iosr-JMCE   Volume-13 ~ Issue-4 ~ July-Aug 2016

Abstract: Suspension system plays an important role in ride comfort and road holding. In this paper, the two degree-of-freedom quarter car model with passive and semi-active suspension system is designed using Matlab/Simulink. The semi-active suspension system is designed with MR damper. The control performance is compared between passive and semi-active suspension system. The results showsthe vehicle response results obtained from step and sine of road input simulations. In conclusion we concluded that semi active system gives 93.9% and 63.7% better result for step and Half sine input respectively.

Keywords: Bingham model, Passive, Quarter car, Semi-active, Simulink,.

[1]. Hassan Ahmed Metered, "Modeling And Control Of Magneto-rheological Dampers For Vehicle Suspension Systems" A thesis
submitted to the University of Manchester for the degree of Doctor of Philosophy in the Faculty of Engineering and Physical
Sciences, 2010.
[2]. Ahmad ZaimSolehin Bin CheHasan, "Modelling And Simulation Of Modified Skyhook Control For Semi-Active Suspension"
Bachelor Of Engineering, University Malaysia Pahang, 2010.
[3]. H. F.Lam, C. Y.Lai, W. H.Liao," Automobile suspension system with MR Fluid Dampers" The Chinese University of Hong Kong.
[4]. Lord Corporation, "Frequently Asked Questions," Lord Corporation, April, 2003. http://www.mrfluid.com/faqs.htm
[5]. R NYerrawar, Dr.R.RArakerimath, SagarRajendraPatil, PrashantSambhajiWalunj,"Performance Comparison of Semi-Active
Suspension and Active Suspension System Using MATLAB/ Simulink"..

Abstract: User satisfaction is the main factor in assessing the quality of service, where the consumers evaluate performance that directly received and perceived towards the product of a service (Cronin, et al,1992). The quality of service is determined by the level of compatibility between the service given and wished by users (TRB, 1999). The higher the quality of service perceived, there will be higher the level of users satisfaction, further the more positive intention behavior in addressing the service. The model which is used in determining the public transportation desired by society is :...........

Keywords: The quality of service, Model, Public massive transportation that is desired by society.

[1]. Ansusanto, Dwijoko. 1999. Modelling the costs Transportation Student Case Study University Of Atma Jaya Yogyakarta. Proceedings Of The Symposium II FSTPT. Surabaya: JTS FTSP Ten November Institute Of Technology Surabaya.
[2]. Kadiyali, L. R. 1978. Traffic Engineering andTransportPlanning, New Delhi: Khanna Publishers. (http://www.youngstatiscian.com, accessed on 28 June 2008)
[3]. a student of STIS. 2006. A descriptive Analysis and analysis Multiple Linear regression (online),
[4]. Murodhi, Hasan. 2003. Modelling of transport costs Student Case Studies ITS Sukolilo Campus. Task The end. Surabaya: JTS FTSP ITS.
[5]. Ortuzar & Willumsen. 1990. Modelling Transport. NewYork: John Wiley and Sons Ltd.

Abstract: The wind tower is an ancient technique used since the time of Feraoun (1300 AC) until today for natural ventilation in the arid Middle East region including Iraq and Iran without any energy consumption ensuring thermal comfort and considerable energy efficiency by comparing it with HVAC systems (Heating, Ventilation and Air-Conditioning) widely used in these areas. Two mechanisms are used in the natural ventilation: buoyancy caused by the temperature difference and the wind pressure forces on the envelope of the ventilated structure...........

Keywords: Natural ventilation, wind tower, fluid-structure interaction, aerodynamic shape, CFD.

[1] B.MOUJALLED. 2007. Dynamic modeling of thermal comfort in naturally ventilated buildings. Doctorat thesis. The Institute of Applied Sciences in Lyon.France.
[2] Agency of Promotion and Rationalization of the Use of Energy APRUE.[Online] http://www.aprue.org.dz/
[3] J. K. Calautit, B. R. Hughes, S.S. Shahzad, 2015; CFD and wind tunnel study of the performance of a uni-directional wind catcher with heat transfer devices, Renewable Energy 83 85-99.
[4] Wang Liping, Wong Nyuk Hien, Applying Natural Ventilation for Thermal Comfort in Residential Buildings in Singapore, Department of Building, National University of Singapore, 4 Architecture Drive, Singapore 117566, Architectural Science Review Volume 50.3, pp 224-233.
[5] David Etheridge, 2011; Natural ventilation of buildings; Natural Ventilation of Buildings: Theory, Measurement and Design. Department of architecture and built environment, University of Nottingham, UK, Edition Wiley.

