多接头大载荷机翼加载处理方法

由于试验件缺少右外翼部分,对接接头多且复杂,试验考核载荷较大,给机翼载荷的施加带来较大难题。对三组接头设计独立的加载夹具,前中接头通过延伸加载力线间距的方式降低实际加载点载荷,依据上下接头处载荷方向相反的特点,设计不同的加载接头连接形式,保证了飞机实际对接接头的变形自由度。依靠坐标转换将后接头载荷进行调整,方便试验现场实施。该方法能够保证传递至接头上的载荷准确,避免了各接头之间的刚度匹配问题,且方便安装,满足试验要求。采用局部约束装置,有效避免了接头处有害损伤的产生,对接头起到实时保护。

Multi-joint and Large Load Wing Loading Method

Due to the lack of the right outer wing part of the test piece, the many and complicated butt joint, and the large test load, which brings great difficulty to the application of the wing load. Therefore the independent loading clamp is designed for the three sets of joints. The actual load of the front and middle joint is reduced by extending loading force line spacing. According to the opposite loading position of the upper and lower joints, different loading joint connection forms are designed to ensure the deformation freedom of the actual butt joint of the aircraft. The rear joint load is adjusted by coordinate conversion, and the test site is conveniently implemented. The method can ensure to transmit the accurate load to the joint, avoid the rigidity matching problem between the joints, and is convenient to install and meet the test requirements. The use of local restraint device effectively avoids the generation of harmful damage at the joint and protects the joint in real time.