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 15 of 15 for “"Passenger Comfort"”.
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Energy Efficient Passenger Comfort in Underground Subway Environments
… method for commuters within dense urban areas. Passengers using underground subway systems are subjected to enclosed and crowded environments that must be controlled to maintain tolerable temperatures and ventilation. Modern subway stations and trains are cooled using conventional air …
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Passenger comfort during formation flight within atmospheric turbulence
… aviation. In light of this, the potential for passenger discomfort due to the formation flying through free air turbulence was considered in this study. In an attempt to approximately ascertain the increase in discomfort, a simple formation flight aerodynamic model for two aircraft in formation …
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Time-to-contact statistics as a proxy for accident probabilities
… of vehicles with bilateral control so that passenger comfort could be quantified. The results show that bilateral control improves passenger comfort.
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Investigation into low power active electromagnetic damping for automotive applications
… out two important functions; road handling and passenger comfort. Hydraulic passive dampers are the most common system employed on vehicles, yet it is well known that passive suspension systems are less effective on lightweight vehicles. Modern damper technologies such as semi-active and active …
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Advanced aircraft seat design : designing features for improving comfort and ergonomy
… creative and innovative means to improve passenger comfort in commercial airplane tourist-class seats during long haul flights. These means have been studied, designed, manufactured and tested consistent with the current size, space and safety constraints. The project involved three …
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Extremum seeking control of battery powered vapor compression systems for vehicles
… Battery powered VCS are critical for maintaining passenger comfort in engine-off situations, and are especially important to long-haul truck drivers who sleep inside their vehicle overnight. However, one drawback of battery powered vehicle VCS is their short lifespan which may not provide cooling …
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Decision-aiding and optimization for vertical navigation of long-haul aircraft
… the most important. Avoiding turbulence-for passenger comfort-topped the list of items which were not safety related. Pilots' decision making about the selection of flight profile on the basis of flight time, fuel burn, and exposure to turbulence was then observed. Of the several behavioral …
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Analysis of Transient and Steady State Vehicle Handling with Torque Vectoring
… transportation safety, environmental gains, and passenger comfort. The advent of Electric Vehicles has also facilitated greater flexibility in powertrain architectures and control capabilities. Path Tracking controllers that provide steering input are used to execute lateral maneuvers or model …
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Modal Analysis of Axisymmetric Structures using Zernike Polynomials and Machine Learning
… demand careful vibration control to ensure passenger comfort. Addressing these challenges calls for innovative approaches not only to interpret complex vibration patterns but also to streamline the analysis process. In the first part, ML-based classification frameworks are developed for …
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Understanding bus passenger crowding through origin destination inference
Comfort is an important aspect of the transit passenger experience. Crowding can significantly decrease passenger comfort and disrupt service delivery, causing passenger travel times to increase and even resulting in passengers being unable to board an arriving vehicle. Reducing crowding is …
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Adaptive Longitudinal and Lateral Control for Autonomous Vehicles: High-Speed Platooning of Articulated Trucks
… to minimize lateral acceleration (improving passenger comfort and safety) and reduce cross-track errors (CTEs) across various vehicle configurations, including articulated trucks. Simulation results confirmed the superiority of the clothoid-based controller in minimizing CTEs and maintaining …
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Synthesizing Vehicle Cornering Modes for Energy Consumption Analysis
… their associated velocity changes to maintain passenger comfort. This thesis evaluates the merit of discounting road curves in predictive vehicle energy consumption analyses and presents a technique for modeling common road corners that require velocity changes to limit passenger discomfort. …
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Die Gesetzmäßigkeiten des Fahrwerklaufs erprobter Multigelenk-Niederflurstadtbahnwagen
… vehicles, paying particular respect to disabled passengers. These trams have a constant floor height of not more than 350 mm throughout the whole vehicle. An indispensable precondition for this is to abandon the wheelsets and the principle of placing the drive motors between the wheels. Thus all …
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The effect of wing flexibility on ride comfort in formation flight
The paper addresses the issue of passenger ride comfort during formation flight. The study focuses on the vibration attenuation that occurs due to the aeroelastic effect, more particularly, on the influences these effects have on the magnitude of the fuselage accelerations. No distinction is made …
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Lumen Air : “the day I started an airline”
… prototype to better acclimate the body clock of passengers traveling on eight-hour plus flights to the time zone of their destination, thereby providing a more pleasant and peaceful journey. To achieve this end, I employed the use of lighting cues, which were carefully constructed visual looks …