Ämneskategori: Farkostteknik

Hittade 444 dokument - visar 20 per sida

Föregående12345678910Nästa

1. Modello per la stima di coppia nei motori diesel
   Falcone, Paolo
   Examensarbete på avancerad nivå, 2003 (Civilingenjör)
2. 1D Modeling and Simulations of Soot Oxidation in Diesel Particulate Filters and Monoliths using GT-POWER
   Lerdmaleewong, Chanin; Luong, Staffan
   Examensarbete på avancerad nivå, 2016 (MSc - Innovative and Sustainable Chemical Engineering)
   Diesel particulate filter (DPF) is part of the exhaust aftertreatment system for diesel engines.The DPF’s main function is to trap particulate matter (soot) from the exhaust stream.The trapped soot is removed by regeneration of the filter. The regeneration process involvessoot oxidation via oxygen and nitrogen dioxide. Simulations on kinetics and pressuredro...
   Läs fulltext
3. A CFD Investigation of Sailing Yacht Transom Sterns
   Allroth, Jens; Wu, Ting-Hua
   Examensarbete på avancerad nivå, 2014 (MSc - Naval Architecture and Ocean Engineering)
   The objective of this thesis was to investigate whether the hydrodynamic performance of the wide, box-shaped transoms that have become very popular on modern performance cruisers is better than the performance of the more conventional, less wide, rounder transoms.The investigation of the hydrodynamic performance was evaluated with the aid of computational fl...
   Läs fulltext
4. A CFD Investigation of SailingYacht Forebodies in Head Seas
   Kostalas, Konstantinos; Pluto, Adam
   Examensarbete på avancerad nivå, 2015 (MSc - Naval Architecture and Ocean Engineering)
   The objective of this thesis is to investigate the hydrodynamic performance of a modern 41 feet sailing yacht by comparing the performance values acquired from simulations for different forebody geometry designs on the yacht. The particulars such as length, beam, displacement and prismatic coefficient are kept as similar as possible for all hulls. The resist...
   Läs fulltext
5. A Feasibility Study on LPG as Marine Fuel
   Kjartansson, Sveinbjörn
   Examensarbete på avancerad nivå, 2012 (Masterarbete)
   With the upcoming stricter emission rules fast approaching and the requirements for higher quality fuel, it is inevitable that there will be a change of fuel from HFO to cleaner options. These changes are driven by the knowledge of the health problems associated with emissions from ships in coastal areas. One viable option for meeting these demands for reduc...
   Läs fulltext
6. A Methodology for Identification of Magic Formula Tire Model Parameters from In-Vehicle Measurements
   Jonson, Axel; Olsson, Eric
   Examensarbete på avancerad nivå, 2016 (MSc - Automotive engineering)
   Accurate tire modeling is of key importance to the development of modern vehicles. TraditionalFlat-Trac testing of tires is expensive and time consuming. In order to increasethe efficiency of the vehicle development process, a new method for identifying MagicFormula tire model parameters has been investigated. By driving specific maneuverswith a vehicle inst...
   Läs fulltext
7. A Refined Vehicle Dynamic Model for Driving Simulators
   Obialero, Emanuele
   Examensarbete på avancerad nivå, 2013 (Masterarbete)
   Driving simulators play an important role in the automotive field, especially in the research about human factors and in the development of driving assistance systems. For this reason, driving experience should be as close as possible to reality. The mathematical model, describing vehicle dynamics, plays a fundamental part in providing this “reality feel”, s...
   Läs fulltext
8. A STUDY OF TRUCK DRIVER DECELERATION INITIATION BEHAVIOR
   Cheng, Qing
   Examensarbete på avancerad nivå, 2013 (Masterarbete)
   This project aimed to study truck drivers’ behavior at deceleration initiation based ondata collected in the euroFOT project. It was executed in two steps: statistical descriptionof each driver’s typical deceleration behavior under normal conditions and thentesting of quantitative models predicting time of deceleration initiation.The obtained results show th...
   Läs fulltext
9. A Study of Knee Injury Mechanisms in Car-to-Pedestrian Impacts Using
   Yao, Jianfeng
   Examensarbete på avancerad nivå, 2004 (Civilingenjör)
   The aim of the master thesis was to study the knee injury mechanisms in animpact condition associated with car-to-pedestrian accidents, analyse theinfluences of the physical parameters on the lower extremity impactresponses, and predict the injury risks under different impact conditions.The study also contributed to the evaluation of the validity of the EEVC...
10. A Validation, Comparison and Automation of Different Computational Tools for Propeller Open Water Predictions
    Klasson, Olof Klerebrant
    Examensarbete på avancerad nivå, 2011 (Masterarbete)
