Abstract: A modular fluid pump includes a stator having a plurality of stator teeth and windings that are positioned on the stator teeth. A rotor has a central shaft and substantially hemispheric ends and a plurality of magnets that define an electromagnetic communication with the windings A housing surrounds the stator and includes a fixed end cap that receives one of the hemispheric ends of the central shaft and defines a rotational axis of the rotor. A securing end cap that receives the other hemispheric end of the central shaft. The central shaft and the fixed and securing end caps define the rotational axis of the rotor. Engagement of the hemispheric end with the central shaft and the fixed and securing end caps maintains the rotor and the central shaft aligned with the rotational axis and balanced within the stator.

Abstract: An integrated multidirectional loading model test device for offshore wind turbines, including a water flume, a wave-making mechanism at first end of water flume, a top hood at top of water flume to form air duct, a first end of the top hood as air inlet end and a fan at second end of top hood, a seabed soil holding sink at a set position at bottom of water flume, a rotating disk at bottom of interior of seabed soil holding sink, a model barrel for placing seabed soil and the offshore wind turbine model is fixed on the rotating disk, and the rotating disk is connected to a driving mechanism to drive model barrel to rotate, so that a relative motion between the model barrel and the fixed water flume can be generated to achieve the wind and wave loads in different directions on the offshore wind turbine model.