Refine Your Search

Search Results

Technical Paper

Bike with Modified Steering System to Assist People with Forearm Disability

2018-07-09
2018-28-0062
Abstract Individuals with mobility impairments are people who have lost their functionality of leg and hand due to birth, diseases or accidents. Various commercial bike designs are existing in the market for bike riders with disability in their legs designed with dummy rear axle. But no designs exits for bike riders with disability in their hands which is being available in market. To ride a bike steering, brake and acceleration controls has to be provided by an alternate method. It was proposed to develop a bike for person with disability in their hand. The design of the bike and in particular steering system was done using of Autodesk Inventor software and analysed using ANSYS workbench to assess the structural integrity of the design. The design was transformed in to a complete working prototype and found to be working satisfactory.
Technical Paper

Development of 2.2 L CRDe Engine Meeting BS4 Emission Norms without the Aid of EGR Cooling

2018-07-09
2018-28-0069
Abstract The never-ending concern on the air quality and atmospheric pollution has paved way for more stringent emission legislations. Existing Diesel engine hardware face several problems on meeting the tough emission limits and they require more additional features to comply with the emission standards. The current research work throws light on the air path control approach to meet the Bharat stage 4 emission norms on 2.2 L Sports Utility Vehicle engine operating with EGR cooler and the techniques followed to meet the same emission norms without the application of EGR cooler which was successfully implemented on the vehicles enabling reduction of hardware. Also the migration of 2.2 L engine from 88 kW operating on Compression ratio 18.5 to 103 kW at a lower Compression ratio of 16.5 is a challenging process to achieve Nitrogen oxide emissions reduction at part loads.
Technical Paper

Fatigue Failure Analysis of Diesel Engine Connecting Rod

2018-07-09
2018-28-0067
Abstract Connecting rod of a high performance reciprocating internal combustion engine is one of the critical components exhibiting complex motion. This is subjected to both compressive load due to combustion force as well as tensile load due to inertia of the moving components. These loadings are cyclic in nature and the component is highly prone to fatigue failure if not deigned or manufactured carefully. Therefore connecting rods are designed and manufactured with high degree of precision for infinite loading cycle. But failures in connecting rod is often reported which is associated to either fatigue, bending, bearing failure or assembly faults. This study deals with one of such failure of connecting rod reported during fatigue testing. Failures occurred at around 1 million fatigue loading cycle as against target life of 5 million cycles. The present study represents the investigations done for engine connecting rod and with a view to identify the root cause of failure.
Technical Paper

Modeling and Simulation for Hybrid Electric Vehicle with Parallel Hybrid Braking System for HEV

2018-07-09
2018-28-0097
Abstract A model for Hybrid electric vehicle power train with parallel hybrid braking system has been constructed. The hybrid vehicle utilized is based on integrated motor assist power train developed by Honda co utilized in Honda Insight car. The model is implemented using empirical formulation and power control schemes. A power control strategy based on throttle position (% throttle) and brake pedal position (% braking) is used. It incorporates the parallel hybrid braking system for the hybrid electric vehicle. The model allows for real time evaluation of wide range of parameters in vehicle operation as HEV without parallel hybrid braking system (PHBS) and with PHBS. Due to regenerative braking the structure design and control of braking system for HEV is different from conventional vehicle. The PHBS is the good option to provide safety of the vehicle and simultaneously recover reasonable amount of braking energy.
Technical Paper

Development and Characterization of Al-GNPs Composites by Stir Casting Method

2018-07-09
2018-28-0096
Abstract The present investigation deals with microstructural and mechanical properties of Pure Aluminum Graphene Nano platelets (GNP’s) composites. The contents of GNP’s varied from 2.5 to 4.5 wt. % in pure aluminium matrix. The composites fabrication was done through stir casting technique, and the investigations revealed that Pure Al -3.0% GNP’s composite displayed better mechanical properties in comparison to other composites for tensile strength, hardness and impact strength and Pure Al- 4.5% GNP’s showed better elastic property compare to all other composites. SEM and TEM analysis were done to examine the surface morphology, whereas the fractography of the tested composites and the XRD analysis was performed to inspect the phase analysis. By the above characterization it confirms a uniform distribution of GNPs in the pure aluminium matrix.
Technical Paper

