气浮式低摩擦气缸的换向特性
发布时间：2018-11-18 09:53
【摘要】：为了研究气浮式低摩擦气缸在换向过程气浮轴承的工作状态,根据固定容腔的充放气理论并结合气浮轴承的泄漏模型对气缸的换向过程进行了建模.通过理论分析,提出以换向时间和压力损耗作为换向过程的特征量,并通过仿真研究了气缸的换向特性.结果表明,在单向阀的作用下活塞内腔在换向时具有保压作用,换向时间越短活塞内腔压力损耗越小.为进一步研究影响换向特性的其他因素,建立了可调容腔的换向测试试验台.实验结果证实了仿真所得出的结论,同时也表明这种带有单向阀的气浮轴承的设计能够实现平稳换向,不同容腔下的实验数据还能为确定气缸在应用场合中的最佳换向时机提供指导.
[Abstract]:In order to study the working state of the air bearing with low friction in the commutative process, the reversing process of the cylinder was modeled according to the filling and discharging theory of the fixed cavity and the leakage model of the air bearing. Based on the theoretical analysis, the commutation time and pressure loss are proposed as the characteristic variables of the commutation process, and the reversing characteristics of the cylinder are studied by simulation. The results show that under the action of unidirectional valve, the inner cavity of the piston has the function of keeping pressure at the time of reversing, and the pressure loss of the cavity of the piston is smaller with the shorter the time of reversing. In order to further study the other factors affecting the commutation characteristics, a test bench for reversing test of adjustable capacitors was established. The experimental results confirm the conclusion of the simulation, and also show that the design of this kind of air bearing with one way valve can realize smooth commutation. The experimental data under different cavities can also provide guidance for determining the optimal timing of cylinder commutation in application.
【作者单位】： 浙江大学流体动力与机电系统国家重点实验室;
【基金】：国家自然科学基金资助项目(51375430,51375432)
【分类号】：TH138.51
，
本文编号：2339716
[Abstract]:In order to study the working state of the air bearing with low friction in the commutative process, the reversing process of the cylinder was modeled according to the filling and discharging theory of the fixed cavity and the leakage model of the air bearing. Based on the theoretical analysis, the commutation time and pressure loss are proposed as the characteristic variables of the commutation process, and the reversing characteristics of the cylinder are studied by simulation. The results show that under the action of unidirectional valve, the inner cavity of the piston has the function of keeping pressure at the time of reversing, and the pressure loss of the cavity of the piston is smaller with the shorter the time of reversing. In order to further study the other factors affecting the commutation characteristics, a test bench for reversing test of adjustable capacitors was established. The experimental results confirm the conclusion of the simulation, and also show that the design of this kind of air bearing with one way valve can realize smooth commutation. The experimental data under different cavities can also provide guidance for determining the optimal timing of cylinder commutation in application.
【作者单位】： 浙江大学流体动力与机电系统国家重点实验室;
【基金】：国家自然科学基金资助项目(51375430,51375432)
【分类号】：TH138.51
，
本文编号：2339716
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