FR2205640A1 - - Google Patents
Info
- Publication number
- FR2205640A1 FR2205640A1 FR7339164A FR7339164A FR2205640A1 FR 2205640 A1 FR2205640 A1 FR 2205640A1 FR 7339164 A FR7339164 A FR 7339164A FR 7339164 A FR7339164 A FR 7339164A FR 2205640 A1 FR2205640 A1 FR 2205640A1
- Authority
- FR
- France
- 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.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
- F16F15/14—Suppression of vibrations in rotating systems by making use of members moving with the system using masses freely rotating with the system, i.e. uninvolved in transmitting driveline torque, e.g. rotative dynamic dampers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/001—Vibration damping devices
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S416/00—Fluid reaction surfaces, i.e. impellers
- Y10S416/50—Vibration damping features
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Vibration Prevention Devices (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Vibration Dampers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB5108872A GB1445686A (en) | 1972-11-06 | 1972-11-06 | Vibration absorbing systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2205640A1 true FR2205640A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1974-05-31 |
Family
ID=10458613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7339164A Withdrawn FR2205640A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1972-11-06 | 1973-11-05 |
Country Status (7)
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2530216A1 (fr) * | 1982-07-13 | 1984-01-20 | Messerschmitt Boelkow Blohm | Pendule pour l'amortissement ou la suppression des basses frequences d'excitation d'une pale de rotor d'helicoptere ou analogue |
| EP0147694A3 (de) * | 1983-12-10 | 1985-11-27 | Johann Klug | Schwungrad |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3988073A (en) * | 1975-04-11 | 1976-10-26 | United Technologies Corporation | Spherical bifilar tuning pin bushing |
| US3988074A (en) * | 1975-11-13 | 1976-10-26 | United Technologies Corporation | Anhedral bifilar |
| US4057363A (en) * | 1975-11-20 | 1977-11-08 | United Technologies Corporation | Extended arm bifilar and method to eliminate second order vibration excitation |
| US4239455A (en) * | 1978-09-11 | 1980-12-16 | Textron, Inc. | Blade-mounted centrifugal pendulum |
| NL1005000C2 (nl) * | 1997-01-14 | 1998-07-15 | Aerpac Special Products B V | Windturbine. |
| PT1101034E (pt) * | 1998-07-28 | 2005-08-31 | Neg Micon As | Pa de turbina eolica com um meio de amortecimento de oscilacoes em forma de u |
| US6493689B2 (en) * | 2000-12-29 | 2002-12-10 | General Dynamics Advanced Technology Systems, Inc. | Neural net controller for noise and vibration reduction |
| FR2894040B1 (fr) * | 2005-11-28 | 2011-10-21 | Eurocopter France | Dispositif d'asservissement pour un vibrateur a rotors desequilibres. |
| CN107148383B (zh) * | 2016-05-31 | 2019-03-08 | 深圳市大疆创新科技有限公司 | 无人飞行器的机架及无人飞行器 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2353681A (en) * | 1939-11-03 | 1944-07-18 | United Aircraft Corp | Propeller hub damper |
| US2349187A (en) * | 1941-03-08 | 1944-05-16 | Westinghouse Electric & Mfg Co | Vibration dampener |
| US2462961A (en) * | 1945-01-24 | 1949-03-01 | United Aircraft Corp | Propeller blade vibration absorber |
| US2462962A (en) * | 1945-09-26 | 1949-03-01 | United Aircraft Corp | Blade vibration absorber |
| US3540809A (en) * | 1968-09-20 | 1970-11-17 | United Aircraft Corp | Vibration damped helicopter rotor |
-
1972
- 1972-11-06 GB GB5108872A patent/GB1445686A/en not_active Expired
-
1973
- 1973-10-23 CA CA184,004A patent/CA972738A/en not_active Expired
- 1973-10-23 US US408748A patent/US3887296A/en not_active Expired - Lifetime
- 1973-11-02 IN IN2426/CAL/1973A patent/IN138438B/en unknown
- 1973-11-02 DE DE19732354973 patent/DE2354973A1/de active Pending
- 1973-11-02 IT IT53483/73A patent/IT996371B/it active
- 1973-11-05 FR FR7339164A patent/FR2205640A1/fr not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2530216A1 (fr) * | 1982-07-13 | 1984-01-20 | Messerschmitt Boelkow Blohm | Pendule pour l'amortissement ou la suppression des basses frequences d'excitation d'une pale de rotor d'helicoptere ou analogue |
| EP0147694A3 (de) * | 1983-12-10 | 1985-11-27 | Johann Klug | Schwungrad |
Also Published As
| Publication number | Publication date |
|---|---|
| IT996371B (it) | 1975-12-10 |
| DE2354973A1 (de) | 1974-07-18 |
| CA972738A (en) | 1975-08-12 |
| US3887296A (en) | 1975-06-03 |
| IN138438B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1976-01-31 |
| GB1445686A (en) | 1976-08-11 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |