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 23 for “"Vehicle Suspensions"”.
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Energy regeneration and control in vehicle suspensions
… the overall dynamical performance of the vehicle. It is shown that typical regenerative devices comprising of a linear-to-rotational element driving a permanent-magnet generator can be simply modelled as a dissipative admittance in parallel with an inerter. This configuration allows the …
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Design Methodology of Electromagnetic Shock Absorbers for Vehicle Suspensions
L'abstract è presente nell'allegato / the abstract is in the attachment
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Optimization of the random vibration characteristics of vehicle suspensions
Thesis (Sc. D.)--Massachusetts Institute of Technology. Dept. of Mechanical Engineering, 1967.
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Transient Motion Control of Passive and Semiactive Damping for Vehicle Suspensions
… at the tires. The model outputs include the vehicle body heave and roll displacements, the vertical displacement of the tire (wheel hop) and the vertical acceleration of the vehicle body. For each output, the maximum peak-to-peak and RMS values of the response are examined. The results of the …
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An analytical investigation of a Panhard rod restraint for beam-axle vehicle suspensions
… to the ride and handling performance of road vehicles with beam-axle suspensions are analyzed through study of the roll plane dynamics of a modern high-decker highway bus. A nonlinear kineto-static model of the candidate vehicle is first developed and analyzed to investigate the variations in …
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Design, Modeling and Control of Vibration Systems with Electromagnetic Energy Harvesters and their Application to Vehicle Suspensions
… application of replacing the viscous damper in vehicle suspensions. Compared to commercial linear harvesters, the proposed design is able to provide large damping forces and increase power-dissipation density, making it suitable to vehicle suspensions. In addition, the proposed MMR-based …
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An investigation of vibration isolation systems using active, semi-active and tunable passive mechanisms, with applications to vehicle suspensions
… of mechanical systems, especially ground vehicle applications. A hybrid active vibration isolation system, incorporating an electro-magnetic force generator along with passive damping and spring elements, is mathematically modeled based on fundamental physical laws and taking into account …
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Estimation of Disturbance Inputs to a Tire Coupled Quarter-car Suspension Test Rig
… for use in active control methods applied to vehicle suspensions. This estimate is achieved with two acceleration measurements as inputs to the estimator; one each on the sprung and unsprung masses. This method is differentiated from current disturbance accommodating control, bilinear …
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Ride and roll performance analysis of a vehicle with spring loaded interconnected hydro-pneumatic suspension
… interconnected hydro-pneumatic system for vehicle suspensions. In this dissertation, spring loaded hydro-pneumatic suspension, interconnected in roll plane, is analytically investigated for its ride and handling performance. A highway bus equipped with passive type spring loaded …
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Optimal control with structure constraints and its application to the design of passive mechanical systems
… tuned-mass dampers, passive vehicle suspensions, and others.
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Dynamic simulation of semi-active suspension systems for durability analysis
The benefits of vehicles with semi-active suspension systems have been widely accepted, mainly for improvement in ride and handling, over the passive system. However, the durability of the suspension components resulting from this implementation received very little attention. Therefore, this …
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Analysis and Development of Control Methodologies for Semi-active Suspensions
Semi-active suspensions have drawn particular attention due to their superior performance over the other types of suspensions. One of their advantages is that their damping coefficient can be controlled without the need for any external source of power. In this study, a handful of control …
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Optimisation of racing car suspensions featuring inerters
Racing car suspensions are a critical system in the overall performance of the vehicle. They must be able to accurately control ride dynamics as well as influencing the handling characteristics of the vehicle and providing stability under the action of external forces. This work is a research study …
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Development of a Visual Demonstration Platform for Parallel Evaluation of Active Suspension Systems
Vehicle suspensions have been a major focus of research and design since the introduction of the automobile. The two major characteristics that define the performance of a specific suspension design are the vehicle ride and handling. A simplified view of chassis development is that a desirable …
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Impacts of managed realignment on low-lying coasts
… to develop an approach to active and semi-active suspensions which was ready to be applied directly in a prototype vehicle, and which would have the potential to be deployed in production. We develop a general design framework for time-domain optimal control of active suspensions that aims to …
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Advances in combined architecture, plant, and control design
… final case study involves the design of active vehicle suspensions. All three design domains are considered in this problem. A class of architecture, plant, and control design problems which utilize linear physical elements is discussed. This problem class can be solved using the methods in this …
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