Criteria

Text:
Display:

Results

Viewing 1 to 30 of 5037
2015-06-26 ...
  • June 26, 2015 (12:30 p.m. - 4:30 p.m.) - Grand Rapids, Michigan
Training / Education Classroom Seminars
Most muffler design in the automotive industry is accomplished by using "cut-and-try" methods that rely on what has worked in the past and/or extensive full-scale testing on engines for validation. New computer software aimed at muffler design can shorten the design cycle and yield more effective results. This four hour seminar provides an introduction to the behavior of mufflers and silencers including a description of the two-port approach to muffler design. This seminar covers the acoustic simulation of muffler and silencer systems and the use of experimental methods to measure muffler performance.
2015-04-21
Event
Developments of experimental and theoretical schemes in various engineering disciplines are accompanied with growing complexity. This complexity can be attributed to extensive acquisition of measured data as well as higher order levels of computational analysis. One significant feature of this complexity is the presence of uncertainty, which is inherent in both experimental and analytical engineering schemes. This session is intended to bring a collection of papers on current methods and new directions in treating the presence of uncertainty in: 1) data acquisition and analysis and 2) in the mechanical systems. Papers are specifically sought in new analytical and data quality assurance methods for treating uncertainty.
2015-04-21
Event
Researchers and engineers involved in development in simulation and digital modeling of manufacturing process. Studies in wear patterns, failure modes, extending life in modern tools, optimal layout of tools are also welcome.
2015-04-21
Event
Papers cover exhaust aftertreatment system models, as well as their validation and application. Technologies encompassed include DOC, HC Trap, DPF, GPF, LNT, TWC, SCR, SCRF, ammonia oxidation catalysts, hybrid or combined catalysts, urea-water solution spray dynamics, and mixture non-uniformity. Modeling aspects range from fundamental, 3D models of individual components to system level simulation, optimization, variation, degradation, and control.
2015-04-21
Event
This session covers transmission and driveline modeling, including topics related to transmission hardware, software, and system integration.
2015-04-21
Event
Separate sub-sessions cover zero-dimensional, one-dimensional, and quasi-dimensional models for simulation of SI and CI engines with respect to: engine breathing, boosting, and acoustics; SI combustion and emissions; CI combustion and emissions; fundamentals of engine thermodynamics; numerical modeling of gas dynamics; thermal management; mechanical and lubrication systems; system level models for controls; system level models for vehicle fuel economy and emissions predictions.
2015-04-21
Event
The spectrum of papers solicited for this session reflect the truly multi-disciplinary nature of the field of Multi-Dimensional Engine Modeling. The session covers advances in the development and application of models and tools involved in multi-dimensional engine modeling. This includes advances in chemical kinetics, combustion and spray modeling, turbulence, heat transfer, mesh generation, and approaches targeting improved computational efficiency. Papers employing multi-dimensional modeling to gain a deeper understanding of processes related to turbulent transport, transient phenomena, and chemically reacting, two-phase flows are also encouraged.
2015-04-21
Event
Meeting Reliability, Design, quality and safety requirements for electrical/electronic systems becomes more challenging every year as E/E content, complexity, time-to-market and globalization pressures increase. This session focuses on intelligent practices for achieving high reliability. New approaches and techniques for integrating robust design and robustness validation into the mainstream global automotive electronics product development and manufacturing processes are discussed
2015-01-14
Technical Paper
2015-26-0185
Kartik Panchal
The front and rear wings are essential in race cars in order to increase the down-force and enhance the stability of vehicle at high speed. The present work focuses on the computational modelling of NACA 4412 airfoil for front and rear wing of the racing vehicle and assesses its performance characteristics. The effect on wing characteristics in vicinity of ground and tire for varying angle of attack in moving ground frame has been studied. The computation has been carried out using high fidelity computational fluid dynamics model to solve the incompressible Navier-Stokes equations. The front wing has been split into two parts main wing and flap with chord length of 0.3 meters and 0.15 meters respectively. Similarly, the rear wing was modelled with the chord length 0.3meter and aspect ratio of 1.5. The pressure and velocity flow distribution over the body of the vehicle has been studied for varying angle of attack.
2015-01-14
Technical Paper
2015-26-0219
Sahil Kakria, IVN SriHarsha, Milind Wagh
Suspension and chassis play a vital role in the structural performance of an off-road vehicle. The paper focuses on Computer Aided Engineering (CAE) modeling and simulation study of an All Terrain Vehicle (ATV) structure to analyze its static and dynamic behavior. An integrated MBD-FEA approach used for analysis purpose has been presented. In the study, a Multi Body Dynamic (MBD) model of the ATV suspension system is built using ADAMS/Car. The effect of change in suspension hardpoints on suspension characteristics has been analyzed by carrying out Design of Experiment (DOE) study using ADAMS/Insight. This is done to minimize roll, camber and kingpin angle variation during vertical wheel travel, thus increasing stability of the vehicle under rough road conditions. This helps in optimizing the front and rear suspension geometry of ATV. The Finite Element (FE) model of ATV chassis is prepared to check its structural integrity.
