Detta arbete sammanfattar en del av den forskning som gjorts på kugghjul och planetväxlar med avseende på egenskaper som lastfördelning, verkningsgrad och ingreppsstyvheter. En jämförelse görs mellan olika metoder för beräkning av ingreppsstyvheter vilken visar på stora skillnader. En planetväxel av typ D simuleras i flerkroppsdynamikprogramvaran MSC ADAMS där egenskaper som lastfördelning, vridstyvhet och utväxling undersöks.

Multi-body system dynamics is one of the most important theoretical achievementsin mechanics. With the development of the theory, corresponding commercialsoftware packages have been developed and are used for modellingand simulation of complicated large systems, such as air planes and vehicles.This kind of virtual prototypes can be used for studies and assessments ofreal systems even before the real systems are built. As a result, the high costprototype building and prototype testing can be saved, so as the time can bereduced. This is just the demand of modern industry. This theory can beapplied on the vehicle-virtual road interaction study which has been used inthis thesis.This thesis suggests a target velocity prole for a heavy vehicle which driveson tough road. Having uneven and hilly road, actual driving conditions arechanged as the driver runs the vehicle. Drivers can perceive the road conditionwith their visual organ and sense of balance and then they control theirvehicles more safely by re ecting various conditions of this target velocityprole. Without this process, the driving-stabilization on slope and twistingroads would fall considerably, and the problem could be directly connected tooverturning. This thesis, moreover, will show how to acquire the road data,extract the velocity prole, and verify the performance of the suggested velocityprole through virtual road test.In vehicle-virtual road interaction simulation, multi body system (MBS) dynamicswith software Adams has been employed to model an articulatedhauler. The simulation has been validated by velocity prole test data andcompared to the former velocity prole. This method can be used for estimatingthe eects of dynamic forces on the frame so that the load design canbe assessed in vehicle design process.This project is in collaboration with Volvo Construction Equipment AB,Braas, Sweden.

The validity of the traditional arts in contemporary society is often questioned by the wider public. This dissertation argues that one of the ways in which the arts attain value is through their function as political activism. In order to do so, it investigates the characteristics of resistance art. This is followed by a discussion of contemporary opera. While this genre is a minority interest when compared to popular music forms, it is, nevertheless, a form of resistance art that has the potential to fulfill a social and political function. The dissertation focuses on two case studies: John Adam's The Death of Klinghoffer (1990) and Paul Ruders's The Handmaid's Tale (2000), and concludes that contemporary opera can be relevant and effective socio-political critique. / Thesis (M.Mus.)--North-West University, Potchefstroom Campus, 2007.

Thesis (MA (English))-University of Pretoria, 2007. / Includes bibliographical references. Mode of access: World Wide Web.

Thesis (D.M.A.)--University of Illinois at Urbana-Champaign, 2008. / Includes abstract. Vita. Source: Dissertation Abstracts International, Volume: 69-05, Section: A, page: 1598. Adviser: Ian Hobson. Includes bibliographical references (leaves 176-181), discography (leaves 181-182), and webliography (leaves 182-183). Available on microfilm from Pro Quest Information and Learning.

Thesis (Ph. D.)--University of Pennsylvania, 1944. / eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (p. 216-219).

Thesis (Ph. D.)--University of Texas at Austin, 2003. / Vita. Includes bibliographical references. Available also from UMI Company.

Thesis (Ph. D.)--University of Pennsylvania, 1944. / eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (p. 216-219).

Thesis (Ph. D.)--University of Wisconsin--Madison, 1957. / Typescript. Abstracted in Dissertation abstracts, v. 17 (1957) no. 10, p. 2261. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 550-563).

Th. Ph. D.--Faculty of the college of arts and sciences--Washington--American University, 1970. / Bibliogr. p. 338-345.