影响液压系统冲击、振动的因素很多，如泵的结构、阀的参数及负载情况和整个系统管路设计的合理性、工作条件等。
There are many factors that influence impact and vibration in hydraulic systems, such as pump structure, valve parameters, load, pipe design and operation conditions.
最后通过实验验证电路在空载和负载情况下的性能，实验证明设计的电路和程序达到预期的设想。
Finally we tests the performance by experiment in idling and load situation, which proves that electric circuit and the program achieves the anticipated plan.
本文针对这种情况，设计了一种能够处理时变延迟的状态观测器，并根据网络负载的不同变化情况，提出了两种不同的控制策略。
In this case, a kind of status observer dealing with the time variant delay is designed, and two control strategies are investigated in terms of the network load.
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