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On the structural test of 1.5-ton test WIG craft

机译：1.5吨试验WIG工艺的结构试验

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摘要

This paper deals with the static structural test of 1.5-ton test WIG (Wing-In-Ground effect) craft designed and built to verify its aero/hydro-dynamic and structural design characteristics prior to the design of full scale 20-passenger WIG craft. The test WIG craft is scaled down from its full scale WIG craft by 1/2 and built using pre-preg carbon/epoxy composites for the majority of structural parts with metallic materials for fittings used at wings to hull connections. To initiate the test, the finite element (FE) models of the test WIG craft are developed and, based on their results, the details of applied load range, strain/deflection gauge types and locations, load application methods and data acquisition system specifications are determined. The test is performed with respect to main wings to hull connection part first and then vertical tail wing to hull connection part and, finally, horizontal tail wing to vertical tail wing/hull connection part. Both the test and FE model results are compared with respect to stresses and deflections and the comparison shows good correlation between them which implies satisfactory design and building of 1.5-ton test WIG craft.
机译：本文涉及1.5吨试验WIG（机翼入地效应）飞行器的静态结构测试，该飞行器的设计和建造是在设计20人全尺寸WIG飞行器之前验证其气动/水动力和结构设计特性。测试的WIG焊枪从其全部WIG焊枪缩小到1/2，并使用预浸料碳/环氧树脂复合材料制成，用于大多数结构部件，其中金属材料用于机翼与船体连接件。为了开始测试，开发了测试WIG飞机的有限元（FE）模型，并基于其结果，详细介绍了所应用的载荷范围，应变/挠度规类型和位置，载荷施加方法以及数据采集系统规格决心。首先对主翼到船体连接部分，然后对垂直尾翼到船体连接部分，最后对水平尾翼到垂直尾翼/船体连接部分进行测试。比较了测试结果和有限元模型结果的应力和挠度，比较结果表明它们之间具有良好的相关性，这表明1.5吨测试WIG工艺的设计和制造都令人满意。

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