A new type of hydro-viscous drive (HVD) winch was designed by combining with differential gear train and HVD. It could meet the requirements of inclined hoist. In order to achieve good control properties, though dynamic modeling and simulation, the output moment curves of HVD device were obtained, then, the working processes of starting, braking and lowering weight were analyzed. Research results provide a theoretical basis for making control strategies for HVD winch. Finally, the starting process of HVD winch was studied in the experimental device; the result indicated that the starting curve of HVD winch efficiently in accordance with Harrison curve.

Universal-rod steel-shuttering jumbo (URSSJ), as a key construction equipment for tailrace tunnel lining of underground plant in Pubugou hydropower station, has a good reusability in structure but must satisfy the requirements of intensity, rigidity and supporting stability. Due to complicated working conditions of the URSSJ, it is difficult to calculate stress and strain of the URSSJ based on traditional design method. In this paper, finite element technology is introduced into the analysis of the URSSJ. The approach of this work includes steps of (1) analyzing the structure, working conditions and load characteristics of the URSSJ, (2) modeling the hinge system by meshing, loading and boundary constraints, and (3) computing stress and strain of its major components under the most dangerous condition. The results verify design feasibility and structural reliability of the URSSJ.

Establish simulation model based on BP neural network PID control to solve the issue of hydro-viscous drive speed regulating start control strategies, experimental verifications prove its adaptability through AMESim/MATLAB co-simulation, research shows that: BP neural network PID control for hydro-viscous drive has a good self-correcting effect, the output speed adjusts towards the opposite direction according to the error and the error rate, while maintaining the smoothness of the output curve, thereby it can avoid over-large mechanical shocks, it indicates the BP neural network PID control is suitable for speed regulating start.

To obtain the influence law of laying combination and lay pitch multiple on mechanical strength of steel wire product, we took 6×19IWS right lang lay and right regular lay wire ropes as examples, combining with the strength theory, nonlinear finite element analysis were carried out with ANSYS software. The simulation results show the mechanical strength of the lang lay wire rope is better than that of the regular lay at the same lay pitch multiple; the lay pitch multiple of rope has a great impact on mechanical strength of steel wire product, however, the impact trend is similar among difference laying combinations, meanwhile the effect of the lay pitch multiple of strand is relatively small. Finally, finite element model for wire rope was verified reasonable through tensile experiment. Research results have important applications value for structural design and rational use of wire rope.

The flywheel battery can replace the chemical battery of aircraft energy system completely or partly,and can improve the supply ability,service life and reliability of vehicle energy system.The flywheel battery charging/ discharging control model circuit in the d-and q-axes has been established through the analysis of the permanent magnet synchronous motor and the PWM converter mathematical model and the use of the gyrator principle. And the control strategy of the flywheel battery charging/ discharging magnetic field oriented vector has been studied based on the model.The simulation and experimental results show that the control performance of the flywheel battery using the control strategy is good,and can meet the requirements of the aircraft energy system.