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.
Results
Showing 1 to 10 of 10 for “"Vertical Dynamics"”.
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Vertical dynamics of railway vehicle-track system
A comprehensive finite element (FE) model of railway vehicle-track system is developed to study the dynamic interaction between the vehicle and track. The vehicle is represented by a lumped parameter system. The track is modeled as a Timoshenko beam on discrete pad-tie-ballast supports. The tie is …
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Improved Vehicle Dynamics Sensing during Cornering for Trajectory Tracking using Robust Control and Intelligent Tires
… model places an emphasis on the lateral dynamics of the vehicle by integrating the effects of relaxation length on the contact patch force generation. The vertical dynamics of the vehicle have also been analyzed, and a novel double damper has been mathematically modeled and experimentally …
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Linear Control of Unmanned Aerial Vehicles
… flight data to capture both in-plane and vertical dynamics. The identified models are subsequently utilized to construct a cascade control architecture featuring a PID inner loop and a proportional outer loop. Frequency-domain analysis informs the tuning process to ensure precise …
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Theoretical modeling of pilot-wave hydrodynamics
… a number of theoretical models describing the dynamics of a droplet walking on a vibrating liquid bath. We first review the hierarchy of theoretical models developed to describe this system. We begin with the stroboscopic model of Oza et al. (2013), and elucidate the role of spatial …
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Weighing the Milky Way While Exploring Dynamical Disequilibrium
… velocity and mean azimuthal velocity in the vertical phase space. Under such a context, while baryonic-dark decomposition remains a fundamental problem, understanding the Milky Way’s disequilibrium also becomes important. In this thesis, we developed new algorithms to simultaneously fit the …
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Model-agnostic Methodology for High-Altitude Balloon Mission Planning
… multi-platform mission with HAB vehicle dynamics that are date dependent is an unsolved problem. There is a need for modeling high-altitude balloons in this way for multi-domain mission planning, and with technology getting smaller, specifically a need to model smaller latex high-altitude …
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Technology Transfer through High Technology Corridors : A Study of Multi-agency Partnership Learning.
… adequately describe learning between levels. The vertical communication between activity systems is impeded by boundaries defined by political power and agency. Vertical boundaries between activity systems separate three levels of HTC policy enactment and these resist movement between levels. …
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The distribution and dynamics of planktonic rotifera in the North Island, New Zealand
The distribution and dynamics of planktonic rotifers, at various spatial and temporal scales, were investigated in lakes of the North Island, New Zealand. The overall aim was to provide a better understanding of the relative influence of various environmental gradients in determining the …
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Flexibility in Platform Operations
… on platforms influence both (i) horizontal dynamics across market sides and (ii) vertical dynamics in a supply chain. Chapter 2 investigates the horizontal interaction between demand-side and supply-side flexibility incentives. While such incentives are common on both the demand (e.g., "wait …
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Modal Analysis of a Discrete Tire Model and Tire Dynamic Response Rolling Over Short Wavelength Road Profiles
… tread or sidewall as inputs or outputs. The vertical movement of the wheel was incorporated into the in-plane rigid–elastic-coupled tire modal model to extract the transfer function (TF) that connects road irregularities as an input to the wheel's vertical movement as an output. The TF was …