DE2833813C2 - Hubschrauber-Nabenfeder mit nichtlinearer Federkonstanten - Google Patents
Hubschrauber-Nabenfeder mit nichtlinearer FederkonstantenInfo
- Publication number
- DE2833813C2 DE2833813C2 DE2833813A DE2833813A DE2833813C2 DE 2833813 C2 DE2833813 C2 DE 2833813C2 DE 2833813 A DE2833813 A DE 2833813A DE 2833813 A DE2833813 A DE 2833813A DE 2833813 C2 DE2833813 C2 DE 2833813C2
- Authority
- DE
- Germany
- Prior art keywords
- spring
- hub
- impact
- main rotor
- mast
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 230000000452 restraining effect Effects 0.000 claims description 11
- 230000033001 locomotion Effects 0.000 claims description 10
- 239000002131 composite material Substances 0.000 claims description 8
- 238000013016 damping Methods 0.000 claims description 7
- 239000011324 bead Substances 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical group C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 4
- 229920001971 elastomer Polymers 0.000 description 3
- 239000000806 elastomer Substances 0.000 description 3
- 230000014759 maintenance of location Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000002301 combined effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/32—Rotors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/32—Rotors
- B64C27/35—Rotors having elastomeric joints
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Springs (AREA)
- Discharge By Other Means (AREA)
- Vibration Prevention Devices (AREA)
- Toys (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US82362477A | 1977-08-11 | 1977-08-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE2833813A1 DE2833813A1 (de) | 1979-02-22 |
| DE2833813C2 true DE2833813C2 (de) | 1987-01-02 |
Family
ID=25239266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2833813A Expired DE2833813C2 (de) | 1977-08-11 | 1978-08-02 | Hubschrauber-Nabenfeder mit nichtlinearer Federkonstanten |
Country Status (6)
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2497173A1 (fr) * | 1980-12-26 | 1982-07-02 | Aerospatiale | Butee lamifiee de forme courbe, notamment pour rotor d'helicoptere |
| EP2437979B1 (en) * | 2009-06-02 | 2016-10-26 | UMS Skeldar Sweden AB | Rotor damper and tail rotor with such a rotor damper |
| DE102015107596B3 (de) * | 2015-05-13 | 2016-10-20 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Hubschrauber mit Einrichtungen zum Vermeiden des Mast Bumping |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1111541A (fr) * | 1953-07-22 | 1956-03-01 | Doman Helicopters | Rotor à libre inclinaison pour engins aériens à autosustentation |
| US3804552A (en) * | 1972-07-05 | 1974-04-16 | Textron Inc | Four blade main rotor control power coupling |
| US3807896A (en) * | 1972-10-10 | 1974-04-30 | Textron Inc | Concentric tube spring rotor mount |
-
1978
- 1978-07-27 CA CA308,309A patent/CA1113912A/en not_active Expired
- 1978-08-02 DE DE2833813A patent/DE2833813C2/de not_active Expired
- 1978-08-09 IT IT50673/78A patent/IT1107202B/it active
- 1978-08-11 FR FR7823781A patent/FR2399945A1/fr active Granted
- 1978-08-11 JP JP9743778A patent/JPS5453497A/ja active Granted
- 1978-08-11 GB GB7833011A patent/GB2002308B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| IT7850673A0 (it) | 1978-08-09 |
| FR2399945B1 (US07122547-20061017-C00273.png) | 1983-02-18 |
| GB2002308A (en) | 1979-02-21 |
| IT1107202B (it) | 1985-11-25 |
| FR2399945A1 (fr) | 1979-03-09 |
| DE2833813A1 (de) | 1979-02-22 |
| GB2002308B (en) | 1982-01-06 |
| JPS6239B2 (US07122547-20061017-C00273.png) | 1987-01-06 |
| JPS5453497A (en) | 1979-04-26 |
| CA1113912A (en) | 1981-12-08 |
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| DE2833747C2 (US07122547-20061017-C00273.png) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8110 | Request for examination paragraph 44 | ||
| D2 | Grant after examination | ||
| 8364 | No opposition during term of opposition | ||
| 8328 | Change in the person/name/address of the agent |
Free format text: STOLBERG-WERNIGERODE, GRAF ZU, U., DIPL.-CHEM. DR.RER.NAT. SUCHANTKE, J., DIPL.-ING., PAT.-ANWAELTE, 2000 HAMBURG |
|
| 8339 | Ceased/non-payment of the annual fee |