Abstract: In India, it is mandatory to test a safety belt for its durability according to prescribed standard before it is tested under dynamic conditions. This is done with regard to passenger safety in the event of an accident. The durability of the belt is evaluated for about 45,000 cycles under prescribed load. Present day demand for testing of belts has increased tremendously due to the growth of the Indian automotive sector. To cope-up with this ever-increasing demand, a need has arisen to design a new machine altogether which would be capable of testing seat belts and which would operate on the latest principle of servo-motor technology.. .............

Keywords:Retractor, Durability, Prototype, State Of Art, Machine Design

[1]. Pneumatic System by S.R.Majumdar
[2]. Machine Design Data Book by V.B.Bhandari
[3]. Stepper Motors : Fundamentals, Applications And Design by V.V.Athani
[4]. P.S.G. Design Data book
[5]. Wikipedia

Abstract: The composite materials are replacing the traditional materials, because of its superior properties such as high tensile strength, low thermal expansion, high strength to weight ratio. The developments of new materials are on the anvil and are growing day by day. The recent need to develop a new range of materials has resulted in the development of high performance lightweight composites with excellent properties. Mixing of metals with Glass-Fiber Reinforced Polymers (GFRPs) is finding increased applications. Metal–composite systems consist of alternating layers of metal and fiber-reinforced polymer composites which are bonded by an
adhesive. In this study,.............

Keywords: ........

[1]. Gurustal Somnath Swamy.et al. Bending moment of galvanized iron glass fiber sandwich panel, Int. Journal of Engineering Research and Applications, ISSN: 2248-9622, Vol. 6, Issue 5, (Part - 5) May 2016, pp.47-51.
[2]. K.Alagarraja.et al. Fabrication and testing of fiber reinforced Polymer composites material, IOSR Journal of Mechanical and Civil Engineering (IOSR-JMCE) e- ISSN: 2278-1684, p-ISSN: 2320–334X PP 27 34 www.iosrjournals.org.
[3]. Gurustal Somnath Swamy.et al. Bending Moment of Aluminium Alloy Glass Fiber Sandwich Panel, International Journal of
Innovative Research in Science, Engineering and Technology, ISSN (Online): 2319-8753 ISSN (Print): 2347-6710, (An ISO 3297: 2007 Certified Organization) Vol. 5, Issue 5, May 2016.
[4]. Isaac M. Daniel, Jandro. L, Abot. J. (2000). Fabrication, testing and analysis of composite sandwich beams
[5]. Herranen. H, Pabut. O, Eerme. M, Majak. J, Pohlak. M, Kers. J & Aruniit. A (2012). Design and testing of sandwich structures with different core materials. Materials Science.

Abstract: While attending one of the gruelling nine hour lectures on Project Management, our visibly tired lecturer while initiating the topic of Lean Management caught my attention when he said and I quote "India is not a poor country, it's a poorly managed country". He mentioned that majority of projects in India get delayed by years and having interned at a government company for a big infra project which had already missed multiple deadlines I could definitely relate to it..............

Keywords: ........

[1]. Anwar, B. S. (2013). Agile approach in construction project management. India. . Bhatti group.
[2]. Arbulu, R. &. (n.d.). Lean supply systems in construction industry. Lean supply systems in construction industry. Berkeley , USA.
[3]. Bertelsel, S. (2008). Bridging the gaps towards comprehensive understanding of lean construction. Copenhagen, denmark.
[4]. Chen, Q. R. (2008). Interface Management—A Facilitator Of Lean Construction And Agile Project Management. . P. 16.
[5]. Childerhouse, P. H.-M. (2007). Housing building supply chain.

Abstract: Expansive soil causes problem on civil engineering structures due to its tendency to swell when it is in contact with water and shrinks when they dry out. Stabilization using chemical admixtures is the oldest and popular method of soil improvement. In this study, an investigation was conducted to explore the possibility of using termite dust as stabilizing admixture to improve clay soils. This investigation involves the determination of the swelling potential of clay soil in its natural state as well as when mixed with vary proportion of termite dust from (0 to 30%). The termite dust in this experimental work is obtained from termite mound (anthill), dried and ground followed by sieving through sieve no.36. Consistency limits, specific gravity, swelling properties were determined for the samples...............

Keywords:Soil Stabilization, Swelling potentials, Rate of Swell, Clay Soil, Processed Termite and Scheffe's Model of Scond Degree Polynomials.

