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This paper presents a pump motor modeling and optimization method based on electromagnetic calculation and BP neural network. This method, according to the structure parameters of three-phase asynchronous motor in drainage pump, through the motor electromagnetic calculation, calculates the motor performance. It establishes a BP neural network model to fitting flow and water head for hydraulic performance...
Introduced the generation background of Ω mechanical seal and the development of it, in combination with surface ships and ships based on the Propeller shaft Ω carried out related to mechanical seal design and research, Investigated the calculation method of the mechanical seal leakage. Finally, discussed the advantages and disadvantages of the sealing device, and predicted the future applications...
The dissertation has researched the structure of eccentric shaft from the power end of the radial reciprocating piston pump, and has analyzed the unbalanced inertia force generated in the process of high-speed rotary motion. It has pointed out the requirement of dynamic balance design of the eccentric shaft, and has completed the dynamic balance design of the eccentric shaft. The ADAMS was used to...
From the angle of mechanical design, this paper studies on the method of capacity increase for the main lifting system of the large scale casting crane, puts forward a specific solution. Furthermore, introduces the methods of finite element analysis and fatigue life prediction for the key components, and the method to evaluate the functional performance of the equipment according to the analysis results.
This paper describes the work principle, structure and drive system design methods for a four degrees of freedom manipulator with strong load capacity, light weight and high rotary accuracy, and carries out a finite element analysis on the key parts of the arm by the software of ANSYS. The simulation results shows that the performances of all the designed parts can meet the design requirements.
Despite of many works being conducted on spherical robots in recent years, there are few practical applications. Existing spherical robots still have many drawbacks, such as weak capability of environmental perception and low precision of motion control. This paper presents a spherical robot carrying a binocular stereovision, referred to as Visionbot. The robot aims to use stereovision to enhance...
The wind pendulum is a highly nonlinear hysteretic system, the research of which is rarely mentioned. In this paper, the mathematical model of a wind pendulum was developed by using Euler-Lagrange equation. In any direction on a sphere, the mechanical characters of swing control and anti-swing control were modeled and analyzed. Then a simple method was proposed to achieve specific swinging or anti-swinging...
Shaft parts are widely used in machinery industry, however, bending deformation often occurred when this kind of parts is being heat treated. This parts needs to be straightened in order to meet the requirement of straightness. As for the pressure straightening process, A good straightening stroke algorithm is related to the precision and efficiency of straightening process. In this paper, the relationship...
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