... 滚转力矩平衡 balance of rolling couples; equilibrium about rolling axis; rolling-moment equilibrium 力矩平衡条件 moment condition of equilibrium; moment equilibrium condition 偏航力矩平衡 equilibrium about yawing axis; yawing-moment equilibrium ...
Based on the equilibrium equation of annular plates, the limit loads of annular plates under ultimate condition of the maximal moment were calculated by singular function.