[1]. Al-Rawas, A. A., Taha, R, Nelson, J. D. AI-Shap, T. B; and Al-Siyabi. H .. 2002. Comparative Evaluation of Various Additives Used -in. Stabilization of Fx pnnsi , Soils", Geotechnical Testing Journal, Vol. 25, No.2, pp. 199-209.
[2]. Abbadie L. and Lepage M., (1989), The role of subterranean fungus comb chambers (Isoptera, Maaotermitinae) in soil nitrogen cyding in a preforest savanna (COte d1voire), Soil BioI. Biochem, 21 pp 1067-1071, Ivory Coast.
[3]. Abe 5.5., Yamamoto S. and Wakatsuki T. (2009). Physicochemical and morphological properties of termite (Maaotermes bel/ioosus) mounds and surrounding pedons on a toposequence of an inland valley in the southern Guinea savanna zone of Nigeria, Soil Science and Plant Nutrition 55, 514-522.
[4]. Adekayode F. O. and Ogunkoyam O. (2009) Comparative study of clay and organic matter content of termite mounds and the surrounding soi~ Department of Crop, Soil and Pest Management, Federal University of Technology, Akure, Nigeria. African Crop Science Conference Proceedings, Vol. 9. pp. 365 - 369
[5]. African Crop Science Conference Proceedings, Vol. 9. pp. 379 - 384 ISSN 1023-070X/2009

Abstract: Humidity is an indoor environmental factor that can affect thermal comfort inside a building. Sustainable construction techniques to create and maintain healthy indoor condition, based on ecological principles and through an efficient use of resources are the requirement nowadays. Common cause of moisture during the hot season is excessive indoor humidity, caused by an improper balance between moisture generation and moisture removal.............

Keywords: Thermal comfort, relative humidity, CFD analysis, mud block, rat trap bond, sustainable building materials

[1]. Gholamreza Heravi, Mahsa Qaemi, Energy performance of buildings: The evaluation of design and construction measures concerning building energy efficiency in Iran, Energy and Buildings 75 (2014)456-464
[2]. Wang Liping, Wong Nyuk Hien, The impacts of ventilation strategies and façade on indoor thermal environment for naturally ventilated residential buildings in Singapore, Building and Environment 42 (2007) 4006 – 4015
[3]. Oluwafemi K. Akandel and Micheal A. Adebamowo, Indoor thermal comfort for residential buildings in hot-dry climate of Nigeria, Proceedings of conference: Adapting to change: New thinking on comfort, 9-11 April 2010. Network for comfort and energy use in buildings, http://nceub.org.uk
[4]. Harimi Djamila, Chi-Ming Chu, Sivakumar Kumaresan, Effect of Humidity on tropical comfort in the humid tropics, Journal of building construction and planning research, 2014, 2, 109-117
[5]. ASHRAE Position document on Limiting indoor mold and dampness in buildings, 2012 ASHRAE

Abstract: A rocket nozzle is a mechanical device which is designed to control the rate of flow, speed, direction and pressure of stream that exhaust through it.There are various types of rocket nozzles which are used depending upon the mission of the rocket. This paper contains analysis over a convergent divergent rocket nozzle which is performed by varying the number of divisions in mesh. Also the various contours of nozzle like Cell Equiangle skew, Cell Reynolds number, Pressure,Velocity, Mach Number,and above are calculated at each type of mesh using CFD analysis software ANSYS Fluent..............

Keywords: ANSYS Fluent, Convergent, Cell Reynolds Number, Mesh, Molecular Prandtl Number.

[1]. P. Parthiban, M. Robert Sagayadoss, T. Ambikapathi, Design And Analysis Of Rocket Engine Nozzle by using CFD and Optimization of Nozzle parameters, International Journal of Engineering Research, Vol.3., Issue.5., 2015 (Sept.-Oct.).

[2]. Bogdan-Alexandru Belega, Trung Duc Nguyen, Analysis of Flow in Convergent-divergent rocket engine nozzle using Computational Fluid Dynamics, International Conference Of Scientific Paper Afases 2015 Brasov, 28-30 May 2015.

[3]. Balaji Krushna.P, P. SrinivasaRao, B. Balakrishna , Analysis Of Dual Bell Rocket Nozzle Using Computational Fluid Dynamics, IJRET: International Journal of Research in Engineering and Technology eISSN: 2319-1163 | pISSN: 2321-7308.

[4]. Dumonov, G., Ponomaryov, N.B. and Voinov, A.L.,(1997)``Dual-Bell Nozzles for Rocket Engines of Launch Vehicle Upper Stages and Orbital Transfer Vehicles,’’ AIAA Paper 97-3089, 33rd AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, USA, Luglio.

