia Department of Mathematics Gauhati UniversityGuwahati-781014AssamIndia Department of Mathematics Jeppiaar Institute of TechnologySunguvarchatram-631604SriperumbudurTamil NaduIndia

The intention of this paper is to study new additive kind multi-dimensional functional equations inspired by several applications of difference equations in biology,control theory,economics,and computer science,as well as notable implementation of fuzzy ideas in certain situations involving ambiguity or *** the context of different fuzzy spaces,we demonstrate their various fundamental stabilities related to Ulam stability *** appropriate example is given to show how stability result fails when the singular case *** findings of this study suggest that stability results are valid in situations with uncertain or imprecise *** stability results obtained under these fuzzy spaces are compared with previous stability results.

关键词： additive mapping additive functional equation Ulam stability generalized Ulam-Hyers stability

Recent advancements in the applicability of snO_(2)-based photo-catalysts for hydrogen production:challenges and solutions

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Waste Disposal and sustainable Energy 2022年第3期4卷 179-192页

作者： Anjali Prasad Jyoti Verma s.suresh s.Arisutha Department of Chemical Engineering Maulana Azad National Institute of TechnologyBhopalMadhya Pradesh462003India ONGC Energy Centre 8th FloorCore-3&4SCOPE MinarLaxmi NagarDelhi110092India Eco-science and Technology BhopalMadhya Pradesh462003India

The challenges in the current energy consumption patterns and demand–supply gap are driving the need to develop commercially viable and sustainable alternative fuels that are eco-friendly and *** the existing alternatives,hydrogen is regarded as the ultimate carbon-less clean and green fuel with high energy *** efforts are being made to develop catalysts/photo-catalysts for the efficient production of hydrogen from abundantly available water resources via water-splitting *** this review,the photocatalytic activity of tin oxide-based hybrid photocatalytic materials for increased hydrogen production has been *** existing bottlenecks and proposed solutions have also been discussed.

关键词： Tin oxide catalyst Hydrogen production Photocatalysis Water splitting

Investigating the surface integrity of aluminium based composites machined by EDM

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Defence Technology（防务技术） 2019年第3期15卷 338-343页

作者： s.suresh Kumar M.Uthayakumar s.Thirumalai Kumaran Temel Varol Aykut Canakci Faculty of Mechanical Engineering Kalasalingam University Krishnankoil 626126 India Materials and Metallurgy Department Karadeniz Technical University Turkey

In the present work, the surface characteristics of Electrical Discharge Machined (EDM) Al (6351)esiC and Al (6351)esiCeB4C composites are investigated. The composites are prepared by employing the conventional stir casting technique, as it can produce better particle dispersion in the matrix. The detailed experimental study is performed on the composites by varying current (I), duty factor (t), pulse on time (Ton), and the gap voltage (V) in order to analyze the Heat Affected Zone (HAZ) formed in the sub surface and the average crater diameter formed on the machined surface of the composites as an output function. The formation of recast layers, presence of bubbles and the surface texture of the composites at various machining conditions are observed. The results show that the increased Metal Removal Rate (MRR) increases the depth of HAZ and the average crater diameter on the machined area. Further, the addition of B4C particles to the composite produces more surface defect than the AlesiC composite.

关键词： Composites EDM surface Crater HAZ

Effect of heat treatment conditions on ballistic behaviour of various zones of friction stir welded magnesium alloy joints

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Transactions of Nonferrous Metals society of China 2021年第1期31卷 156-166页

作者： s.DHARANI KUMAR s.suresh KUMAR Department of Mechanical Engineering Sri Eshwar College of EngineeringCoimbatore641202Tamil NaduIndia Department of Mechanical Engineering Sri Sivasubramaniya Nadar College of EngineeringChennai603110Tamil NaduIndia

Ballistic behaviour of different zones of post-weld heat-treated(PWHT)magnesium alloy(AZ31B)target against 7.62 mm×39 mm armour-piercing(AP)projectile with a striking velocity of(430±20)m/s was *** alloy(AZ31B)welded joints were prepared by using friction stir welding(FsW)process and subjected to different heat treatment *** microhardness values of non-heat-treated and heat-treated FsW joints were *** results indicated that PWHT process(250°C,1 h)has improved the microhardness of heat-treated FsW *** electron microscope(sEM)microstructure showed that heat treatment has caused the formation of fineα-Mg grains and tiny precipitates and made the dissolution ofβ-Mg17Al12 phase into the Mg *** ballistic behaviour of PWHT zones was estimated by measuring the depth of penetration(DOP)of the *** DOP value was observed for the base metal zone(BMZ)of a heat-treated welded *** ballistic sEM examinations on the cross-section of all three zones of crater region showed the formation of adiabatic shear band(AsB).

