Drop test force measuring platform with friction coefficient adjustment function

Abstract

A drop test force measuring platform with a friction coefficient adjustment function comprises a base. A groove used for placement of a combination material is formed in the center of the base, and press beams used for fixing the combination material are arranged on two sides of the groove respectively. A slope is arranged on one side of each press beam and is used for squeezing the combination material to stop the combination material to slide out of the groove. The bottom of the groove is smooth so as to meet smooth placement requirements of various combination materials. Threaded holes are formed in one end of the groove, and the combination material placed in the groove is pressed tightly through bolts to be prevented from loosening horizontally. The drop test force measuring platform has the advantages that the groove is formed in the center of the base, and friction coefficient adjustment is realized through replacement of different attributes of combination materials placed in the groove, so that simplicity, convenience and easiness in control are achieved; test requirements are met, cost is saved, tire 'biting' is avoided, and high applicability is achieved.

Description

technical field [0001] The invention relates to the technical field of drop shock test of aircraft landing gear, in particular to a force measuring platform for drop shock test with adjustable friction coefficient. Background technique [0002] Aircraft landing gear drop test is a dynamic test simulating the landing impact of an aircraft. It is carried out on a special drop shock test bench. The drop shock test bench uses various facilities and technologies to simulate aircraft landing conditions and measure various mechanical parameters of the landing gear to verify and Check landing gear performance. Among them, the drop shock test bench not only requires the function of measuring the vertical load, directional load and span load of the landing gear landing, but also requires the simulation of the friction coefficient of the runway surface. The friction coefficient directly affects the heading load of the landing gear drop test. Therefore, the national military standa...

AI Technical Summary

Problems solved by technology

However, as military and civilian aircraft widely adopt tires around 1MPa or greater than 1MPa, for high-pressure and ultra-high-pressure tires, the strip-shaped groove is not o

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