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 9 of 9 for “"track testing"”.
-
The Use of Simulation to Expedite Experimental Investigations of the Effect of High-Performance Shock Absorbers
Successful race teams rely heavily on track testing to search for the ideal suspension setup. As more restrictions are placed on the amount of on-track testing by major racing sanctioning bodies, such as NASCAR, teams have increased their attention to alternate testing methods to augment their …
-
Optimal Vehicle Path Generator Using Optimization Methods
… with a feedback steering controller to automate track testing experiment. This study specifically concentrates on applying optimization concepts to generate paths that meet two separate objective functions; minimum time and maximum tire forces. A three-degree-of freedom vehicle model is used to …
-
High-Speed Roll Stability Evaluation of A-Double Tractor-Trailers
… trailers is evaluated through simulation and track testing. The changes in CG position due to the type of trailer (straight-rail vs. drop-frame) and laterally and longitudinally off-centered loads are considered. The simulation results show that imbalanced trailer loading induces roll …
-
Experimental Evaluation of Roll Stability Control System Effectiveness for A-double Commercial Trucks
Some of the results of an extensive track testing program at the Center for Vehicle Systems and Safety (CVeSS) at Virginia Tech for evaluating the roll stability of commercial trucks with 33-ft A-double trailers are evaluated. The study includes straight-rail trailers with heavy and light loading …
-
Identifiability and parameter estimation in rail vehicle dynamics
… decisions, and they can reduce the amount of on-track testing required to qualify new designs for service. This work addresses two major issues: the determination of parameter identifiability and the estimation of rail vehicle parameters from laboratory tests. Usually, the identifiability issue …
-
Design of a Portable Tire Test Rig and Vehicle Roll-Over Stability Control
… the easiest and cheapest method for vehicle testing. No longer do multiple, intensive, physical tests need be performed to analyze the performance parameters that one wishes to validate. One component of the vehicle simulation that is crucial to the correctness of the result is the tire. …
-
Don’t forget to save! User experience principles for video game narrative authoring tools.
… general Themes and five principles (Metaphor Testing, Fast Track Testing, Structure, Experimentation, Branching) that highlight evidenced behavioral trends of authors based on different user experience design factors within IDN authoring tools. This represents some of the first work in this …
-
Experimental Evaluation of the Dynamic Performance Benefits of Roll Stability Control Systems on A-train Doubles
… the forces and moments that can result during testing. A load structure is used for placing the ballast loads within the trailers at a suitable height for duplicating the CG height of the trailers during their commercial use. Outriggers and jackknifing arresting mechanisms are used to prevent …
-
Development of a New Cold Binder Course Emulsion Asphalt
… hydration reaction. A laboratory programme of testing measured the stiffness modulus, conducted at 1, 3, 7, 14, 28, 90 and 180 days. Susceptibility to temperature, wheel track testing to establish rutting resistance, fatigue resistance measured by a four-point beam bending test, fracture …