Sökning: "Yi Zhu"

Hittade 2 avhandlingar innehållade orden Yi Zhu.

1. 1. Adhesion in the wheel-rail contact

   Författare :Yi Zhu; Ulf Olofsson; Anders Söderberg; Zili Li; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Adhesion; wheel-rail contact; contaminants; tribology; Järnvägsgruppen - Tribologi; The KTH Railway Group - Tribology;

   Sammanfattning : To attract more customers and compete with other modes of transportation, railway transport needs to ensure safety, punctuality, high comfort, and low cost; wheel–rail adhesion, i.e., the transmitted tangential force in the longitudinal direction during driving and braking, plays an important role in all these aspects. LÄS MER

3. 2. Adhesion in the wheel-rail contact under contaminated conditions

   Författare :Yi Zhu; Ulf Olofsson; Ines Lopez Arteaga; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; adhesion; wheel-rail contact; contaminants; rough surfaces;

   Sammanfattning : Railway vehicles require a certain level of adhesion between wheel and rail to operate efficiently, reliably, and economically. Different levels of adhesion are needed depending on the vehicle running conditions. LÄS MER