A method for adjusting double-slot retreating flaps

Abstract

The invention relates to a method for adjusting a double-slotted Fowler flap. The method is particularly suitable for process adjustment of flaps of middle-sized medium-range transport aircrafts. In the aircraft manufacturing process, accumulation of tolerance and errors such as wingspans, chord lengths and theoretical outlines of left and right airfoils can directly cause the air crash problems such as inconsistency of lift force of the left and right airfoils, aircraft yawing and aircraft overshooting during taking-off and landing. The method aims at solving the technical problem of adjustment of the double-slotted Fowler flap, improving the production efficiency of the middle-sized medium-range transport aircrafts in China and breaking through one of the bottlenecks hindering the development of the heavy-duty medium-range transport aircrafts in China. By means of the method, the number of flight safety hazards is reduced, the international competitiveness of aircrafts in China is enhanced, and a sufficient technical reserve on special aircrafts in China is made for opening and seizing the international market. Meanwhile, a large number of excellent aerospace manufacturing and assembly technical personnel is cultured and trained during the process of technical solution design and argumentation.

Description

technical field [0001] The invention belongs to the technology in aviation manufacturing and assembly technology, and relates to an adjustment method of a double-slot retreating flap, especially suitable for the technological adjustment of the flap of a medium-sized medium-range transport aircraft, and the technology can be popularized and applied to a double-slot retreating structure flap wing of all aircraft. Background technique [0002] In the 1970s and 1980s, our country began to carry out the imitation work of AN-12 aircraft. In the past few decades, our country has accumulated a lot of technological experience from imitation to development, and has developed more than 10 aircrafts. Various types of high-end, high-end and cutting-edge weapons and equipment platforms. In recent years, a new type of medium-sized medium-range transport aircraft has been used as an aircraft platform to serve the national defense of the motherland, and it is the backbone of national defense...

AI Technical Summary

Problems solved by technology

During the research process, it was found that the manufacturing process of my country's medium-sized and medium-range transport aircraft uses analog quantity transmission like other aircraft in my country, and it is impossible to avoid the problems of large tolerance and large error accumulation caused by analog quantity transmission.

The accumulation of these tolerances and errors causes the lift of the left and right wings of the aircraft to be inconsistent, which can easily lead to flight accidents when the aircraft overruns the runway during takeoff and landing.

Images