US 11,953,072 B2
Method for damping torsional vibrations in a drive train, and drive train
Daniel Wolf, Friedrichshafen (DE); Jörg Litzba, Fuldatal (DE); Johannes Schäfer, Friedrichshafen (DE); and Georg Tenckhoff, Friedrichshafen (DE)
Assigned to AIRBUS HELICOPTERS TECHNIK GMBH, Calden (DE)
Appl. No. 17/053,542
Filed by AIRBUS HELICOPTERS TECHNIK GMBH, Calden (DE)
PCT Filed May 3, 2019, PCT No. PCT/EP2019/061325
§ 371(c)(1), (2) Date Nov. 6, 2020,
PCT Pub. No. WO2019/215018, PCT Pub. Date Nov. 14, 2019.
Claims priority of application No. 102018207140.3 (DE), filed on May 8, 2018.
Prior Publication US 2021/0277975 A1, Sep. 9, 2021
Int. Cl. F16F 15/00 (2006.01); B64D 31/00 (2006.01); F16F 15/10 (2006.01)
CPC F16F 15/002 (2013.01) [B64D 31/00 (2013.01); F16F 15/10 (2013.01); F16D 2300/22 (2013.01); F16F 2228/066 (2013.01); F16F 2232/02 (2013.01); F16F 2236/08 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A method for damping torsional vibrations in a drive train of an aircraft, the method comprising:
determining a torsional moment acting on a torque-conducting component of the drive train using at least one sensor integrated in a drive train component;
adjusting at least one adjustable damping element located in or on the torque-conducting component of the drive train based on the torsional moment; and
regulating a torsional stiffness of the torque-conducting component to reduce the torsional load in the component.