[5]. Abdulnaser Sayma ,Computational Fluid Dynamics

Abstract: Cement concrete is the most extensively used construction material. Maintenance and repair of concrete structures is a growing problem involving significant expenditure. As a result carried out worldwide, it has been made possible to process the material to satisfy more stringent performance requirements, especially long–term durability. HPC is the latest development in concrete. It has become very popular and is being used in many prestigious projects such as Nuclear power projects, flyovers multi-storeyed buildings..............

Keywords: .Metakaolin, Concrete mix, Compressive strength, Split Tensile strength, Flexural strength.

[1]. Sabir B.B, Wild S, Bai J, "Metakaolin and calcined clay as pozzolans for concrete :a review" Cement and concrete composite 23 ,(2001),pp.441-454.
[2]. Jian-Tong Ding and Zongjin Li "Effects of Metakaolin and Silica Fume on Properties of Concrete" ACI Materials Journal/July-August 2002,pp.393-398.
[3]. Badogiannis E, Papadakis V.G., Chaniotakis E, Tsivilis S, "Exploitation of poor Greek kaolins: Strength development of metakaolin concrete and evaluation by means of k-value" Cement and Concrete Research 34 (2004),pp.1035–1041.
[4]. Justice J.M, Kennison L.H, Mohr B.J., Beckwith S.L, McCormick L.E, Wiggins B., Zhang Z.Z, and Kurtis K.E, "Comparison of Two Metakaolins and a Silica Fume Used as Supplementary Cementitious Materials" SP- 228(Volume1&2) Seventh International Symposium on Utilization of High-Strength/HighPerformance Concrete, June(2005),SP228.
[5]. Naik T.R.Singh, S.S and hossian,M.M (1995),"Properties of high performance concrete systems in corporating large amounts of high lime fly ash; Construction And Building Materials. Vol.9.No 4.Pp.195-204.

Abstract: In this research, the philosophy of manufacturing the geogrids in their conventional shape is modified to let the friction between the ribs and soil particles have a noteworthy effect on the final resistance of soil reinforced by geogrids. Inspired by the belts used to link gears, both surfaces of the conventionalBiaxial Geogridwere reformed by adding cubic cogs distributed in a sine wave order on both sides of the ribs. The proposed geogrid shall be denominated "ICB-GGR"as an abbreviation for Isometric Cogged Biaxial Geogrid. In order to study the improvement in the soil-cogged geogridinteraction, prototypes of theconventional Biaxial geogrid and the modified ICB.........

Keywords: Biaxial Geogrid, Cogged Geogrid,ICB-GGR, laboratory tests,Sand, Pull-out test, Pull-out resistance, Loading frame, prototypes.

[1] S.K. Shukla, and J.-H. Yin, Fundamentals-of-Geosynthetic-Engineering, (Taylor & Francis Group, London, UK, 2006).
[2] J.P. Giroud, Geogrid Jubilee Symposium in London, 2009.
[3] M.I.M. Pinto, Discussion of Applications of geosynthetics for soil reinforcement, Ground Improvement, 7(2), 2003, 61–72.
[4] A-A.A. Senoon, and O.A. Farghal, Influence of the confinement, soil density, and anchorage length of reinforcement on soil
geogrid interaction, Proc. 1st ICCES1 Conf. of Civil Engineering Science, Assiut University, Assiut, Egypt, 2003, 232-241.
[5] A. Duszynska, A. F. Bolt, Pullout tests of geogrids embedded in non-cohesive soil, Archives of Hydro-Engineering and
Environmental Mechanics,51(2), 2004, 135–147.

Abstract: Lean philosophy has an important role to play in today's competitive globalised market which is mainly governed by fickle requirement of market, rapid change and advancement in technology, quality, profit, cost reduction and higher expectations of customer. As world has witnessed that implementation of lean concepts in industries has resulted into enhanced productivity, better quality, higher profit, better customer satisfaction, sense of achievement in employees, better employee and employer relation, sense of belonging towards their work.............

Keywords: ........

[1]. Taiichi Ohno (1988) The Toyoto Production System : Beyond large scale production
[2]. Womack, James P., and Daniel T.Jones (1990), The Machine That Changed The World.
[3]. Womack, James P., and Daniel T.Jones (2003), Lean Thinking.
[4]. William G Sullivan et.al. (2002) Equipment replacement decisions problems within the context of lean manufacturing implementation
[5]. Yen Chun Jim Wu (2003) Lean manufacturing: A perspective of lean suppliers.