2015-01-14
Technical Paper
2015-26-0234
Ramesh Pathuri, Yuvraj Patil, Prasanna Vyankatesh Nagarhalli
During early phases of vehicle program, evaluation of Air Conditioning (AC) system for its performance (time to comfort) and power consumption has become vital and hence simulation tools have gained tremendous importance. A 1D simulation model can be introduced early in the design process to evaluate several AC system configurations and parametric studies at different test conditions and which results in reduced experimental work. This paper presents a method for AC cool down simulation of passenger car with multi air zone cabin model in KULI. This approach allows the prediction of zone wise (head, body and foot) temperature and humidity distribution in the cabin for parameter studies for transient analysis. The same cabin model can deal with multiple inlets into the cabin, solar radiation, and recirculation for pre-defined cabin types.
2015-01-14
Technical Paper
2015-26-0207
Kamran Hashmi, D Radhakrishna
Abstract This paper deals with the application of 1-D simulation technique for prediction of engine performance at high altitudes. 1-Dimensional (1-D) engine simulation is an important tool for engine development activities. Engine design through simulation can substantially cut down time needed to execute experiments and prototyping, as todays softwares can simulate most of the experiments.This approach was applied for simulation of a spark-ignited engine for Unmanned Aerial Vehicle (UAV).A detailed 1-D thermodynamic model was prepared for the engine configuration in Ricardo WAVE environment; different simulation runs were executed and then performance parameters like brake power, torque, specific fuel consumption, BMEP, in-cylinder pressure etc were predicted. A predicted performance shall always be co-related with test results for correct interpretation.
2015-01-14
Technical Paper
2015-26-0059
Rahul R Kartha, Mohammad Jamadar, Kishor Kumar Kavathekar, S D Rairikar, S. S Ramdasi, S.S Thipse, N. V Marathe
The paper deals with the simulation of a Light Commercial Vehicle (LCV) using vehicle performance algorithms. This method speeds up the product development process. Also by using these kind of methodology in vehicle simulation there is much noticeable reduction in cost of testing. The simulation model is used for parametric studies of the vehicle and also to attain objectives such as to optimize transmission ratio, full load acceleration, maximum tractive force, gradient performance, fuel consumption and the exhaust emission . In this case study, simulation model of a CNG LCV is used to analyse the performances similar to that done in a chassis dynamometer. The simulation leads to the prediction and evaluation of various parameters such as fuel consumption, exhaust emissions, full load acceleration, gradient performance & maximum tractive effort for Indian Driving Cycle.
2015-01-14
Technical Paper
2015-26-0204
Satyajeet Kulkarni, Abhijit Kumbhar, Jagannath M Paranjpe, Nagesh Voderahobli Karanth
To achieve first time right in any new part development process requires number of trials,skilled manpower, huge cost and massive time. In case of forging process,to develop new component lot of physical trialsrequired to be conducted due to process variations.Need of hour is shorter development time with highest quality.All these requirements can be achieved with the help of reliable computer simulation. With computer simulation, process can be optimized, crack analysis can be carried out, Additionally use of computer simulation in forging process reduces no. of trials, ultimately saves time, energy and product cost. The paper deals with forging process optimization by effective use of computer simulation. Existing forging process and modified forging process wassimulated. Forging process was able to simulate crack generation due to improper metal flow as observed in existing forging simulation process, and good co-relation was established.
2015-01-14
Technical Paper
2015-26-0022
Rakesh Mulik, Sushil S Ramdasi
Abstract In the pursuit of design and development of efficient, reliable and durable system and components for modern engines, there is a need to understand complications involved in building mathematical models for simulation. Valve train and timing drive systems are having higher rankings for addressing these attributes. Hence, a new comprehensive multi body dynamics model is built and equations are solved by state-variable approach. Model developed is validated and in order to probe into details of Hydraulic Lash Adjuster (HLA) behavior and coupled analysis of timing chain drive systems for valve train system, simulation is carried out to freeze design options. Engine timing drives used in engines are one of the most critical systems. Timing chains are preferred widely in modern high speed engines as compared to timing belts and gear drives. In spite of advantages of chain drive systems, their complex dynamic behavior is not well researched.
2015-01-14
Technical Paper
2015-26-0226
Bhaskarjyoti Saikia, Piyush Ranjan, Remesan Chirakkal, Vasundhara V Arde
