Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 87 for “"Vehicle design"”.
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Modular Vehicle Design Concept
Outlined herein is the Modular Vehicle [MODV] concept as a cost effective, utilitarian, and highly functional vehicle concept for the changing demands placed on a MAGTF [Marine Air-Ground Task Force] or SP-MAGTF [Special Purpose Marine Air-Ground Task Force] in the 21st century. A large focus is …
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Research on the Unmanned Aerial Vehicle Design
The thesis is concerned with the design and testing of a mini tail sitter VTOL UAV. The design consists of a Duct System with a single Propeller Engine coupled with Four Internal Aerofoil Rotor Flap (Designed for counter Gyro-scopic Effect) and four Rudder-vators Flight Controls (Design for Pitch …
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Electric vehicle design, racing and distance to empty algorithms
This research began with the goal of designing and building an electric motorcycle to compete in the Isle of Man TT Zero race. A set of parametric physics-based models was derived to size the batteries and motors, predict vehicle speeds and predict the time required to finish the race. In June 2011 …
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Hardware & software architecture for multi-level unmanned autonomous vehicle design
The theory, simulation, design, and construction of a radically new type of unmanned aerial vehicle (UAV) are discussed. The vehicle architecture is based on a commercially available non-autonomous flyer called the Vectron Blackhawk Flying Saucer. Due to its full body rotation, the craft is more …
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A vehicle design and optimization model for on-demand aviation
… battery-powered electric aircraft. A conceptual design and optimization tool for on-demand aviation is presented in this thesis. The tool uses Geometric Programming, a class of optimization problems with extremely fast solve times and for which global optimality is guaranteed. The optimization …
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Entry, descent and landing vehicle design space exploration for crewed Mars missions
… performance of entry, descent and landing (EDL) vehicles compared to previous successful robotic missions and ones currently planned for the near future. The work presented in this thesis attempts to look at the effect of individual vehicle and mission design parameters on the overall EDL system …
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Guardrail Height Safety Requirements Given Recent Crash History and Evolution of Vehicle Design
… a critical last line of defense in preventing vehicles from leaving the roadway and impacting potential hazards. As vehicles are ever changing, it is necessary for guardrail design to adapt in response. Many contemporary vehicles such as sport utility vehicles and light trucks have higher …
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Development of an Aggregation Methodology for Risk Analysis in Aerospace Conceptual Vehicle Design
… to make robust, sound decisions about their design and deployment. Acquiring as much data as possible requires the use of empirical statistics, historical information and expert opinion. In much of the aerospace conceptual design environment, the lack of historical information and …
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A practical application of concept selection methods for high-speed marine vehicle design
Naval ship design and construction has been in existence for thousands of years. Over that time, many tools have been developed to aid naval architects in the quest for an optimal design, whether fast and sleek like a racing boat or big and square like an oil tanker. In any case, the basic naval …
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Analysis of a heavy lift launch vehicle design using small liquid rocket engines
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1988.
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Vehicle design, flight control avionics, and flight tests for the Parent and Child Unmanned Air Vehicle
The Parent and Child Unmanned Aerial Vehicle (PCUAV) is the second project to originate from the MIT / Draper Technology Development Partnership, which aims to develop first-of-a-kind systems. The PCUAV proposes a low-cost solution to long distance closeup observation, using the cooperative action …
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Safety-guided design & analysis of space launch vehicles
… has brought about a new age of space launch vehicle design. In order to survive in a competitive market, space launch providers must design systems with new technologies in shorter development times. This changing nature of space launch vehicle design requires a new way to perform safety …
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A coarse-grained variable-complexity MDO paradigm for HSCT design
Modern aerospace vehicle design requires the interaction of multiple disciplines, traditionally processed in a sequential order. Multidisciplinary optimization (MDO), a formal methodology for the integration of these disciplines, is evolving toward methods capable of replacing the traditional …
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Design of a novel rotary compact power pack for the series hybrid electric vehicle. Design and simulation of a compact power pack consisting of a novel rotary engine and outer rotor induction machine for the series hybrid electric vehicle powertrain.
Hybrid electric vehicles significantly reduce exhaust emissions and increase fuel economy. Power packs are the most fundamental components in a series powertrain configuration of a hybrid vehicle, which produce the necessary power to run the vehicle. The aim of this project is to design a compact …
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Integrated Design of Solid Rocket Powered Vehicles Including Exhaust Plume Radiant Emission
For aircraft and rockets where vehicle visibility is a concern, exhaust plume radiant emission is an important aspect of solid rocket powered vehicle performance. However, it is often not considered during the design phase, despite significant couplings with other vehicle disciplines, especially …
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Statistical Characterization of Vehicle and Track Interaction Using Rail Vehicle Response and Track Geometry Measurements
… evaluates the dynamic interaction between rail vehicles and the track on which they travel. The measurements were analyzed in the time and frequency domain. The effects of external parameters such as the vehicle design, subgrade stiffness, and degree of curvature were analyzed and compared for …
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Variable Bus Voltage Modeling for Series Hybrid Electric Vehicle Simulation
… these future technologies is the hybrid electric vehicle (HEV), typically featuring both an internal combustion engine and an electric motor, with the goal of producing fewer emissions while obtaining superior fuel economy. While vehicles such as the Virginia Tech designed and built HEV Lumina …
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Injury Metrics, Real World Crash Reconstruction, and Robust Injury Prediction for a Human Body Model in Side Impact
Motor vehicle crashes (MVCs) are a significant public health problem. Worldwide, MVCs kill over 1.2 million people each year. Improved understanding of the occupant loading conditions in real world crashes is critical for injury prevention and new vehicle design. Real world crash reconstructions …
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Error Estimations in the Design of a Terrain Measurement System
… surface measurement is an important tool in vehicle design work as well as pavement classification and health monitoring. �Non-deformable terrains are the primary excitation to vehicles traveling over it, and therefore it is important to be able to quantify these terrain surfaces. Knowledge …
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Design and implementation of liquid cooling system for ArchiMITes vehicle
MIT Vehicle Design Summit is building ArchiMITes, a lightweight hybrid vehicle with a modular auxiliary power unit. For testing purposes, the vehicle platform will first be built as an all-electric vehicle. It will be powered by five lithium ion batteries that generate a total of 700 W of heat. …
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