Device for generating sine wave electromagnetic force
An electromagnetic force and sine wave technology, applied in the field of electromagnetic force generating devices, can solve problems such as difficulty in ensuring installation and debugging, complex dynamic derivative measurement equipment, and increased time occupied by the wind tunnel, so as to save the need for wind tunnel blowing and debugging , simple structure, creative effect
Inactive Publication Date: 2011-09-28
SHENGYANG AERODYNAMIC INST AVIATION IND CORP OF CHINA
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Problems solved by technology
It is mainly based on wind tunnel experiments for debugging. The dynamic derivative measurement equipment is complicated, and it takes a long time to install and debug in the wind tunnel. Due to the complexity of the system, it is difficult to guarantee a successful installation and debugging. Occupancy time in the hole
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Embodiment Construction
[0047] A device for generating sine wave electromagnetic force is composed of hardware and software. The hardware part includes a fixed frame 1 and a drive motor 2 installed in the fixed frame 1, an eccentric shaft 3, a balance 4, a loading head 5, Uniform magnetic field 6, energized copper wire 7 and sine wave current generator 8, the fixed frame (1) is installed in the wind tunnel dynamic derivative debugging laboratory, so that the balance is parallel to the ground, and the output shaft of the drive motor 2 and the eccentric shaft 3 One end of the eccentric shaft 3 is fixedly connected to one end of the transmission joint 9, and the continuous rotational motion of the driving motor 2 is converted into the reciprocating motion of the transmission joint 9 through the eccentric shaft 3, and the other end of the transmission joint touches the balance 4 The rear end of the balance 4 is rotatably connected to the cross hinge 10, and the cross hinge 10 is fixedly installed on the f...
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The invention discloses a device for generating a sine wave electromagnetic force. A fixed frame is arranged in a wind channel dynamic derivative debugging laboratory; a driving motor is fixedly connected with an eccentric shaft which is connected with a driving joint; the rotation of the driving motor is converted into the reciprocation of the driving joint by the eccentric shaft; the other end of the driving joint supports against a balance which is rotatably connected with a crossed hinge; and the balance carries out the angular displacement sine vibration around the crossed hinge under the common action of the driving of the driving joint and the crossed hinge. A loading head is arranged at the front end of the balance; magnets are arranged at the front end of the loading head; en electrified copper wire is arranged between the magnets; and two ends of the electrified copper wire are respectively connected with positive and negative terminals of a sine wave current generator. The invention can debug a dynamic derivative measuring device outside a wind channel, thereby greatly reducing the occupied time of the wind channel. In addition, the invention improves the reliability ofthe measuring system and omits the blowing debugging of the wind channel.
Description
technical field [0001] The invention relates to an electromagnetic force generating device, in particular to a device for generating sine wave electromagnetic force capable of debugging a dynamic derivative measuring device outside a wind tunnel in an aircraft experiment. Background technique [0002] After the completion of each set of dynamic derivative measurement system for the aircraft, it must go through ground vibration debugging and wind tunnel test demonstration. Previously, we could only measure the moment of inertia and vibration angular displacement in ground commissioning tests. Since the model was damped little (or not) during ground testing, the measurement system was unable to determine the damping of the model. In this way, the ground commissioning test can only determine the magnitude of the load and the law of the curve on the balance, but cannot determine the measurement and processing capabilities of the entire system coefficients. That is to say, succ...
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IPC IPC(8): G01M9/00
Inventor 江春茂潘金柱陈雪原
Owner SHENGYANG AERODYNAMIC INST AVIATION IND CORP OF CHINA