The aim of the study is to investigate performance a thrust bearing equipped with hydrostatic lift pockets under different lubrication modes. Three types flat land modes are studied experimentally: (HS; forced oil injection pockets), hybrid (HS + HD; combined external supply) and hydrodynamic (HD; acting alone). Tests performed for steady transient states operation. obtained results confirmed t...

To reduce the transmission of shafting longitudinal vibration in surface ships, a design thrust bearing integrated with internal disc springs is proposed and characteristics are studied. According to structural deformation springs, specific size combination forms designed, effective schemes achieved according static dynamic requirements. With integration into bearing, peak displacement response...

The characteristics of carbon fibre reinforced plastics allow a very broad range of uses. Drilling is often necessary to assemble different components, but this can lead to various forms of damage, such as delamination which is the most severe. However, a reduced thrust force can decrease the risk of delamination. In this work, two variables of the drilling process were compared: tool material ...

Accurate modeling of heat dissipation in pediatric intracorporeal devices is crucial in avoiding tissue and blood thermotrauma. Thermal models of new Maglev ventricular assist device (VAD) concepts for the PediaFlow VAD are developed by incorporating empirical heat transfer equations with thermal finite element analysis (FEA). The models assume three main sources of waste heat generation: coppe...

Abstract: This paper proposes a five-degree-of-freedom (5-DOF) hybrid magnetic bearing (HMB) for direct-drive wind turbines, which can realize suspension in the 4-DOF radial and 1-DOF axial directions. Only two sets of radial control windings are employed in the proposed HMB because only one set of radial control windings can achieve the 2-DOF suspension in the radial direction. Unlike the trad...