Abstract: This paper develops a comprehensive methodology to address the attitude control problem of hypersonic vehicles in the presence of matched model uncertainties and external disturbances. Initially, a nonlinear dynamic model ...

Abstract: In order to investigate the vacuum tribological properties of a Ti46Al2Cr2Nb alloy, drysliding tribological tests of the alloy against AISI 52,100 steel ball under different sliding speeds and loads were performed at a ...

Abstract: The influence of the grease-water two-phase emulsion on the bearing tracks on the film formation has been studied by carrying out optical interferometry experiments on a ball disk test rig to observe the dynamic film-forming ...