    Open water behaviour of a propeller is an important indication of the propeller performance.This Master’s Thesis report describes the procedure for computing open water characteristicsusing four different methods, how to measure velocity fields and how to predict cavitation fora propeller in uniform inflow. The four methods were Computational Fluid Dynamics...
    Läs fulltext
11. A Vehicle Dynamics Model for Driving Simulators
    Gómez Fernández, Jorge
    Examensarbete på avancerad nivå, 2012 (Masterarbete)
    Driving simulators play an important role in research concerning mainly human factors and the development of new advanced driver assistance systems. Since the human body is a very sensitive “machine”, driving simulator experiences must be as close as possible to reality, in order to conduct simulator experiments that generate accurate results, so they can be...
    Läs fulltext
12. A computational model of a ground vehicle with engine mounted on rigid chassis
    Göbel, Felix
    Examensarbete på avancerad nivå, 2009 (Masterarbete)
    Läs fulltext
13. A joint model of heavy truck, tyres, and operating environment for tyres selection
    Kolár, Petr
    Examensarbete på avancerad nivå, 2015 (Masterarbete)
    Improving fuel efficiency is one of the core targets when minimizing the transport cost of a vehicle combination.Hence, it is crucial to optimize the design and selection of all vehicle components, including tyres. Volvo GroupTrucks Technology (GTT) and Chalmers University of Technology run a common research project TyreOpt—Fuelconsumption reduction by tyre...
    Läs fulltext
14. A modular Torque Vectoring System for a 4WD Electric Performance Vehicle
    Schaaf, Aldo
    Examensarbete på avancerad nivå, 2018 (MSc - Automotive engineering)
    This master’s thesis proposes a modular torque vectoring system for an electric performancevehicle with four independent motor-generator units (MGU). The implemented system is subdividedinto three subsystems, consisting of a vehicle motion reference formulation, a chassisforce control algorithm and a control allocation algorithm, where the former two belong...
15. A natural language processing approach for identifying driving styles in curves
    McNabb, Eric; Kalander, Marcus
    Examensarbete på avancerad nivå, 2016 (MSc - Computer Science)
    A machine able to autonomously recognise driving styles has numerous applications, of which the moststraightforward is to recognise risky behaviour. Such knowledge can be used to teach new drivers with thegoal of reducing accidents in the future and increasing traffic safety for all road users. Furthermore, insurancecompanies can incentivise safe driving wit...
    Läs fulltext
16. A teaching incentive
    Lindmark, Olle
    Examensarbete på avancerad nivå, 2012 (Masterarbete)
    The change in maritime legislative demands, both national and international, has had a significant impact on the training and education within the maritime domain. The STCW Convention is the statutory text that regulates the training, certification and watchkeeping for seafarers. During the last few years, the STCW Convention has been revised to include upda...
    Läs fulltext
17. A truck dynamics model for driving simulators
    Sedran, Stefano
    Examensarbete på avancerad nivå, 2016 (Masterarbete)
    Driving simulators provide important opportunities to study interaction between the drivers and vehicle in a wide variety of situations and scenarios. A vehicle dynamics model in the simulator calculates the motion of the simulated vehicle based on the inputs of the driver, in real time. The Swedish National Road and Transport Research Institute (VTI) has a...
    Läs fulltext
18. AUTONOMOUS ROBOT NAVIGATION USING THE UTILITY FUNCTION METHOD AND MICROSOFT KINECT
    Eriksson, Tobias; Ragnerius, Erik
    Examensarbete på avancerad nivå, 2012 (Masterarbete)
    In this thesis, a system for autonomous navigation using the Microsoft Kinect sensorand the utility function (UF) method for decision-making, has been developed. Inthe UF method an artificial brain decides what control system procedures to activate ordeactivate, based on their utility. The system uses the Kinect sensor for obstacle avoidanceand localization....
    Läs fulltext
19. Accelerated road load simulation - Road load data for fatigue analysis in concept phase
    Liu, Jianqiao; Ramnath, Vijay
    Examensarbete på avancerad nivå, 2016 (MSc - Automotive engineering)
    Läs fulltext
20. Active Rear Wheel Steer Systems Analysis - An Actuator Requirements Approach
    Håbring, Fredrik
    Examensarbete på avancerad nivå, 2006 (Civilingenjör)
    The purpose of this Master’s Thesis project is to analyze active rear wheel steer (RWS) systems from a vehicle handling and stability point of view, with focus onsmall rear wheel angles. The main objectives are to develop an active RWS system and specify requirements for the RWS actuators, such as maximum rear wheel angle,maximum actuator speed and maximum w...

Föregående12345678910Nästa