Optimization of Process Parameters for Electro Discharge Machining of Al 7075-Al2O3 Nano Composite Using Different Electrode Materials

2018-07-09
2018-28-0093
Abstract In the present study, an aluminium based nanocomposite, reinforced with 2 wt. % aluminium oxide (Al2O3) is developed through stir casting method. These hard ceramic particles also influence the material removal rate (MRR), electrode wear rate (EWR) and surface finish (Ra) in an electro-discharge machining (EDM) process. In this work, EDM of Al 7075/2 wt. % Al2O3 nanocomposite is carried out using copper and brass electrodes using Taguchi L18 array. The percentage contribution of each process parameter on the response variables was determined using analysis of variance (ANOVA). Multi-response signal to noise ratio (MRSN) and the optimum combination levels for the input parameters was obtained using Taguchi’s parametric design. MRR and surface roughness are substantially improved when machining is performed at optimized conditions.
Technical Paper

Experimental Study and CFD Analysis of an Aerofoil Structure for Automotive Body Design

2018-07-09
2018-28-0091
Abstract A study of an aerofoil structure used for automotive body design is being conducted and an experiment has been performed to determine the lift and drag forces produced by it by varying its Angle of Attack. The NACA0018 and NACA0015 aerofoil with a chord length of 16 cm were used for this study. Then an analysis was done with the help of (CFD) computational fluid dynamics. The results obtained by CFD analysis where compared by the experimental results which was performed on wind tunnel using NACA0018 aerofoil. The results are then presented graphically, showing pressure and velocity distributions lift and drag coefficients for the different cases which will be useful for design of automotive body structures.
Technical Paper

Investigations on the Tensile Properties of Ultrasonic Plastic Welded Components for Automotive Application

2018-07-09
2018-28-0092
Abstract The use of thermoplastics in various fields like aerospace, automotive, medical and packaging industries is growing day by day, due to their light weight and compactness. In some instances, the plastic components are required to be welded. In this research study, process parameters used for the ultrasonic welding of thermoplastics which produces highest weld strength for complex use in the above said applications is carried out. Also, the possibilities of welding dissimilar plastics are also tested. Tensile testing of above welded samples fabricated through injection moulding was carried out for all possible welds and the ultimate tensile strength was calculated in each case. Of all the welded specimens, at given parameters like weld time, weld pressure and energy director, it is observed that ultimate tensile strength of ABS (8.89 N/mm2) is highest.
Technical Paper

An Optimization Study for Occupant Comfort during a Three Wheeled Indian Auto-Rickshaw Ride for Low Frequency Vibrations

2018-07-09
2018-28-0089
Abstract A three-wheeled auto-rickshaw (auto) remains one of the widely used modes of transport in parts of India. The vehicle structure places restriction in speed and it remains one of the ‘safe’ and cheap modes of urban commute medium in India. As part of data collection process, vibrations experienced in an auto-rickshaw ride were measured using 3 axis accelerometer fitted to the auto floor. A set of three maneuvers were planned in 4 different scenarios, namely, a stationary or idle mode, constant speed cruising(operating in speeds of 30,40 and 50 km/hour), a typical acceleration from idle to 30 km/hour and a typical braking or deceleration from 30 to 0 km/hour. The signals recorded were of the stationary random nature. The presence of 0.5 Hz dominant frequency in vertical and lateral vibrations denotes a higher tendency for motion sickness if travelled for a long period of time in auto.
Technical Paper

Study of Elastic Axis Decoupling in Engine and Gearbox Mounting on the Vehicle Chassis

2018-07-09
2018-28-0090
Abstract The elastic axis decoupling to offset the elastic center of the automotive engine mounting system towards the center of gravity of the power-train is studied. General procedure of diagonalization of stiffness matrix which is a factor of the principle stiffness, coupled stiffness, position and inclination of engine mounts is analysed. Maintaining symmetry of the mounting system to ensure functional characteristics the elastic axis decoupling can be achieved by simplification to few factors of relative stiffness ratios, relative position ratios and multiplication factors. The effect of CG shift from the plane of symmetry on the coupling of the modes of vibration can be seen. The inevitability of perfect elastic axis decoupling can be assessed to achieve the optimal partial elastic axis decoupling required to the designers need.
Technical Paper

