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Aiming at the variable damping requirement of solar array vibration control, a hybrid-type rotary Magnetorheological(MR) damper was designed and tested. Based on the Bingham model, the torque of this hybrid-type mode was derived. Then, the method of finite element analysis was used for optimizing the damper structure. Finally, the design process of the rotary MR damper mechanical structure was presented...
The research of welding parameters, such as surface absorption rate, laser power, welding speed on laser welding process, weld depth and weld width are discussed by means of finite element simulation. In the article, it takes 5A06 aluminum alloy welding as the example to build the finite element model. Finite element model can forecast the weld shape under different welding parameters, and can realize...
Nowadays , the main problems of the expert system are as follows: The illation is simple, the knowledge base cannot change dynamically, the capacity of the on-site handling is weak, and cannot make the most of the network to realize the Remote Network Services, and so on. We design a new kind of expert system based on the GSM, it can realize the dynamical change knowledge base of expert system and...
Tension control system is a key technologe for fruit bag machine, because it impacts quality the fruit bags. Because of high productivity and high-speed paper driving, in odrder to prevent the paper from wrinkling, drifting, deviator and to keep the neat of the paper, the control method that based on fuzzy parameters adaptive PID is presented for the fruit bag machine. The simulating results of ordinary...
According to the running condition of local power network at present, system of setting calculation and simulation of relaying protection is developed for power system based on graphic modeling. It makes use of graphical software to complete data and process management, fault analysis of power network, setting and simulation of fixed value. By building all kinds of calculation models of running method,...
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