For this kind of motion is determinated, it is feasible to be worked out uniquely in advance and design an optimal controller to suppress the load sway according to the quadratic optimal law.
由于这类运动是确定性的，可以事先唯一地求出，由此设计出一种最优控制器，按照二次型最优消摆规律消除载荷摆振。
The paper studied the relative error which appear because of abbreviation for the model of crane load sway, the relative error equations are obtained too.
研究了起重机载荷摆振模型在简化过程中所产生的相对误差，得到了相对误差公式。
The results indicate that the effects of posture and weight load on body sway are significant.
研究结果表明作业姿势和负重对人体动摇的主要指标都具有显著影响。
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