1. CAAC: Airworthiness Standards-Transport Category airplanes, CCAR-25, pp. 67–68 (2011) (in Chinese)
2. Long, J., Zhang, D.: Research on motion process reliability of landing gearduring emergency extending. J. Mech. Strength 27(5), 624–627 (2005) (in Chinese)
3. Jinbiao, Z., Xiangwei, Z., Yunwen, F.: Reliability analysis of landing gear mechanism during emergency extending. Mach. Design Manuf. 8, 31–32 (2014). (in Chinese)
4. American Society for Testing Materials: Standard Test Method for Coefficient of Static Friction of Uncoated Writing and Printing Paper by Use of the Inclined Plane Method, ASTM D4918-97 (2002)
5. Zhen, H.: Test method for coefficient of static friction by use of the inclined plane method accurately. Modern Manuf. Technol. Equip. 3, 73–74 (2009). (in Chinese)