A Design Method for Active Vibration Control of Propeller and Transmission Shaft System
A technology of active vibration control and design method, applied in the direction of adaptive control, general control system, control/regulation system, etc., can solve problems such as difficulty in system implementation, unreliable embedded blade sensing and actuation methods, etc., and achieve design The general effect of the method
Active Publication Date: 2021-09-21
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology
However, this method needs to convert the sensing and execution signals of the rotating system, and the system implementation is very difficult; at the same time, the sensing and actuation method embedded in the blade is currently unreliable and has only been verified in a laboratory environment. There is no relevant report on industrial practical application
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[0042] Embodiments of the invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.
[0043] Such as figure 1 As shown, the design method of the active vibration control of a kind of propeller and transmission shaft system of the present invention, specific process comprises the following steps:
[0044] Step 1: Establish a model of the propeller and drive shaft system;
[0045] with
[0046] In the above formula, u(jω) represents the control input at the transmission shaft, w i (jω) represents the i-th vibration signal to be attenuated at the propeller blade; y(jω) is the available feedback signal at the transmission shaft, and z i (jω) is the controllable performance variable of the propeller but cannot be used for feedback. Therefore, the desi...
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The invention discloses a design method for active vibration control of a propeller and a transmission shaft system. The method first establishes a model of the propeller and a transmission shaft system, designs an active vibration controller satisfying optimal vibration reduction performance according to the model, and then utilizes the proposed The active vibration control algorithm is used to implement the controller. Finally, the simulation confirms whether the optimal design meets the performance requirements of the propeller and drive shaft system. If the requirements are still not met, it means that the performance index requirements are too high, and the index requirements must be reduced, or the system structure parameters must be redesigned. The present invention proposes an optimal design method that implements control only at the transmission shaft to achieve simultaneous vibration reduction of the propeller and the transmission shaft, so that the designed propeller / transmission shaft has optimal performance.
Description
technical field [0001] The invention relates to a design method for active vibration control of a propeller and a drive shaft system, in particular to an optimal design method for the optimum performance of the propeller and shaft system and the compromise between the two performances. Background technique [0002] Propellers are widely used in the fields of aviation and navigation. For example, in the field of aviation, the propeller blades rotate in the air to convert the rotational power of the engine into propulsion or lift, thereby propelling aircraft powered by piston and turboprop engines; or using rotors and The form of the tail rotor provides lift and torque balance for the helicopter; in the nautical field, the propeller, as the propulsion tool of the submersible, becomes almost the only source of power transmission for submarines and ships. However, the vibration problem of the propeller and drive shaft system as the power transmission source is also an important ...
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IPC IPC(8): G05B13/04
CPCG05B13/042
Inventor 王继强
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS