The piston pump is the key power component in the civil aircraft hydraulic system,and the most common pump used in the aviation field is the pressure compensated variable displacement type.In this review paper,a basic...The piston pump is the key power component in the civil aircraft hydraulic system,and the most common pump used in the aviation field is the pressure compensated variable displacement type.In this review paper,a basic introduction to the civil aircraft piston pump is presented,including the classification,structure,working principle,design features,and achievements by some research groups.Then,the future directions of the aircraft pump are reported from various perspectives.Further,the critical technologies are analyzed and summarized in detail from six thrust areas:friction couples,noise reduction,inlet boost,thermal management,fault diagnosis and health management,and mechanical seal.Finally,the challenges and limitations of the research on the aircraft pump are discussed to provide valuable insight for future scholars.展开更多
针对传统基于文本的系统工程方法中存在设计文档变更难度大、工程模型可读性差、模型复用性不强等问题,提出了基于美国国防部体系架构(department of defense architecture framework, DoDAF)的基于模型的系统工程(model-based systems ...针对传统基于文本的系统工程方法中存在设计文档变更难度大、工程模型可读性差、模型复用性不强等问题,提出了基于美国国防部体系架构(department of defense architecture framework, DoDAF)的基于模型的系统工程(model-based systems engineering, MBSE)建模方法,从两个维度共计10个模块,对设计建模过程进行了划分,结合DoDAF的多视图对复杂系统进行全面立体的描述,形成了一套逻辑性强、建模完备的MBSE建模方法。以民用飞机高度控制系统为例进行建模,使用系统建模语言SysML(systems modeling language)描述在不同的DoDAF视图下的模型并对该系统进行建模分析,验证了本建模方法能够很好地契合复杂系统设计要求,适合民机系统的研制。展开更多
基金financially supported by the National Natural Science Foundation of China(No.51775013)the Aeronautical Science Foundation of China(No.2016ZC09007).
文摘The piston pump is the key power component in the civil aircraft hydraulic system,and the most common pump used in the aviation field is the pressure compensated variable displacement type.In this review paper,a basic introduction to the civil aircraft piston pump is presented,including the classification,structure,working principle,design features,and achievements by some research groups.Then,the future directions of the aircraft pump are reported from various perspectives.Further,the critical technologies are analyzed and summarized in detail from six thrust areas:friction couples,noise reduction,inlet boost,thermal management,fault diagnosis and health management,and mechanical seal.Finally,the challenges and limitations of the research on the aircraft pump are discussed to provide valuable insight for future scholars.
