摘要
超大型耙吸式挖泥船为适应复杂的工况变化,其要求泥泵工作时的转速、流量、扬程、功率的变化范围即运行区更加宽广,合理确定泥泵的允许运行区,保证泥泵的安全稳定运行是整个疏浚过程的关键。通过3D有限元仿真分析,确定出泥泵不发生结构破坏的最大承压、不发生轴系共振的最高转速及承受最高功率的泥泵最低转速,首次提出并实践图形表示泥泵的运行区的方法,为今后的相关研究及工艺指导提供参考。
In order to adapt to changes of complex working conditions, wider changing range or operating boundary of pump in jumbo trailing suction hopper dredger is required in the aspect of rotating speed, flow rate, discharge distance and power. Therefore, the determination of rational pump operating boundary to guarantee the safe and stable operation is the key factor of entire dredging process. Through the 3D finite element simulation analysis, the pressurebearing criterion that the structure is not destroyed, the rotating speed upper limit that the risk of resonant vibration of shafting do not happen, the rotating speed lower limit that the torque is allowed. The methodology of visualized graphics which shows the pump operational zone is put forward and put into practice for the first time. It provides references for future researches and process instructions.
出处
《中国港湾建设》
2013年第2期71-74,共4页
China Harbour Engineering
关键词
超大型耙吸式挖泥船
泥泵
承压
轴系
3D有限元
jumbo trailing suction hopper dredger
pump
pressure-bearing
shafting
3D finite element.
