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Applicability of bridge-type pneumatic energy-saving systems and its experimental validation

机译：桥式气动节能系统的适用性及其实验验证

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摘要

The bridge-type pneumatic system is to control the intake and exhaust time sequences of an air cylinder with four switch valves by applying the expansion energy of air for work to save energy. However, the system is often sensitive, and thus, the control accuracy can be rather poor. Therefore, the applicability of this system remains to be further tested. A nonlinear dynamic optimization model with the air consumption as the objective function was established. A simultaneous collocation method was used to obtain the on–off time sequences. The concept of optimization performance rating to evaluate the system's energy-saving performance and the stability was introduced. Experiments were done to validate the applicability of the circuit. The results showed that the bridge circuit was applicable to a certain range of working conditions under each given action system and that instability, such as rebound or impact, could occur outside this range.
机译：桥式气动系统通过施加空气的膨胀能量进行工作以节省能量，从而通过四个开关阀控制气缸的进气和排气时间顺序。但是，该系统通常很敏感，因此控制精度可能会很差。因此，该系统的适用性还有待进一步测试。建立了以耗气量为目标函数的非线性动态优化模型。使用同时配置方法来获得开-关时间序列。引入了优化性能等级的概念，以评估系统的节能性能和稳定性。进行了实验以验证电路的适用性。结果表明，在每个给定的动作系统下，电桥电路都适用于一定范围的工作条件，在此范围之外可能会出现诸如回弹或冲击之类的不稳定性。

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