针对门机大梁以上特点，对梁体模板设计、混凝土浇筑振捣、梁体张拉施工技术难点进行了深入研究。
As to the above characteristics of the gantry crane, the further study has been made for formwork design, concreting and vibrating and girder in tension.
本文的系统仿真与实验结果验证了以上方法能达到较好的控制效果，本文的设计对风机、绕线机、振捣棒的速度控制具有一定的实用价值。
The simulator and experiment proved that the methods above have better control results. This thesis has certain application value in controlling speed of ventilator and coiling machine.
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