The application of virtual simulation of Engine components has become an integral part of design and development process. Virtual simulation offers opportunities to reduce number of physical testsduring design verification and validation and thereby helps in achieving considerable reduction in development time and cost. This paper explains a case study that was essential for assessment of strength & fatigue analysis of diesel engine connecting rod as part of an engine development program for power upgrade through Turbo charging. The methodology adopted simulates major loading conditions for Compressive& Tensile stress &fatigue life of connecting rod. Finite element analysis was done to calculate static displacement, strain and stresses under maximum compressive and tensile loading which were then used for critical point evaluation.
2015-01-14
Technical Paper
2015-26-0036
Marina Roche, Marco Mammetti
Accurate measurements in proving ground for fuel consumption reduction study in heavy duty vehicles Marina Roche, Marco Mammetti Applus IDIADA group ABSTRACT Heavy duty trucks running costs are strongly influenced by high fuel consumption. Even a small reduction has a big effect on fleet cost savings and pollutant contamination. From the different possible sub-systems to improve, reducing the rolling resistance of the tires is a cost-effective option due to its relatively high influence on the fuel consumption preventing to lose other performances. Even if the other causes of resistance forces like mechanical friction and aerodynamics must be optimized as well. The focus of the work is to propose an accurate methodology for the proper evaluation of resistance forces to allow fuel consumption simulations for heavy trucks. For this purpose, the results obtained in proving ground applying different resistance forces measurement methodologies were analyzed.
2015-01-14
Technical Paper
2015-26-0194
Tharunnarayanan Arthanari, V Sundaram, S Sathish Kumar
An expansion tank is an integral part of an automotive engine cooling system. The primary function of an expansion tank is to allow for the thermal expansion of the coolant .The expansion tank will be referred as hot bottle in this paper. Optimization solutions are required during the early product development phase where the bench test data is not available for deciding the flow through the Hot bottle .In the System level modelling of the engine internal flow it is imperative to accurately model and characterize the components in the system. It is often challenging to define the hot bottle accurately with limited parameters in the 1D modelling. If the Hot bottle component is not defined properly in the system network, then the system flow balancing cannot be predicted accurately.
2015-01-14
Technical Paper
2015-26-0154
Anand Ramalingam, Saravanakumar Thangamani
In the highly competitive automotive industry, safety and robustness become indispensable. Vibration requirements and crash-worthiness of automotive components have become stringent over the years. Therefore designers are facing huge challenges for fulfilling both criteria as these requirements become contradictory in some applications. The Fuel Delivery Module (FDM) comprising flange and swirl pot assembly, is mounted on fuel tank. It pumps fuel from tank to the engine. Flange mounted on fuel tank opening, provides proper sealing. Swirl pot assembly comprises of fuel pump, pump holder and fuel level sensor. It is positioned inside the tank by two axially spring loaded struts connected to the flange. During crash, FDM undergoes sudden deceleration. Due to inertia, swirl pot assembly creates bending moment in the flange-strut interface. At such adverse condition, flange should not exhibit crack on the sealing side, as it might expose fuel in the fuel tank to the atmosphere.
2015-01-14
Technical Paper
2015-26-0196
Soujanya C, V Sundaram, Sathish Kumar S
Cooling system is one of the important systems of an Engine to maintain the optimum temperatures across engine and its components. Analysis of cooling system at initial phase of product development will help in optimum design of the system. Simulation plays a vital role in optimum design. In the System level simulation it is important to accurately model and discretize the components in the system in order to achieve optimum system level flow balancing and flow prediction. As engine coolant jacket is the major contributor of pressure drop in cooling system, its modelling strategy will have high influence on results predictions across the system. Simulation of engine cooling system with Split engine coolant water jacket is challenging. It is difficult to achieve the simulation results close to bench test due to complexity of the system.
2015-01-14
Technical Paper
2015-26-0216
Ramesh Babu Pathuri, Prasanna Nagarhalli
Abstract Upfront in a vehicle program, sizing of front end cooling module i.e. Condenser Radiator Fan Module (CRFM) and front grille opening is vital hence simulation tools like 1D have gained tremendous importance. This paper focuses on the modeling and analyzing performance behavior of engine cooling system using 1D simulation tool and also discusses the correlation of simulated results with test results. 1D model of engine cooling system is developed by inputting all necessary geometrical and performance data of all components (radiator heat load, coolant pipe geometry, CRFM, pump, thermostat etc.) with necessary assumptions. Air flow rates used on heat exchangers are predicted in 3D Computation Fluid Dynamics (CFD) analysis. First isothermal coolant circuit is modeled and coolant flow correlation is achieved to build confidence in modeling.
Viewing 1 to 30 of 5037

Filter

  • Range:
    to:
  • Year: