Piezoelectric ceramic actuator steering engine servo mechanism and steering engine servo method

A technology of piezoelectric actuators and piezoelectric ceramics, applied in the direction of generators/motors, piezoelectric effect/electrostrictive or magnetostrictive motors, electrical components, etc., can solve the problem of inability to realize aeroelastic servo control and response Frequency reduction and other issues, to achieve the effect of increasing control frequency, high response speed, and good application prospects

Active Publication Date: 2017-07-25
BEIHANG UNIV
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Problems solved by technology

However, high-speed flight will increase the load on the rudder surface. If it exceeds the working range of the traditional steering gear, the response frequency will be greatly reduced, and reasonable aeroelastic servo control cannot be achieved.

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  • Piezoelectric ceramic actuator steering engine servo mechanism and steering engine servo method
  • Piezoelectric ceramic actuator steering engine servo mechanism and steering engine servo method
  • Piezoelectric ceramic actuator steering engine servo mechanism and steering engine servo method

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Embodiment Construction

[0018] Aiming at the problem that the steering gear on the unmanned aerial vehicle in the prior art is difficult to achieve reasonable aeroelastic servo control, the inventor has conducted research; the inventor considers that piezoelectric ceramics are a function that can convert mechanical energy and electrical energy into each other Ceramic material. Piezoelectric ceramic materials have stable chemical properties and are not affected by moisture and other atmospheric conditions. Piezoelectric ceramics can be made into any shape and size, and the polarization direction can be freely selected, which has strong adaptability. Because the material is very hard, it has a great load-bearing capacity. Piezoelectric ceramics have been widely used in high-precision optoelectronic instruments, micro-robots and other fields, and their control accuracy reaches the nanometer level.

[0019] On the basis of considering the actuating frequency and output characteristics of the piezoelectr...

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Abstract

The invention provides a piezoelectric ceramic actuator steering engine servo mechanism and a steering engine servo method and solves problems of a limited response speed of a traditional motor steering engine and obvious response frequency reduction especially under the load condition. A piezoelectric ceramic actuator is employed to drive a steering engine to work, the response speed is greatly improved, aeroelastic control under high frequency response can be satisfied, a new solution scheme is provided for flutter suppression of steering engine servo, and the piezoelectric ceramic actuator steering engine servo mechanism has great application prospects.

Description

technical field [0001] This design involves a piezoelectric ceramic actuator steering gear servo mechanism and steering gear servo method. Background technique [0002] At present, the steering gear that is widely used in unmanned aerial vehicles, its response frequency is difficult to meet the stability control requirements of the aircraft under a large response range. Traditional UAV servos are driven by motors, and their response frequency is positively correlated with voltage and negatively correlated with load. When flying at high speed, the wings of the aircraft are prone to adverse aeroelastic phenomena, such as flutter. The solution is to use the rudder surface to suppress flutter. However, high-speed flight will increase the load on the rudder surface. If it exceeds the working range of the traditional steering gear, the response frequency will be greatly reduced, making it impossible to achieve reasonable aeroelastic servo control. Contents of the invention [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02N2/06B64C13/50
CPCB64C13/50H02N2/06
Inventor 谢长川安朝吴越李维浩
Owner BEIHANG UNIV
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