Gear rack expanded wing experiment platform and experiment method adopting same

Abstract

The invention discloses a gear rack unfolding wing experiment platform and an experiment method adopting the gear rack unfolding wing experiment platform, a piston cylinder capable of containing initiating explosive devices is installed on the experiment platform, the piston cylinder is connected with a piston rod, a rack is arranged at an end of the piston rod, and the rack is meshed with a gear on a wing panel. Therefore, thrust generated by the initiating explosive device can be converted into linear motion of a piston rod, a wing panel is driven to rotate through transmission between the gear and the rack, the motion form of the wing panel is similar to that of a folding wing on an aircraft, and a resistance device for hindering rotation of the wing panel is added to the wing panel; therefore, whether the types and the number of the initiating explosive devices meet the requirements or not is judged according to the resistance provided by the resistance device and a rotation angle of the wing panel, types and the number of the initiating explosive devices can be correspondingly adjusted according to requirements, and experiments are repeated for many times.

Description

technical field [0001] The invention relates to an experiment testing device for a deployment mechanism, in particular to a rack and pinion deployment wing experiment platform and an experiment method using the same. Background technique [0002] On small aircraft, the folding wing design is a common design pattern, which can effectively reduce the space occupied by the wings when they are stored in the aircraft. Among the folding wings, the rack-and-pinion mechanism has the advantages of short operating time, reliable stroke, and simple structure, so there are many folding wings driven by rack and pinion. [0003] At present, most of the folding wings that use the rack and pinion mechanism are driven by the pressure generated by the combustion of pyrotechnics to drive the piston cylinder; while the air resistance acts on the wings when the aircraft is flying, it will The expansion of the wings brings strong external disturbances. Usually, when designing the wing expansion ...

AI Technical Summary

Problems solved by technology

[0004]Although the air resistance torque can be simulated to obtain an acceptable simulation result, the thrust generated by the combustion of pyrotechnics has a short action time and is greatly affected by the environment. Therefore, determining a reasonable dosage is a key step in designing a rack-and-pinion spreading wing mechanism

The usual simulation calculation methods are not suitable for the calculation of the amount of explosives used in pyrotechnics, and multiple experiments are required to obtain as accurate results as possible. In addition, it is difficult to simulate the impact of factors such as temperature, wind speed, and air pressure on pyrotechnics by conventional simulation calculations. product actually produces thrust

Therefore, there are many defects in the existing simulation calculation methods, which need to be further improved.

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