方形结构网箱单箱体型锚泊系统的优化研究

以方形结构网箱的单箱体型锚泊系统为研究对象,通过力学分析和程序计算得出锚绳张力以及不同来流角度下的阻力系数之和(SRC)两项安全性能指标。结果表明,在理论的最危险受力情况下,单锚绳系统中锚绳张力的最大值为网箱阻力R,在双锚绳系统中则小于R。当双锚绳系统的锚绳安装角度β设置在最佳值22.5°时,SRC获得最小值34.65,该值相比β=1°时的SRC(39.59)下降了约12.5%,相比单锚绳系统的SRC(41.36)则降低了16.2%。

Optimization of the single-cage mooring system for square net cage

Tension of anchor ropes and the sum of resistance coefficient(SRC) under various current directions,which were indicators for measuring the security of mooring systems,were achieved through mechanics analysis and program operations when the single-cage mooring system of square net cage was used as the research object.The results showed that under the given dangerous situation the maximum tension of single-rope mooring system was equal to the cage resistance R while the one of double-rope system was less than R.The minimum SRC of double-rope mooring system was 34.65 when 22.5° was set as the optimal deploying angle.This SRC decreased by 12.5% as compared with that of β=1°(39.59) and decreased by 16.2% as compared with that of single-rope mooring system(41.36).