Multi-airplane-type airplane weight gravity center automatic measuring device

Abstract

The invention provides a multi-airplane-type airplane weight gravity center automatic measuring device which comprises a front servo lifting leveling device, an inclination angle sensor, a tool car and a rear servo lifting leveling device, wherein the inclination angle sensor is installed on an airplane body pitching reference plane, an electric control cabinet is arranged in the tool car, measurement management software is installed in a computer, the computer is electrically connected with the electric control cabinet, and the front servo lifting leveling device and the rear servo lifting leveling device are each provided with a signal converter and a lateral force resisting mechanism; the inclination angle sensor, the signal converters and the electric control cabinet are electrically connected in sequence. According to the multi-airplane-type airplane weight gravity center automatic measuring device, by arranging the inclination angle sensor, the attitude state of the airplane canbe directly obtained, response is faster, and the safety of the airplane during measurement is improved; the lateral force resisting mechanism is arranged; when the aircraft is lifted, the automatic adjustment function of the horizontal position is realized, the operation is easier and safer, and the test precision and efficiency are improved.

Description

technical field [0001] The invention belongs to the technical field of aircraft testing, and in particular relates to an automatic measurement device for weight and center of gravity of multi-type aircraft. Background technique [0002] The weight and center of gravity of the aircraft is an important parameter in aircraft manufacturing. It is necessary to measure the weight and center of gravity of the aircraft during the process of research and trial production of the aircraft, factory inspection, flight test preparation, overhaul and delivery. As the flight speed of medium-heavy aircraft turbojet continues to increase and the flight attitude continues to become more and more complex, higher and higher technical requirements are put forward for the measurement accuracy of the center of gravity of the aircraft, which requires a set of special measuring devices for measurement, such as the publication number is CN105444855A The Chinese patent provided a device for measuring a...

AI Technical Summary

Problems solved by technology

As the flight speed of medium-heavy aircraft turbojet continues to increase and the flight attitude continues to become more and more complex, higher and higher technical requirements are put forward for the measurement accuracy of the center of gravity of the aircraft, which requires a set of special measuring devices for measurement, such as the publication number is CN105444855A The Chinese patent provided a device for measuring and adjusting the center of gravity of aircraft weight, which is measured by three-point support. A pressure sensor is installed at each support point, and a top is provided on the upper part of the pressure sensor. During the jacking process, it is fitted by gravity The attitude of the aircraft can be obtained in this way to prevent accidents caused by excessive tilt angles of the aircraft. When testing different models, the fitting parameters need to be reset, and the jacking heights of the three supports need to be adjusted repeatedly. The operation time is long and the test efficiency is low. At the same time, the position of the plug needs to be adjusted repeatedly to align with the top socket of the aircraft, which can reduce but still cannot eliminate the lateral force. The weight sensor and the top socket of the aircraft are not strictly point contact, but surface contact, and the point of action is not accurate. Repeated adjustments require a high level of skill for the testers, the support points are not punctual, and there is a risk of rollover during the lifting process, resulting in damage caused by the wing touching the ground. Most of the time spent on the alignment of the support points during the test However, the data accuracy, efficiency and versatility of its measurement cannot meet the development needs of aircraft center of gravity measurement technology.

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