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Technical Paper

REDUCTION OF STEERING VIBRATION WITH THE APPLICATION OF DYNAMIC TESTING AND ANALYSIS

2019-11-21
2019-28-2421
KEYWORDS: Steering System, Engine Vibrations, Dynamics, Modal Testing, Modal Analysis, ABSTRACT - In modern agriculture, the tractor’s use is indispensable and essential for various operations like cultivation, soil preparation, pulverization and many more. However, despite being efficient machines, tractors may be subjected to different level of vibrations in various parts of their structure. The vibration often plays the key cause of invalidation and component failures and also, affecting the ride and comfort. Since it is known that such vibration factors can affect the behavior in many ways, an understanding of their dynamic response is warranted. In this paper, case study related to reduction of steering system vibration is presented. Objective and Background: Vibration reduction is linked with the reduction either at source or on path. For such, it is necessary to know the reality of machines, component and mechanisms to mitigate the vibration levels on the tractor.
Technical Paper

Antirodent Corrugated tube Development for Fuel tube Rat bite

2019-11-21
2019-28-2536
Rat damages in automobiles/food crops/house hold things are extensive in India. Cases of Rat damages to Car Fuel tubes (plastic) and subsequent fuel leak problems are increasing in India.To protect the Fuel tube from rat bite , a more robust and easy assemble protection method is discussed. Hence Antirodent corrugated tubes are considered to protect fuel tube from rat bite. Antirodent masterbatch (3% ) were added to the corrugated tubes and lab test were done in CAZRI. Antirodent corrugated tubes tested with 2 different species showed better results compared to standard corrugated tubes
Technical Paper

Mechanical Property Evaluation of Paper Honeycomb reinforced Plastics

2019-11-21
2019-28-2538
Mechanical Property Evaluation of Paper Honeycomb Reinforced Plastics Vignesh Balaji S G, Pradeep Hyundai Motor India Engineering Pvt. Ltd, Chennai. India Key Words: Paper Honeycomb, Epoxy Composites, Mechanical Properties, Tensile, Impact & Flexural Test Research and/or Engineering Questions/Objective : Composite Materials are widely being used in many engineering applications because of their desirable properties & Cost, Weight Effectiveness. They are widely being used as their Strength-Weight Ratio is Higher than any Other Material. Paper Honeycomb Material is basically a paper made of honeycomb shapes enforced between layers of Glass Mat. This paper deals with the evaluation of Tensile Strength, Flexural (Three-Point Bending) Strength & Flexural Modulus, Impact Strength of Paper Honeycomb Reinforced Epoxy Composites. The Scope of this Material defines the quality of Paper Honeycomb Reinforced Composites which can be used for Automotive Trim Parts.
Technical Paper

Characterization and Durability of Mold-In-Color Engineering Plastics

2019-11-21
2019-28-2542
Plastics are prone to photo oxidative and thermal oxidative degradation under usage conditions due to their chemical nature. From sustainability and cost standpoint, there is an increasing focus on Mold-In-Color (MIC) plastic materials. Simultaneously customer’s expectations on the perceived quality of these MIC parts has been increasing with attractive color and glossy appearance. A study was conducted to analyze the product quality and durability aspects over a prolonged exposure to accelerated weathering condition. Material selected for this study were injection molded specimens of ABS and PC/ABS used in automotive passenger vehicles.
Technical Paper

Photo oxidation analysis method for automotive coating weathering performance evaluation

2019-11-21
2019-28-2555
RESEARCH OBJECTIVE Accelerated artificial weathering performance has been always observed as critical and most important factor for durability prediction of colour and resin for a coating system. Photo oxidation of resin is the phenomenon behind coating’s ageing. Though accelerated weathering tests protocols are widely used in industry, they are very costly and still very time consuming. One automotive grade accelerated testing can go as long as 8 months duration. METHODOLOGY (maximum 150 words) Photo oxidation value (POV) is proportionate to the degradation of the resin material used in coating. During the accelerated weathering POV is measured for the coating at stipulated interval during initial phase and trend is plotted for deterioration verses weathering test duration. POV can be analysed with the help of FTIR analysis to observe bond absorption energy and bond separation energy in the resin system. This trend can be extrapolated to predict the weathering performance of coating.
Technical Paper

Employing natural plant based fiber in interior automotive parts for cost & weight benefit

2019-11-21
2019-28-2559
The Automotive industry is in ever more need for a lesser weight car due to progressively stringent emission norms and the demand of customer to have better mileage. It can be a gargantuan challenge for automotive manufacturers to search for lesser weight material to meet both customers as well as regulatory norms. But in some cases such lower weight material can increase the cost and adding a expensive material which increases overall cost to a price sensitive market like India is not favorable. One such solution is using the indigenous plant fiber (Jute) in combination with propylene (PP) to make Interior plastics components. Jute a vegetable fiber also referred to as "the golden fiber" has high tensile strength, low extensibility and is well established in fabric, packing, agriculture, construction industries. The biodegradable Jute lesser weight & abundance (India is the leading manufacturer of the Jute) can be utilized in making automobile trim parts in India.
Technical Paper

