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 20 of 44 for “"Suspension systems"”.
-
Axiomatic design of customizable automotive suspension systems
The design of existing suspension systems typically involves a compromise solution for the conflicting requirements of comfort and handling. For instance, cars need a soft suspension for better comfort, whereas a stiff suspension leads to better handling. Cars need high ground clearance on rough …
-
On Motion Mechanisms of Freight Train Suspension Systems
<p>In this dissertation, a freight train suspension system is presented for all possible types of motion. The suspension system experiences impacts and friction between wedges and bolster. The impacts cause the chatter motions between wedges and bolster, and the friction will cause the stick and …
-
Dynamic Analysis of Alternative Suspension Systems for Sport Motorcycles
… model by including different non-conventional suspension systems. Girder and Hossack double wishbones front suspension systems are designed, implemented and tested. Using a synthesis of mechanism methodology, they are designed with different kinematic configurations that allow different …
-
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 …
-
Durability Analysis of Helical Coil Spring in Vehicle Suspension Systems
The suspension system in vehicles supports the vehicle's road stability and ride quality by scaling down the vibration responses resulting from road surface's roughness. This research focuses on fatigue life analysis of coil spring component. Static linear analysis is conducted on the 3D model of …
-
Evaluation of Wave-Adaptive Modular Vessel Suspension Systems for Improved Dynamics
… Vessel (WAM-V) when outfitted with different suspension systems. Instrumented with an array of sensors, the vessel is tested with two different suspension arrangements to characterize how they affect WAM-V dynamics, and to ultimately select a suspension that is most suitable for the 33ft WAM-V …
-
Neural network identification of quarter-car passive and active suspension systems
… effort has been done on the design of active suspension systems based on a quarter-car model with both full-state feedback and incomplete state feedback controllers to optimize the passenger ride comfort, road handling and car controlling. Linear stochastic optimal control will be employed to …
-
An analytical investigation of passive and active suspension systems for articulated freight vehicles
… vehicles. Different active and passive suspension systems are thus analyzed to enhance the performance characteristics of articulated freight vehicles. The investigation is carried out in five phases: (i) development of a representative dynamic model of the vehicle; (ii) passive …
-
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 …
-
Combined Time and Frequency Domain Approaches to the Operational Identification of Vehicle Suspension Systems
… investigation into the identification of vehicle suspension systems from measured operational data. Methods of identifying unknown parameter values in dynamic models, from experimental data, are of considerable interest in practice. Much of the focus has been on the identification of mechanical …
-
A pneumatic semi-active control methodology for vibration control of air spring based suspension systems
<p>This research investigates a pneumatic suspension system containing an air spring, air flow valve, and an accumulator, where the spring and damping functions are combined into one package. The spring and accumulator provide the spring characteristics, and the computer controlled adjustable valve …
-
Some aspects of wind tunnel magnetic suspension systems with special application at large physical scales
… a century of development, wind tunnel magnetic suspension and balance systems (MSBSs) have so far failed to find application at the large physical scales necessary for the majority of whole model aerodynamic testing. Recent developments, such as the cryogenic operation of wind tunnels and …
-
Physics-based Modeling Techniques for Analysis and Design of Advanced Suspension Systems with Experimental Validation
… of vibration control of vehicular and structural systems using intelligent materials and controllable devices. Advanced modeling tools validated with experimental test data are developed to help with understanding the fundamentals as well as advanced and novel applications of smart and …
-
Ride Simulation of Passive, Active, and Semi-Active Seat Suspensions for Off-Road Vehicles
… developed for passive, active, and semi-active suspension systems for off-road vehicle seat suspensions. Each suspension model was combined with a three degree of freedom model of the vehicle operator to formulate models of the ride systems of off-road vehicles. Ride performance of the …
-
Active Suspension Design Requirements for Compliant Boundary Condition Road Disturbances
The aim of suspension systems in vehicles is to provide the best balance between ride and handling depending on the operating conditions of a vehicle. Active suspensions are far more effective over a variety of different road conditions compared to passive suspension systems. This is because of …
-
Design of a rear powertrain and suspension system for an electric vehicle
… of the design process of the drivetrain and suspension systems made for the purpose of converting a 1972 Opel GT to electric power. The goals of this study were to optimize the suspension for ride handling as well as integrate the suspension and power systems into a single modular unit that …
-
Investigation into low power active electromagnetic damping for automotive applications
Automobile suspension systems carry 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 …
-
Compliant Mechanism Suspensions
… the use of compliant mechanisms in vehicle suspension systems, specifically where a compliant mechanism acts as part of the wheel locating mechanism and as the energy storage element. A compliant mechanism has the potential of reducing part count, joints, and manufacturing and assembly costs …
-
Racing Suspension in Rally Motorsports
This thesis was conducted to demonstrate how suspension choices significantly impact the performance outcomes and competitiveness of rally racing cars. The exploration begins with a historical overview of rally racing, tracing its evolution to the present day. The study delves deeply into …
-
Control and design of a single degree-of-freedom magnetic levitation demonstration
Controlling and stabilizing magnetic suspension systems is a difficult design task because several non-linearities and noise in both magnet physics and sensor performance can cause instability. This thesis investigates methods of building and controlling a stable, single degree-of-freedom magnetic …
Page 1 of 3