US 12,391,406 B2
Cam type airplane cabin door load simulation device and simulation method
Hao Wu, Beijing (CN); Xiaolu Wang, Beijing (CN); Zhenjin Nie, Beijing (CN); Shuai Liu, Beijing (CN); Zhe Pan, Beijing (CN); Danyang Wang, Beijing (CN); Guangran Niu, Beijing (CN); and Lin Li, Beijing (CN)
Assigned to Beijing Institute of Precision Mechatronics and Controls, Beijing (CN)
Appl. No. 18/037,844
Filed by BEIJING INSTITUTE OF PRECISION MECHATRONICS AND CONTROLS, Beijing (CN)
PCT Filed Sep. 30, 2021, PCT No. PCT/CN2021/122010
§ 371(c)(1), (2) Date May 19, 2023,
PCT Pub. No. WO2023/035342, PCT Pub. Date Mar. 16, 2023.
Claims priority of application No. 202111070247.7 (CN), filed on Sep. 13, 2021.
Prior Publication US 2023/0406542 A1, Dec. 21, 2023
Int. Cl. B64F 5/60 (2017.01); B64C 1/14 (2006.01)
CPC B64F 5/60 (2017.01) [B64C 1/1423 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A cam-type load simulator for aircraft cabin door, comprising: n cam sets, an input shaft, 3n couplings and a friction disk; the n cam sets and the friction disk are connected in series through the input shaft; the 3n couplings are arranged in the input shaft; wherein each cam set comprises a gravity cam simulator, an inertia cam simulator and a wind load cam simulator; in each cam set, the gravity cam simulator, the inertia cam simulator and the wind load cam simulator are sequentially connected in series through the input shaft, and one coupling is provided between the gravity cam simulator and the inertia cam simulator, one coupling is provided between the inertia cam simulator and the wind load cam simulator, the n cam sets share 2n couplings; one coupling is provided between any two adjacent cam sets, and couplings are provided between the cam sets; wherein the friction disk is connected to the tail ends of the n cam sets connected in series through one coupling.