针对新设计的直升机起落架转向与对中机构的可靠性及稳定性难于准确确定的难题,研制一套能够模拟起落架转向与对中机构工作环境的试验装置进行耐久性试验验证是唯一的方法和手段。介绍了直升机起落架转向与对中机构耐久性试验装置的设计依据、结构原理、系统组成及其在直升机型号研制中的应用情况。 In view of the difficulty of accurately determining the reliability and stability of helicopter landing gear steering and centering mechanism of new design, it is the only way to develop a set of durability test equipment that can simulate the working environment of gear steering and centering mechanism And means. The design basis, structural principle, system composition and application of helicopter landing gear steering and centering mechanism in the development of helicopter model are introduced.