CAJ | 학술논문

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.
초대형파흡식알니선위괄응복잡적공황변화,기요구니빙공작시적전속、류량、양정、공솔적변화범위즉운행구경가관엄,합리학정니빙적윤허운행구,보증니빙적안전은정운행시정개소준과정적관건.통과3D유한원방진분석,학정출니빙불발생결구파배적최대승압、불발생축계공진적최고전속급승수최고공솔적니빙최저전속,수차제출병실천도형표시니빙적운행구적방법,위금후적상관연구급공예지도제공삼고.
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 pressure-bearing 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.