Enhancement of Starter Brush Life for Micro Hybrid (Start/Stop) Applications

2018-07-09
2018-28-0102
Abstract In Micro hybrid, start-stop system automatically stop and start the engine to reduce the idling time of engine spend in traffic jams and signals, thereby reducing fuel consumption and emissions. Starter motors used in Micro hybrid (Start/Stop) application has 5~10 times more life cycles than compare to conventional starter because of need to starter in every idling time of engine. There are multiple components in starter motor have sliding contact (mechanical/electrical), rolling contact will inflict the life cycles of starter motor. Brush is one of the major sliding contact elements to inflict the life cycle of starter, brushes are commonly used to conduct current between the stationary and moving part of starter. Brushes are exposed both mechanical and electrical loading conditions. Brush wear is affected by the association of Mechanical wear and electrical wear.
Technical Paper

Corrosion Study of NIP and NIP Composite Plated Piston Ring

2018-07-09
2018-28-0103
Abstract Piston rings are used to seal the cavity formed between the piston and cylinder in order to allow the engine to operate efficiently. The Piston rings wear out due to constant rubbing action with cylinder wall and also have to withstand very high temperature. The top compression ring is the closest to combustion gases and is exposed to the greatest amount of chemical corrosion and highest operating temperature. This has lead to development of new coatings to piston ring with good wear and corrosion resistance. One such coating is Nickel Phosphorus (Ni-P) and Nickel Phosphorus composite coating (Ni-P SiC) used in automotive industry. Reinforcement of ceramic particle not only enhances the tribological property but also the corrosion resistance behavior. The electroplated Ni-P & Ni-P metal matrix with ultra-fine SiC particles of 0.6 microns to a coating thickness of 30 microns minimum.
Technical Paper

Informatics Based Design of Bio-Lubricant with Nano Friction Modifiers and Evaluation of Its Tribological Properties

2018-07-09
2018-28-0100
Abstract Statistical and computational intelligence techniques were employed for informatics based design of nano friction modifiers added bio-lubricant. Systematic data were generated through laboratory experiments, using design of experiment, to study the effect of addition of multi-wall carbon nanotubes as friction modifiers in castor oil on frictional properties. The experimental data were used to develop data driven models using statistical techniques, artificial neural network and fuzzy inference systems. The simulation studies which were based on the model predictions were used to design the nano-lubricant with multi-walled carbon nanotubes as the friction modifiers. The optimum combination of nanotube concentration and load, found from the model predictions, were experimentally validated.
Technical Paper

Fabrication and Mechanical Properties of Alumina Nanoparticle Reinforced Magnesium Metal Matrix Composite by Stir Casting Method

2018-07-09
2018-28-0098
Abstract In the present experimental investigation magnesium based alloy was prepared by mixing magnesium powder and aluminium powder in the ratio 65:35. The prepared magnesium alloy is used as the matrix material. Metal matrix composites were prepared by stir casting route. The composite was prepared by reinforcing 50 nm alumina nanoparticle so that the final composite contains 5, 10 and 15 wt.% alumina. Mechanical properties such as tensile strength, yield strength, impact strength and hardness were evaluated. Significant improvement was observed in impact strength and hardness value. The result showed that magnesium alloy with 5 wt.% alumina nanoparticle has a maximum impact strength of 25.2 J and hardness value 63.86 Hv respectively. Tensile strength and yield strength shows marginal increase in value.
Technical Paper

Theoretical Analysis of High Thermal Conductivity Polymer Composite Fin Based Automotive Radiator under Forced Convection

2018-07-09
2018-28-0099
Abstract Though high thermal conductivity polymer composites are prepared based on the thermal requirements, the effectiveness and overall heat transfer performance of the radiators have to be addressed comprehensively to validate the concerned efforts taken to prepare the high thermal conductivity polymer composites. In this article, theoretical analysis on the thermal performance of the cross flow type heat exchanger under convection is performed only by concentrating on the term thermal conductivity of the material. Micro channel based geometry is extracted from the given heat exchanger problem to reduce the complexities of simulation. The term cooling system performance index (CSPI) is used to achieve the expected targets in the present investigation. For shorter fins, the effect of thermal conductivity on the cooling system performance index under lower Reynolds number is insignificant.
Technical Paper

