Sökning: "Rizzi"

Visar resultat 1 - 5 av 19 avhandlingar innehållade ordet Rizzi.

1. 1. Health Losses in Motorcycle Crashes - Injury Analysis of Crashes into Road Barriers and Evaluation of Antilock Braking Systems

   Författare :Matteo Rizzi; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Antilock Braking Systems; Powered Two Wheelers; Safety; Injury; Stability; Road Barrier; Health Loss; Crash; Motorcycle;

   Sammanfattning : Motorcycles crashes are a growing road safety problem. While the traditional safety approach has focused on protective gear and rider education, with the Vision Zero approach, the designers of the road transport system are considered responsible for its design and operation. LÄS MER

3. 2. Towards a Safe System Approach to Prevent Health Loss among Motorcyclists

   Författare :Matteo Rizzi; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Stability; ABS; Safe System; Motorcycle; Powered Two Wheelers; Antilock Brakes;

   Sammanfattning : Health loss among motorcyclists is a global road safety problem for which innovative countermeasures are needed. While the traditional motorcycle safety approach has focused on protective gear and rider education, the Safe System approach adopted in Sweden and other countries implies that the road, the vehicle and the road user, in conjunction with a safe speed limit, should interact to create a safe road transport system. LÄS MER

4. 3. Method Development for Computer Aided Engineering for Aircraft Conceptual Design

   Författare :Adrien Bérard; Arthur Rizzi; Dieter Scholz; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Aircraft conceptual design; Computer Aided Design CAD ; buffet onset; unsteady vortex-lattice method; Vehicle engineering; Farkostteknik;

   Sammanfattning : This thesis presents the work done to implement new computational tools and methods dedicated to aircraft conceptual design sizing and optimization. These tools have been exercised on different aircraft concepts in order to validate them and assess their relevance and applicability to practical cases. LÄS MER

5. 4. Accurate physical and numerical modeling of complex vortex phenomena over delta wings

   Författare :Simone Crippa; Arthur Rizzi; Stefan Wallin; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; computational fluid dynamics; CFD; vortical flow; delta wing; aerodynamics; flow physics; steady; unsteady; Vehicle engineering; Farkostteknik;

   Sammanfattning : With this contribution to the AVT-113/VFE-2 task group it was possible to prove the feasibility of high Reynolds number CFD computations to resolve and thus better understand the peculiar dual vortex system encountered on the VFE-2 blunt leading edge delta wing. Initial investigations into this phenomenon seemed to undermine the hypothesis, that the formation of the inner vortex system relies on the laminar state of the boundary layer at separation onset. LÄS MER

7. 5. Advances in vortical flow prediction methods for design of delta-winged aircraft

   Författare :Simone Crippa; Arthur Rizzi; James Luckring; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; delta wing; slender wing; aircraft; vortex; VFE-2; CAWAPI; HISAC; Vehicle engineering; Farkostteknik;

   Sammanfattning : This thesis covers the field of vortex-flow dominated external aerodynamics. As part of the contribution to the AVT-113 task group it was possible to prove the feasibility of high Reynolds number CFD computations to resolve and thus better understand the peculiar dual vortex system encountered on the VFE-2 blunt leading edge delta wing at low to moderate incidences. LÄS MER