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 32 for “"Manoeuvrability"”.
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AeroDima: a cheetah-inspired aerodynamic tail for rapid manoeuvrability
… animal has been hypothesised to use its tail for manoeuvrability and has been the source for many bio-inspired robotic tails. However, the use of a lightweight tail to achieve the same effects has not be studied. This paper goes into the study of using a lightweight, aerodynamic tail to increase …
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A novel adaptive servo assistance device to enhance wheelchair manoeuvrability and propulsion
L'abstract è presente nell'allegato / the abstract is in the attachment
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An Investigation of Higher Capacity Urban Freight Vehicles
… safety of other road users, and reduced manoeuvrability. This thesis discusses technologies for improving safety of vulnerable road users, and frameworks for assessing the maximum size of urban freight vehicles. An overview of the freight industry is provided in Chapter 1, with a focus on …
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Enhancing roll stability and directional performance of articulated heavy vehicles based on anti-roll control and design optimization.
… system models is also presented. AHVs have poor manoeuvrability when travelling at low speeds on local roads and city streets. On the other hand, these vehicles exhibit unstable motion modes at high speeds, including jack-knifing, trailer sway and rollover. From the design point of view, the …
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Torque Actuated Rear Steering for Urban Electric Commercial Vehicles
… to: 1. Increase vehicle length while maintaining manoeuvrability at low speeds, 2. At high speed, improve roll-over stability and emergency braking and cornering performance while maintaining accurate path following. Chapter 1 reviews the current state of greenhouse gas emissions within the …
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Metrics for Evaluating Surgical Microscope Usage During Myringotomy
… capable of numerically evaluating microscope manoeuvrability and qualitatively assessing surgical expertise of a subject during a middle ear surgery called myringotomy. The experiment involved performing a myringotomy on a fixed cadaveric ear. As participants, experienced ear-nose-throat (ENT) …
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Local adaptation of Geoffroy's horseshoe bat, Rhinolophus clivosus, to the Cape floristic region of South Africa
… in wing loading with a consequent increase in manoeuvrability. Thus R. clivosus at De Hoop is simply a scaled-down version of R. clivosus elsewhere and a scaled-up version of R. capensis. Factors such as competition and gene flow may have mitigated against local adaptation, however. …
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Manoeuvreergedrag van containerschepen in slibrijke vaarwateren Manoeuvring Behaviour of Container Vessels in Muddy Navigation Areas
… least the ship can be controlled. To assess the manoeuvrability a comprehensive experimental program has been carried out in the Towing Tank for Manoeuvres in Shallow Water – collaboration Flanders Hydraulics Research – Ghent University in Antwerp. During this program the ship’s behaviour has …
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State estimation of a cheetah spine and tail using an inertial sensor network
… about how it achieves these incredible feats of manoeuvrability. The transient motions of the cheetah all involve rapid flicking of its tail and flexing of its spine. The aim of the research was to develop tools (hardware and software) that can be used to gain a better understanding of the …
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Study and suppression of vibrations in rotary-wing Unmanned Aerial Vehicles
… of the quadrotors, they present high manoeuvrability and better payload than other rotary-wing UAV configurations, reason why their use and study has increased in the last past years. Because quadrotors are unmanned vehicles, very often autonomous, they rely completely on the …
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Mathematical modelling, flight control system design and air flow control investigation for low speed UAVs
… become more complex, advances in endurance and manoeuvrability become crucial. Due to the advances in material fabrication, wing morphing can be seen as an ideal solution for UAVs to provide improvements by overcoming the weight drawback. This thesis investigates the area of aircraft design and …
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Kinematic State Estimation using Multiple DGPS/MEMS-IMU Sensors
… of the transient locomotion. Quantifying the manoeuvrability of animals in their natural habitat to answer the question “Why are animals so manoeuvrable?” remains a challenge. This research aims to develop an outdoor MOCAP system that will allow tracking of the steady-state as well as the …
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Understanding the motions of the cheetah tail using robotics
The cheetah is capable of incredible feats of manoeuvrability. But, what is interesting about these manoeuvres is that they involve rapid swinging of the animal's lengthy tail. Despite this, very little is understood about the cheetah tail and its motion, with the common view being that it is …
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Intelligent mobility control of a hybrid electric off-road vehicle with individual wheel control
… Control are shown to be: improved stability and manoeuvrability; more predictable vehicle behaviour leading to reduced driver workload; accurate yaw rate tracking and increased safety at handling limits.
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Homeostatic-inspired controller algorithm for a hybrid-driven autonomous underwater glider
… they still have weaknesses in terms of speed and manoeuvrability due to the under-actuated system; relatively slow; limited propulsion forces; and limited external control surfaces. Furthermore, it is difficult to control the glider because of the high nonlinearity and complexity of the glider …
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Experimental and computational analysis for insect inspired flapping wing micro air vehicles
… Flight techniques such as control, stability and manoeuvrability are flight characteristics which an FWMAV must possess if such a device is employed for various rescue missions. With this in mind symmetrical and asymmetrical wing motions are studied experimentally in the current research programme …
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Europeanising Diplomatic Spectacles: A Praxeological Account of the Article 34 Negotiations of EU Member States at the UN in New York
… much local practical mastery marshalled both the manoeuvrability of the diplomat as well as their EUMS, but also managed to advance the collective group’s preferences as a whole. Such utilisation of skilful practices amounts to, what I label, a ‘Europeanising diplomatic spectacle’. The central …
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Vision-based trailer pose estimation for articulated vehicles
… rigid lorries, but exhibit reduced low-speed manoeuvrability and high-speed stability. Technologies such as autonomous reversing and path-following trailer steering can mitigate this, but practical limitations of the available sensing technologies restrict their commercialisation potential. …
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Mathematical Modelling and Control System Development of a Remote Controlled, IMU Stabilised Hexapod Robot
… and rescue as the hexapod has a high degree of manoeuvrability to access areas too dangerous for rescuers to access. With cameras mounted on the stabilised body, it can be used to locate survivors in a disaster area and assist rescuers in recovering them with speed.
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Development of hydraulic propulsion for colonoscopic devices
… were modelled, with a focus on thrust and manoeuvrability. Multiple hydro-jet prototypes were developed and used to assess a range of design options, including manoeuvring using on-board microvalves. A hydro-jet colonoscope system was constructed and tested in a synthetic human colon model. …
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