A method of penetration location measurement

Abstract

The application discloses a kind of penetration position measurement methods, comprising the following specific steps: first, first, aluminium alloy target plate is fixed in the central support by multiple fixed bolts;Second step, paste four groups of metal foil strain gauges on the surface of target plate at predetermined position, then connect metal foil strain gauges with high-precision data acquisition equipment system;Third step, align the penetration point of target plate and fire bullet, and high-precision data acquisition equipment system records the strain signal wave rising moment of four groups of metal foil strain gauges;Fourth step, calculate coordinates by three-point positioning algorithm, and calculate positioning residual as the basis for accuracy evaluation.The application realizes the fusion calculation of multi-measuring-point time difference information by three-point positioning, so that the penetration position measurement precision is high, and the stability is good, can truly reflect the coordinate information of penetration point in the plane of target plate, improve the reliability and accuracy of penetration test data, and provide accurate data support for aircraft structure anti-penetration performance evaluation and structure optimization.

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