Nonlinear dynamics response of deep-water production top tensioned riser under three different moving conditions is calculated using finite element analysis software.
通过实例对各条件下顶张式立管时域动态响应特性作了比较。
The basic theory and technical points of a new kind of lap gate(riser)adopted to produce iron castings of wheels are discussed and good economic results of this technology in production are also…
阐述了轮类铸铁件采用新颖的压边浇（冒）口铸造工艺的优化设计指导理论和技术要点，简评了压边浇（冒）口铸造工艺在轮类铸铁件上应用所获得的良好技术经济效果。
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