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Integrated Durability Analysis Of A Vehicle Through Virtual Simulation., Craig Wood
Integrated Durability Analysis Of A Vehicle Through Virtual Simulation., Craig Wood
Electronic Theses and Dissertations
The intent of this research is to create a high fidelity multibody dynamics model of a compact Sport Utility Vehicle (SUV) using CATIA, ADAMS and NASTRAN software suites. These software packages together are used to conduct virtual proving ground simulations. An MTS 329 series Road Test Simulator (RTS), which uses servo-hydraulic actuators to replicate vehicle proving ground is used to correlate results. The overall objective is to be able to predict component failure earlier in the design process, and to reduce the amount of time spent conducting physical durability tests. This thesis builds on research currently being conducted by many …
Development And Analysis Of A Prototype Car-Carrier Structure Using The Finite Element Method., Zhanbiao. Li
Development And Analysis Of A Prototype Car-Carrier Structure Using The Finite Element Method., Zhanbiao. Li
Electronic Theses and Dissertations
A very common mode for transporting vehicles over land in North America is the use of truck car-carriers. This thesis describes a computer-based modeling, simulation, and validation effort to aid in the development, testing, and design improvements of the structure of a prototype car-carrier. Car-carrier structures often crack and break during service due to fatigue stress application. In addition, the large deflections on the top decks of the trailer of a car-carrier may cause considerable damage to the carrier's structure and to the loaded vehicles due to possible collisions with the carrier as well as collisions with other loaded vehicles. …
Detection Of Cylinder Bore Non-Cleanup Using Modeling Of Piston Ring Dynamics., Matthew. Bitzer
Detection Of Cylinder Bore Non-Cleanup Using Modeling Of Piston Ring Dynamics., Matthew. Bitzer
Electronic Theses and Dissertations
A study was undertaken to develop a method of detecting an automotive engine manufacturing defect known as cylinder bore non-cleanup. This defect is best described as a rough surface finish inside any cylinder bore of an engine. This defect causes increased piston ring wear and engine noise and vibration. Recently published literature on engine vibration analysis and defect detection is presented. Special emphasis was placed on engine dynamic modeling. This study examines the effects of cylinder bore non-cleanup on the motion of the piston rings. This is accomplished by modeling the dynamics of the piston and piston rings using a …
The Addition Of Hydrogen And Oxygen To A Gasoline-Fuelled Si Engine To Enhance Combustion And Reduce Emissions., Tina. D'Andrea
The Addition Of Hydrogen And Oxygen To A Gasoline-Fuelled Si Engine To Enhance Combustion And Reduce Emissions., Tina. D'Andrea
Electronic Theses and Dissertations
Automobiles have become an essential part of our economy and provide a convenience that most have become dependent on, however they have also had a dramatic impact on our health and environment. As a result there is an incentive to find ways to more efficiently use conventional fuels and decrease emissions while alternative fuels and vehicles are being developed. This research involved studying the effects of adding small amounts of hydrogen and hydrogen and oxygen to a gasoline fuelled spark ignition (SI) engine. The hydrogen and oxygen were added in a ratio of 2:1, mimicking water electrolysis products. It was …
Development Of A Tire Characterization Unit Using Four Post Road Test Simulator., Egidio Mosca
Development Of A Tire Characterization Unit Using Four Post Road Test Simulator., Egidio Mosca
Electronic Theses and Dissertations
Effective Road Profile (ERP) Control is a relatively new simulator control strategy which shows a great deal of promise in reducing automotive suspension and structural testing times, thus shortening the product development cycle. The key to ERP is a linearly approximated tire model consisting of a characteristic stiffness of the spring elements within the model (K), characteristic damping coefficient of damper elements within the model, (C), and the tire modal mass (MMTM). The tire parameters can be purchased as a data set from MTS Systems Corporation for approximately $6000 US per tire. This thesis offers an alternate method of obtaining …
Investigation Of Completeness Of Combustion In Cng Fueled Spark Ignition Engines., Mohsen Battoei Avarzaman
Investigation Of Completeness Of Combustion In Cng Fueled Spark Ignition Engines., Mohsen Battoei Avarzaman
Electronic Theses and Dissertations
The focus of this study was to apply and evaluate two separate techniques for estimating of the completeness of combustion in a multi-cylinder engine fueled with compressed natural gas. The degree of correlation between such two independent estimates of the combustion completeness was sought. One technique, with better time resolution and viewed to be more accurate, calculates the completeness of combustion on a cycle-by-cycle basis using in-cylinder pressure measurements. The technique utilizes the normalized pressure rise parameter due to combustion to describe the completeness of combustion. The second technique evaluates the completeness of combustion based on time-averaged measurements of unburned …