Experimental Study of Friction Reduction by Reducing Piston Ring Pre-Load

2018-07-09
2018-28-0101
Abstract The prime objective of this study is to check the friction reduction by reducing the tangential load of the piston ring. To examine this experimental study has been carried out under motored engine condition from 500 to 4000 engine speed at the step of 500 rpm at different oil temperatures ranging from 40 °C to 120 °C. 15 W40 oil was used for this study. Standard Strip down approach was followed in accessing the Friction. The whole friction measurement was split in crank train and piston group friction and was measured with base and modified piston ring pack. The modified piston ring pack was having 24% less ring tension as compared to base ring pack. The study was carried out using block, crankshaft & Piston of 100 hp, 1.5 litre, 3 cylinder engine with 92 mm stroke and 83 mm bore. In each test ring pack was tested as a part of complete piston assembly.
Technical Paper

Experimental Investigation of Addition of Treated Waste Engine Oil into Diesel Ethanol Blends on the Performance in Compression Ignition Engine

2018-07-09
2018-28-0001
Abstract Diesel ethanol blends can be used as a fuel for CI engine to replace or reduce the usage of diesel as a fuel for compression ignition engine. This work is to investigate the addition of treated waste engine oil into diesel ethanol blends. The novelty in this work is the utilization of renewable fuel ethanol and treated waste engine oil which is a waste product from internal combustion engines. Experimentation was conducted in two stages: viz., first stage was treating the waste engine oil and followed by blending and testing the performance of diesel ethanol blends with various proportions of treated waste engine oil. Treatment of waste engine oil includes initial filtration, acid treatment by acetic acid, clay contraction by fullers` earth and neutralization cum decoloration along with final filtration of waste engine oil.
Technical Paper

Sustainability and Production Economics of Titanium for Engine Valve: India Perspective

2018-07-09
2018-28-0002
Abstract Automotive industry is looking to have breakthrough for utilization of titanium in vehicles with cost effective solution. This is due to the relative cost factor and for titanium it is 20 and 2.9 times greater than steel and aluminium respectively. Looking at Today’s scenario of multi material vehicle, it weighs approximately 221 kg on usage of conventional materials i.e. aluminium 37%, steel 42% and composites 21%. also Indian government has taken bold decision to meet BS VI norms directly by 2020 and to achieve the same it is required to meet NOx level of 0.06 g/km for gasoline vehicles and 0.080 g/km for diesel vehicle along with EGR rates of 35% at full load at which conventional materials like steel, aluminium has to withstand for high temperature cycles and high compressed air pressure at outlet.
Technical Paper

Utilization of Diesel-Ethanol Blends in a CI Engine as a Fuel with Nano Alumina as Combustion Enhancer

2018-07-09
2018-28-0010
Abstract Alcohols are the renewable liquid fuels. These can be blended with diesel fuel for fuelling compression ignition (CI) engine. This experimental investigation includes in finding a blend containing maximum volume of ethanol, which was taken as base blend that can be blended with into diesel and can be utilized as fuel in CI engine. Also, this study includes the influence of addition of nano alumina as combustion enhancer into base blend-diesel. The experimentation was carried out in four stages, viz. (i) Solubility test of diesel ethanol in various proportions in a range of temperature 5°C to 25°C and above; (ii) Testing of properties that are essential for fuelling CI engine; (iii) Modifying the injection timing to suit the maximum possible blend and (iv) Testing the influence of nano alumina into diesel ethanol blends.
Technical Paper

Design of a Ballistic Composite Cover Plate for Armoured Fighting Vehicles

2018-07-09
2018-28-0008
Abstract Armoured fighting vehicles such as Main Battle Tank (MBT) operate in a variety of theatres right starting from desert, marshes to high altitude areas. To deploy and operate such platforms, strategic, tactical and battlefield mobility have to be higher, for which combat mass of the platform is a critical parameter. To keep this parameter within optimum limits, overall mass reduction of the platform is crucial, which is also challenging as the structure has to offer not only strength and rigidity but also ballistic protection. This challenge is further complicated if the panel or component is exposed to high temperature. This paper tries to address these design challenges through a case study, wherein a composite cover plate made of Ceramic tiles, Kevlar, Foam with stainless steel sheets as backings in a sandwich construction is presented. The complete design and iteration methodology is first explained in detail along with constraints.
X