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 12 of 12 for “"tire wear"”.
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Integrated Experimental Methods and Machine Learning for Tire Wear Prediction
A major challenge in tire research, is tire wear modeling. There are too many factors affecting tire wear, and part of those factors are difficult to be accurately expressed in physics and math. The objective of this research is to develop a machine learning based rubber sample wear model, and find …
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VEHICLES¿ NON-EXHAUST EMISSIONS: SETUP OF EXPERIMENTAL APPROACHES FOR ON-ROAD CHARACTERIZATION OF TIRE WEAR AND ROAD DUST PARTICLES
… emissions (NEEs), particularly those from tire and road wear particles (TRWPs), have emerged as a dominant and under-investigated source of airborne particulate matter. TRWPs are mechanically generated, chemically complex, and highly variable, posing challenges for both environmental …
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Development of a multi-physics tire model for wear and thermal estimation in the finite element environment
… improving the understanding of vehicle dynamics, tire wear and tire modeling is finite element techniques. For accurate static, steady-state, and dynamic tire mechanics in simulation, a highly accurate tire model needs to be modeled and validated in multiple domains. This research focuses on the …
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Real-time decision making in motorsports : analytics for improving professional car race strategy
… positions. Secondly, we classify tracks based on tire wear and the ratio of 2 versus 4 tire change decisions for pit stops. We find that a driver's performance in early stages of the race is similar to performance in later stages, suggesting that final race outcomes may be inferred from earlier …
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Optimal Vehicle Path Generator Using Optimization Methods
… objective functions; minimum time and maximum tire forces. A three-degree-of freedom vehicle model is used to approximate the handling dynamics of the vehicle. Inputs into the vehicle model are steering angle and longitudinal force at the tire. These two variables approximate two requirements …
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Analytical Modeling for Sliding Friction of Rubber-Road Contact
Rubber friction is an important aspect to tire engineers, material developers and pavement engineers because of its importance in the estimation of forces generated at the contact, which further helps in optimizing tire and vehicle performances, and to estimate tire wear. It mainly depends on the …
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Improved Vehicle Dynamics Sensing during Cornering for Trajectory Tracking using Robust Control and Intelligent Tires
Tires, being the only component of the vehicle in contact with the road surface, are responsible for generating the forces for maintaining the vehicle pose, orientation and stability of the vehicle. Additionally, the on-board advanced chassis control systems require estimation of these tire-road …
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Enhancing Network-Level Pavement Macrotexture Assessment
… splash and spray, ambient and in-vehicle noise, tire wear, and rolling resistance. While devices and general guidance exist to measure macrotexture, the wide-scale collection and use of macrotexture is neither mandated nor is it typically employed in the United States. This work seeks to improve …
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Multi-scale analysis of 6PPD-quinone: distribution, environmental risk, and urbanization influence in the Delaware River Basin
Tire wear particles (TWPs) represent a pervasive and chemically complex class of urban contaminants. Among these, 6PPD-quinone (6PPDQ) an oxidative transformation product of the anti-degradant i.e., N-(1,3-dimethylbutyl)-N′-phenyl-p-phenylenediamine (6PPD), have emerged as contaminant of critical …
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Downstream Dilemma: Navigating Microplastic's Impact on Freshwater Symbiosis in the Anthropocene
… to microplastics of fibrous, microsphere, and tire wear particle morphologies while varying symbiont densities. We used the crayfish-branchiobdellidan model system in our study due to its amenability to laboratory monitoring and manipulation. The crayfish C. appalachiensis, common in the …
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Drivers and effects of plastic contamination in aquatic ecosystems
… contaminated food pellets (using polyethylene or tire wear particles) and compared to a control group for 60 days. Then, differences in behavioural changes and swimming capacity were tested. The results show that exposure to MPs affected fish behaviour, and in particular the native species changed …
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Development of Comprehensive Experimental, Analytical and, Numerical Methods for Predicting Rubber Friction and Wear under Thermomechanical Conditions
… in different applications, such as constructing tires, artificial joints, shoe heels, and soles. A study on the different characteristics of viscoelastic materials has always been a matter of interest in order to improve their properties for various applications. In the automotive industry, …