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 350 for “"Tire"”.
-
Identification of Tire Dynamics Based on Intelligent Tire
Sensor-embedded tires, known as intelligent tires, have been widely studied because they are believed to provide reliable and crucial information on tire-road contact characteristics e.g., slip, forces and deformation of tires. Vehicle control systems such as ABS and VSP (Vehicle Stability Program) …
-
Operational Modal Analysis of Rolling Tire: A Tire Cavity Accelerometer Mediated Approach
… is influenced by the rolling dynamics of the tire. Driven by pressing environmental concerns, the automotive industry has strived to innovate fuel-efficient and quieter powertrain systems over the last decade. This has eventually led to the prevalence of hybrid and electric vehicles. With the …
-
Systematic Tire Testing and Model Parameterization for Tire Traction on Soft Soil
Tire performance over soft soil influences the performance of off-road vehicles on soft soil, as the tire is the only force transmitting element between the off-road vehicles and soil during the vehicle operation. One aspect of the tire performance over soft soil is the tire tractive performance on …
-
Machine-Learning based tool to predict Tire Noise using both Tire and Pavement Parameters
Tire-Pavement Interaction Noise (TPIN) becomes the main noise source contributor for passenger vehicles traveling at speeds above 40 kph. Therefore, it represents one of the main contributors to noise environmental pollution in residential areas nearby highways. TPIN has been subject of exhaustive …
-
Intelligent Tire Based Tire Force Characterization and its Application in Vehicle Stability and Performance
In any automotive system, the tires play a very crucial role in defining both the safety and performance of the vehicle. The interaction between the tire and the road surface determines the vehicle's ability to accelerate, decelerate and steer. Having information about this interaction in real-time …
-
Tire Modeling and Friction Estimation
… traction limit set by the friction between the tires and the road can, however, not be overridden. The behavior of tires is, therefore, an important issue since it determines the possibilities to control the vehicle. One essential task for the vehicle control system is to be able to fully …
-
Pneumatic Tire Performance on Ice
… to the complex frictional mechanism at the tire-ice interface. The tire is only force transmitting element of the vehicle, to the surface. Thus it is very essential to have in depth understanding of the contact phenomena at the tire-ice interface, to improve vehicle safety on icy roads. This …
-
Development of an Intelligent Tire Based Tire - Vehicle State Estimator for Application to Global Chassis Control
The contact between the tire and the road is the key enabler of vehicle acceleration, deceleration and steering. However, under the circumstances of sudden changes to the road conditions, the driver`s ability to maintain control of the vehicle maybe at risk. In many cases, this requires …
-
Tire Performance Estimation Under Combined Slip and Empirical Parametrization of the Tire Rut on Dry Sand
… heavily influence the interaction with the tire, it is necessary to characterize the terrain from a tire performance and vehicle mobility perspective. Failure to properly understand the tire-terrain interaction can lead to undesirable conditions like loss of vehicle mobility due to excessive …
-
Experimental Study of Tire Inner Liner
<p>Cracks were observed in field tested tire inner liners. When two versions of the material were studied with specialized Adkins Creep Fixtures, it was found that cracks developed parallel to the loading direction in samples tested at cold temperatures (-40 C in this study). Also, an experimental …
-
Central Tire Inflation for Agricultural Vehicles
… compaction. In addition to the theory, a central tire inflation system and instrumentation to measure performance were installed on a tractor and used to evaluate the vehicle performance on several hard surfaced test courses and in the field. The results showed a 99% improvement in ride, a 2% …
-
Development and optimization of a wide base FEA truck tire model for prediction of tire-road interactions
… way to do so is through the use of pneumatic tires, which are the only link between the chassis and the ground interface. With recent advancements in the computational efficiency of modern computers, there has been a dynamic movement towards virtual modeling and experimentation of pneumatic …
-
Modal Analysis of a Discrete Tire Model and Tire Dynamic Response Rolling Over Short Wavelength Road Profiles
… the modal parameters of a deflected and rolling tire represents a challenge due to the complex vibration characteristics that cause the tire's symmetry distortion and the natural frequencies' bifurcation phenomena. The modal parameters are usually extracted using a detailed finite element model. …
-
Tire Models for Use in Braking Applications
The tire is a significant part for control of a vehicle. For a well-working brake system the contact properties between the tire and the ground is the limiting factor for a safe braking. To get optimal performance it is important that the system can utilize all friction resources. The brush tire …
-
Static Tire Characterization for Race Vehicle Setup
In order to provide data for non-rolling tire models that are used in computer simulations of vehicle dynamics, a tire test rig is designed and manufactured which attaches to an MTS kinematics and compliance machine. This test rig is developed for the purpose of characterizing the loaded radius, …
-
A Coupled Tire Structure-Acoustic Cavity Model
… have shown that the vibration induced by the tire air cavity resonance is transmitted into the vehicle cabin and may be responsible for significant interior noise. The tire acoustic cavity is excited by the road surface through the contact patch on the rotating tire. The effect of the cavity …
-
Modelling and validation of agricultural tire-terrain interaction
… methods have paved way for accurately simulating tire-terrain interaction. By predicting forces, vibrations, and numerous physical effects, any industry with pneumatic tires can greatly reduce time, cost and effectively design and improve their machinery. The modelling and validation of a High Lug …
-
Nylon Tension PID Control During Raw Tire Assembly
… has the best control of nylon tension during raw tire assembly. After nylon application step of the tire building process, the shape of the tire will undergo inflation that causes the nylon layers to expand and produces tension gradient. To overcome such a problem, the process needs to preapply a …
-
Applying Neural Networks for Tire Pressure Monitoring Systems
<p>A proof-of-concept indirect tire-pressure monitoring system is developed using neural net- works to identify the tire pressure of a vehicle tire. A quarter-car model was developed with Matlab and Simulink to generate simulated accelerometer output data. Simulation data are used to train and …
Page 1 of 18