NEXT GENERATION POWER DISTRIBUTION UNIT IN WIRING HARNESS

2019-11-21
2019-28-2571
Keywords – Miniaturization, Low Profile (LP) Relays, Low Profile (LP) Fuses, Fuse box, Wiring Harness Research and/or Engineering Questions/Objective With the exponential advancement in technological features of automobile’s EE architecture, designing of power distribution unit becomes complex and challenging. Due to the increase in the number of features, the overall weight of power distribution unit increases and thereby affecting the overall system cost and fuel economy. The scope of this document is to scale down the weight and space of the power distribution unit without compromising with the current performance. Methodology Miniaturization involves replacing the mini fuses and J-case fuses with LP mini and LP J-case fuses respectively. The transition doesn’t involve any tooling modification and hence saves the tooling cost.
Technical Paper

Accounting the variabilities into squeak and rattle predictions

2019-11-21
2019-28-2402
Squeak and Rattle (S&R) are the dominant undesired noises which adjudge the perceived quality of a vehicle. It's a foremost problem which needs to be identified and eliminated at a design stage to develop a robust vehicle, which also aids in pacifying the physical testing and warranty claim costs. A Finite Element model of the complex plastic dashboard has been analyzed to identify risks and the root cause of S&R problem under dynamic and static loading conditions, using E-line methodology. These complex transient problems are highly influenced by various parameters like gap variability, temperature, the coefficient of thermal expansion, thickness, and material properties. This paper elaborates the detailed investigation conducted using stochastic simulations to evaluate the individual and combined impact of each parameter on S&R performance
Technical Paper

Vehicle Interior cleanliness tracker

2019-11-21
2019-28-2466
The future of mobility is being driven towards fully autonomous driving. As a result, people spend majority of the time in vehicles for chores other than driving. The focus of automotive makers shifts towards providing best-in-class passenger comfort. One of the least focused area in passenger comfort is vehicle interior cleanliness which requires periodic human intervention. An intelligent vehicle can outsmart a human by self-caring to maintain the cleanliness elements on floor, seat and roof. This paper addresses subjects like wetness, dirt and stains in the vehicle interior utilizing the capability of Interior sensing platform. An internally mounted camera in the vehicle can capture images of the interior and apply image processing techniques to identify the subjects mentioned above. The wetness on the floor mats can lead to moldy odor, corrosion, failure of the electronic components in the car.
Technical Paper

Development of low cost life saving system for Automotive vehicles during Road Accidents.

2019-11-21
2019-28-2460
According to research study 45% of death cause due to not getting help on time to the injured person. Research has proven that if injured person is not found any option of help then they also loose the power to fight such critical situation due to psychological effect. When vehicle met accident, people are not getting on time support, this delay is the major cause of death in developing nations. Presently there is no any robust system available in market for passenger & commercial vehicles which helps to provide on time help to the injured persons & saves human life. In current situation low cost life saving device is need of our society. This paper deals with the design & development of the low cost-life saving device. This paper also comprises the scenario when any vehicle meet an accidents within certain speed limit then how the intelligent life saving device will work & save the life's.
Technical Paper

Development of Systematic Technique for Design of Electric Motor Mounting System in EV/ HEV Application

2019-11-21
2019-28-2508
Last decade has been era of environmental awareness. Various programs have launched for making devices and appliances eco-friendly. This initiative has lead automobile industry toward hybridization and now total electrification of vehicles. Electric motor produce high frequency vibration along with high torque. Hence it needs to be isolated properly & carefully as these vibrations can damage other automobile parts. Dynamic response of electric motor is different from response of IC engines, so use of engine mounting design method is not suitable for designing mounting system for electric motor mounting system. In design of electric motor mounting, position and orientation of elastomeric mounts plays important role. Mounts used in passive vibration isolation are made up of elastomeric material which are stiff and resilient in nature.
Technical Paper

Miniaturized and sleek protective device

2019-11-21
2019-28-2535
A miniaturized and sleek protective device M. Priyanka, Mahindra&Mahindra, India D. Boobala Krishnan*, Mahindra&Mahindra, India T.Vijayan, Mahindra& Mahindra, India Keywords-Fuse, Lightweight. Research and/or Engineering Questions/Objective: Now-a-days there is lot of advancement coming in automobiles. Earlier the electronics were used in engine and engine compartment areas. Now all hydraulics and transmission have been operated by electronics. The role of electronics like sensors, actuators increasing day by day for lifting and moving operations. With increase in electronics circuit, there is complex in wiring harness and packaging space for fuse box is premium Limitations: Limitations of placing other devices. Occupy more space and weight in the vehicle. Packing constraint due to vibration and thermal management issues. Methodology: Two different fuse of same rating can be given in one fuse and we can reduce the wire size.
Technical Paper