关键词： AZ31B magnesium alloy post-weld heat treatment ballistic behaviour penetration depth adiabatic shear band

Turbulent Heat Transfer and Pressure Drop in Tube Fitted with square-cut Twisted Tape

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Chinese Journal of Chemical Engineering 2010年第4期18卷 609-617页

作者： P.Murugesan K.Mayilsamy s.suresh Department of Mechanical Engineering K.S.Rangasamy College of TechnologyTiruchengode-637215India Department of Mechanical Engineering Institute of Road and Transport TechnologyErode-638316India Department of Mechanical Engineering National Institute of TechnologyTiruchirappalli-620015India

Heat transfer,friction factor and thermal enhancement factor characteristics of a double pipe heat exchanger fitted with square-cut twisted tapes（sTT） and plain twisted tapes（PTT） are investigated experimentally using the water as working *** tapes（sTT and PTT） have three twist ratios（y=2.0,4.4 and 6.0） and the Reynolds number ranges from 2000 to *** experimental results reveal that heat transfer rate,friction factor and thermal enhancement factor in the tube equipped with sTT are significantly higher than those fitted with PTT. The additional disturbance and secondary flow in the vicinity of the tube wall generated by sTT are higher compared to that induced by the PTT is referred as the reason for better *** the range considered,the Nusselt number,friction factor and thermal enhancement factor in a tube with sTT are respectively,1.03 to 1.14,1.05 to 1.25 and 1.02 to 1.06 times of those in tube with *** empirical correlation is also formulated to match with experimental data of Nusselt number and friction factor for sTT and PTT.

关键词： heat transfer enhancement friction factor plain twisted tape square-cut twisted tape secondary flow

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多目标组合箱梁设计的粒子群优化方法

钢结构(中英文) 2008年第4期 90-91页

作者： s.suresh P.B.sujit A.K.Rao

提出了多级搜索技术设计一个优化的组合箱梁飞行转动叶片,搜索技术称之为粒子群优化(受到鸟群飞行的启发),将连续的几何参数(断面尺寸)和箱梁离散折角作为设计变量,使之达到指定刚度和最大弹性连接的设计目标。目前组合箱梁的最大弹性... 详细信息

提出了多级搜索技术设计一个优化的组合箱梁飞行转动叶片,搜索技术称之为粒子群优化(受到鸟群飞行的启发),将连续的几何参数(断面尺寸)和箱梁离散折角作为设计变量,使之达到指定刚度和最大弹性连接的设计目标。目前组合箱梁的最大弹性连接增加了直升机转动叶片的气体弹性稳定性。多目标设计可明确表达为组合优化问题,采用粒子群优化技术求解,得到组合箱梁设计的最佳几何夹角为10°、15°和45°。对粒子群优化方法的性质和计算效率与各种设计方法进行了比较。模拟结果清楚显示,在性能和计算时间方面,粒子群优化方法比其他方法优越。

关键词：复合片材箱梁设计直升机转动叶片多目标优化粒子群优化和遗传算法

Market Drivers in India’s smart Grid:Responsibilities and Roles of stakeholders

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Energy Engineering 2025年第1期122卷 101-128页

作者： Abhay sanatan satapathy suresh Kumar sahoo Asit Mohanty Yasser Fouad Manzoore ElahiMohammad soudagar Erdem Cuce Faculty of Management studies Sri Sri UniversityCuttack754006India Institute of Power Engineering National Energy UniversityJalan Ikram-UnitenKajangSelangor43000Malaysia Centre of Research Impact and Outcome Chitkara UniversityRajpura140417PunjabIndia Department of Applied Mechanical Engineering College of Applied EngineeringMuzahimiyah BranchKing Saud UniversityRiyadh11421Saudi Arabia College of Engineering Lishui UniversityLishui323000China Department of Mechanical Engineering Graphic Era(Deemed to be University)Dehradun248002UttarakhandIndia Department of Mechanical Engineering Faculty of EngineeringUniversity of MalayaKuala Lumpur50603Malaysia Department of Mechanical Engineering Faculty of Engineering and ArchitectureRecep Tayyip Erdogan UniversityZihni Derin CampusRize53100Turkey Center for Research Impact&Outcome Chitkara UniversityRajpura140401PunjabIndia University Centre for Research and Development Chandigarh UniversityMohali140413PunjabIndia

The emergence of smart grids in India is propelled by an intricate interaction of market dynamics,regulatory structures,and stakeholder *** study analyzes the primary factors that are driving the widespread use of smart grid technologies and outlines the specific roles and obligations of different stakeholders,such as government entities,utility companies,technology suppliers,and *** activities and regulations are crucial in facilitating the implementation of smart grid technology by offering financial incentives,regulatory assistance,and strategic *** firms have the responsibility of implementing and integrating smart grid infrastructure,with an emphasis on improving the dependability of the grid,minimizing losses in transmission and distribution,and integrating renewable energy *** companies offer the essential hardware and software solutions,which stimulate creativity and enhance *** actively engage in the energy ecosystem by participating in demand response,implementing energy saving measures,and adopting distributed energy resources like solar panels and electric *** study examines the difficulties and possibilities in India’s smart grid industry,highlighting the importance of cooperation among stakeholders to build a strong,effective,and environmentally friendly energy future.

关键词： smart grid stakeholders smart grid technology market drivers