Aviation replaceable cushion dynamic airworthiness testing device and testing method

Abstract

The invention relates to the technical field of airplane part strength dynamic airworthiness testing, and especially relates to an aviation replaceable cushion dynamic airworthiness testing device and testing method. The testing device comprises an impact testing bench used for applying a preset impact load to a tested device so as to carry out a preset impact test; a rigid seat, wherein a replaceable cushion is fixedly arranged on the rigid seat; a testing clamp used for fixedly installing the rigid seat to the impact testing bench according to a preset installation mode; a dummy fixed on the replaceable cushion; a load sensor arranged in the dummy; and a light measuring device used for monitoring the motion attitude and the deformation of the tested device arranged on the impact testing bench in the testing process. According to the invention, the rigid seat is utilized to simulate a practical elastic seat, the testing condition is simplified, the testing cost of aviation seat cushions is greatly lowered, and the cost for purchasing the cushions is lowered for an aviation company.

Description

technical field [0001] The invention relates to the technical field of dynamic airworthiness test of aircraft component strength, in particular to a dynamic airworthiness test device and test method for an aviation alternative seat cushion. Background technique [0002] According to the technical standard TSO127A (rotorcraft, transport aircraft, normal and sports aircraft seating systems) of the General Administration of Civil Aviation of China, it is necessary to verify the ability of the seat system to protect the occupants through dynamic tests. In the test, dummy is used to simulate the occupants. For the two test subjects: [0003] Test subject 1: single-row seat test, the main impact component is along the spine direction, but combined with the longitudinal impact, the test is mainly used to evaluate the rationality of the seat structure under the joint action of vertical / longitudinal load, critical lumbar spine / thigh compression force and permanent deformation of the...

AI Technical Summary

Problems solved by technology

[0009] However, most of the seats used by my country's airlines are imported products, which basically cannot meet the above requirements

Therefore, most of the time, foreign cushions or seats can only be replaced in batches, and the economic cost is extremely high.

The manufacturing technology of aviation cushions has long been mature i

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