Design optimization for Engine mount

2019-11-21
2019-28-2540
The mounting of an engine plays important role in controlling the vibration transmissibility, alignment of transmission unit within specific limit. Design of any mounting system mainly depends on stiffness, allowed deformation and transmissibility of force, natural frequency and size w.r.t space constraints etc. This paper helps to study the behavior of engine mount with different layer of rubber with defer stiffness. Firstly the design of front engine mount with single rubber layer according to space constraint in vehicle and then analysis is done to determine the deformation and various results using CAE technique. As per the results, design is modified with varying layer of rubber pad and again analysis is done with same boundary condition followed by improved results.
Technical Paper

Thermal Challenges in Automotive Exhaust System through Heat Shield Insulation

2019-11-21
2019-28-2539
While advanced automotive system assemblies contribute greater value to automotive safety, reliability, emission/noise performance and comfort, they are also generating higher temperatures that can reduce the functionality and reliability of thesystem over time. Thermal management and insulation are extremely important and highly demanding in BSVI, RDE and Non-IC engine operating vehicles. Passenger vehicle and Commercial vehicle exhaust systems are facing multiple challenges such as packaging constraints, weight reduction andthermalmanagement requirements.Frugal engineering is mandatory to develop heat shield in the exhaust system with minimum heat loss. The focus of the paper is to design, develop and validate heat shield products with different variables such as design gap, insulation material, sheet metal thickness and manufacturing processes. 1D and 3D computational simulations are performed with different gaps from 3 mm to 14 mm are considered.
Technical Paper

Investigation in Bonding Conditions of CF/Epoxy – PP Hybrid Structures Manufactured by Hybrid Single Shot Method

2019-10-22
2019-01-2595
The hybrid single shot method is a novel manufacturing technique which allows to form and bond CF/Epoxy sheet with the injected thermoplastic in a single injection process. This process is promising to overcome the drawbacks of the traditional hybrid structure manufacturing methods by reducing the cycle time, energy consumption, tool, and machinery cost which are the concerns of automakers. In this process, polypropylene (PP) injected over the pre-heated CF/Epoxy prepreg insert. PP is widely used in automotive applications such as bumpers, dashboards, side-sills while CF/Epoxy prepreg has a great potential to enhance the mechanical properties of the hybrid component. Insert material is formed by the pressure of PP and bonded with the thermoplastic part by taking the advantages of polymer heat and the tackiness of prepreg. The final part is promising to combine the inherent properties of these two material while enhancing their weaknesses.
Technical Paper

Sensor Perception and Motion Planning for an Autonomous Material Handling Vehicle.

2019-10-22
2019-01-2611
The ground mobile robotics study is structured on the two pivotal members namely Sensor perception and Motion planning. Sensor perception or Exteroception comprises the ability of measurement of the layout of environment relative to vehicle’s frame of reference which is a necessity for the implementation of safe navigation towards the goal destination in an unstructured environment. Environment scanning has played a significant role in mobile robots application to investigate the unexplored environment in the sector of defence while transporting and handling material in warehouse and hospitals. Motion Planning is a conjunction of analysing the sensor’s information about the local frame and global map while being able to plan the route from starting point to the target destination. In this paper, a 3600 2-D LiDAR is used to capture the spatial information of the surrounding, the scanning results are presented in a local and global map.
Training / Education

Introduction to Rubber Science and Technology

2019-10-15
Rubber – a loosely cross-linked network of polymer chains that when strained to high levels will forcibly return to at or near it original dimensions. This course is designed to provide the participant with a thorough understanding of rubber’s engineering characteristics. This class will introduce the various sources of rubber, both natural and synthetic. The class will contrast the differences between rubber and plastics; including thermoplastic rubber. Detailed discussions on how to select the correct rubber polymer for the application, highlighting the pros and cons of each major rubber type.
Training / Education

Basics of Silicone Rubber Science and Technology

2019-10-14
Silicone rubber is comprised of inorganic-organic polymers. These materials consist of an inorganic backbone with organic side groups attached to silicon atoms. This family of polymers possesses unmatched versatility giving the formulator and user multiple forms and methods to cross link the polymers into rubber materials having the widest service temperature range of any rubber material. This course is designed to provide the participant with a thorough understanding of silicone’s engineering characteristics.
Technical Paper

Design and Analysis of Natural Fibre Reinforced Epoxy Composites for Automobile Hood

2019-10-11
2019-28-0086
The need for eco-friendly materials is recently increasing in the automobile and aerospace sectors. Material selection for automobile components is influenced by various factors such as cost, weight and strength. Natural fibers offers various advantages over conventional materials such as environmental friendly, easily available, recyclable and higher specific strength. Among the natural fibers Sisal and Kenaf fibers are selected for present study due to their good mechanical properties and availability. Kenaf fibers have great potential to be used as construction and automotive materials due to their long fibers which are derived from the bast. Sisal fibers do not absorb moisture and posses good impact, sound absorbing properties and high fire resistance properties. Epoxy LY556 is selected as matrix material to bind the combination of these two natural fibers due to its high temperature resistance and adherence to reinforcements.
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