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Aircraft

A technology of aircraft and cantilever, which is applied in the field of aircraft to achieve the effect of avoiding early fatigue

Pending Publication Date: 2021-10-12
DR ING H C F PORSCHE AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Especially if the aircraft has arms (arms) to which the drive unit (eg an engine with a propeller) is fastened, the targeted adjustment of the dynamic vibration behavior presents a great challenge for the developer

Method used

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Examples

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Embodiment Construction

[0065] figure 1 The structural features of a preferred embodiment of the aircraft ( 10 ) according to the invention are shown. Two cantilever arms (11) are screwed to the nose, which protrude from the fuselage in opposite directions parallel to the pitch axis and each carry a helicopter rotor (14).

[0066] like figure 2 It can be seen that in the present exemplary embodiment the cantilever ( 11 ) made of sheet metal has a stamped out ( 12 ) on the underside. It is understood that, in alternative embodiments, grooves or other depressions ( 12 ) may instead be provided, for example, without departing from the scope of the present invention.

[0067] image 3 A closed hollow section of the thin-walled cantilever (11) is shown. By introducing stampings (12) on the underside the torsional frequency can be adjusted without significantly affecting the deflection modes about the X and Z axes. For mutual differences between 10 to 15 Hz (deflection about the Z axis), 25 to 30 Hz ...

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PUM

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Abstract

The invention provides an aircraft (10) having the following features that: the aircraft (10) comprises a fuselage having a cantilever (11) carrying a helicopter rotor (14) and having a recess.

Description

technical field [0001] The present invention relates to an aircraft, especially an all-electric aircraft capable of vertical take-off and landing (vertical take-off and landing, VTOL). Background technique [0002] VTOL in aerospace technology refers interlingually to any type of aircraft, drone or rocket that is capable of rising and re-landing substantially vertically and without a runway for takeoff and landing. This general term is used hereinafter broadly to include not only fixed-wing aircraft with wings, but also rotary-wing aircraft (such as helicopter rotorcraft, autogyro, propeller rotorcraft) and hybrid aircraft (such as compound helicopters). rotorcraft or combined rotorcraft) and vertical lift aircraft. In addition, it also includes the ability to take off and land in a particularly short distance (short take-off and landing, STOL), take off and land vertically in a short distance (short take-off and vertical landing, STOVL), or take off and land vertically An...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64C3/32B64C29/00B64C27/00B64D27/40
CPCB64C3/32B64C29/00B64C27/00B64C29/0025B64D27/24Y02T50/60Y02T50/50B64D27/402B64D27/40
Inventor M·霍夫梅斯特
Owner DR ING H C F PORSCHE AG
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