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Three-dimensional force measurement platform capable of laterally sliding

A force measurement and platform technology, applied in measurement devices, vibration tests, force/torque/work measuring instruments, etc., can solve the problems of large measuring range, low amplitude-frequency response, and high requirements for sensor installation accuracy, and achieve small coupling errors, The effect of high measurement accuracy

Active Publication Date: 2018-12-28
LANDING GEAR ADVANCED MFG
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Four or six piezoresistive three-way force sensors are commonly used in the three-way ground load measurement in landing gear drop tests of large and medium-sized transport aircraft, passenger planes, and fighter jets, which requires high sensor installation accuracy. It results in high processing costs and low labor efficiency; at the same time, this method has a low amplitude-frequency response and a large measuring range, which can basically meet the requirements when performing high-power drop shock tests, but for small-power landing gear, the amplitude-frequency response of the product High, the load measurement error is large, and it cannot effectively simulate and truly reflect the cushioning performance of the product

Method used

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  • Three-dimensional force measurement platform capable of laterally sliding
  • Three-dimensional force measurement platform capable of laterally sliding
  • Three-dimensional force measurement platform capable of laterally sliding

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Embodiment Construction

[0031] Such as figure 1 As shown, the laterally slidable three-way force-measuring platform of the present invention includes a three-way force-measuring platform 1 and a wheel contact platform lateral sliding mechanism 2 connected to the three-way force-measuring platform 1 by threads. Not only can it measure the heading (X direction) load and vertical (Z direction) load, but it can also measure the lateral (Y direction) load of the wheel in real time, and can truly and effectively simulate the friction characteristics of the road surface.

[0032] Such as figure 2As shown, the three-way force measuring platform 1 includes a leveling base 11 and an impact table 17 . A fixed bottom plate 12 is arranged on the top of the leveling base 11, a first two-way sensor bracket 13 is fixed along the Y direction on one corner of the fixed bottom plate 12, a second two-way sensor bracket 115 is set on the opposite corner along the X direction, and a three-way sensor is set on the third ...

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Abstract

The invention discloses a three-dimensional force measurement platform capable of laterally sliding. The three-dimensional force measurement platform is characterized in that an airplane wheel touch side sliding mechanism is arranged on the three-dimensional force measurement platform, a first X-direction force sensor assembly, a second X-direction force sensor assembly, a first Y-direction forcesensor assembly, a second Y-direction force sensor assembly, a first Z-direction force sensor assembly, a second Z-direction force sensor assembly and a third Z-direction force sensor assembly are arranged on the three-dimensional force measurement platform, acting force lines of the first X-direction force sensor assembly and the second Z-direction force sensor assembly intersect at a point, acting force lines of the first Y-direction force sensor assembly and the first Z-direction force sensor assembly intersect at a point, acting force lines of the second X-direction force sensor assembly,the second Y-direction force sensor assembly and the third Z-direction force sensor assembly intersect at a point, a sliding plat is arranged on the airplane wheel touch side sliding mechanism by a planer needle bearing, a tension spring is arranged at a front end of the sliding plate, and Y-direction freedom degree of the sliding plate is open. The coupling error during real-time measurement andanalysis on a three-dimensional dynamic load under the same time domain is small, the measurement accuracy is high, and the three-dimensional force measurement platform can be used for various types of airplanes and unmanned aerial machines.

Description

technical field [0001] The invention relates to a sliding force-measuring platform for drop impact load test, in particular to a laterally slidable three-way force-measuring platform. Background technique [0002] Four or six piezoresistive three-way force sensors are commonly used in the three-way ground load measurement in landing gear drop tests of large and medium-sized transport aircraft, passenger planes, and fighter jets, which requires high sensor installation accuracy. It results in high processing costs and low labor efficiency; at the same time, this method has a low amplitude-frequency response and a large measuring range, which can basically meet the requirements when performing high-power drop shock tests, but for small-power landing gear, the amplitude-frequency response of the product High, the load measurement error is large, and it cannot effectively simulate and truly reflect the cushioning performance of the product. [0003] Based on the lateral load me...

Claims

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Application Information

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IPC IPC(8): G01M7/06G01L5/00
CPCG01L5/00G01M7/06
Inventor 李华刘崇智王保相王小锋党井卫汪赵宏侯博之吴甜
Owner LANDING GEAR ADVANCED MFG
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