C919飞机全机静力试验技术

介绍了C919大型客机全机静力试验的目的及任务需求，分析了试验特点和难点。从试验飞机支持、试验加载及控制、试验测量及监控、损伤检测及状态监测等方面制定了总体技术实现方案，验证结果表明试验系统可靠，技术实现方案满足任务要求。试验中采用了多项创新技术：试验综合加载平台设计技术优化了多系统集成，加快了试验准备速度，降低了试验准备风险；约束点误差转移控制技术将约束部位误差转移至非重点考核部位，提高了关键考核区域试验精度；机身双层地板双向加载技术优化了机身加载及扣重设计，改善了局部载荷的加载精度。技术成果为后续型号试验提供了较高参考价值。

Static test technology for C919 full-scale aircraft structure

This paper presents the purpose of and task requirements for the full-scale aircraft static test of the C919 large civil aircraft. The characteristics and difficulties of the test were analysed. The overall technical implementation plan was drawn from aircraft constraint, test loading and control, measurement and monitoring, damage detection and condition monitoring. The verification results show that the test system is reliable and the technical implementation plan meets the task requirements. A number of innovative techniques are put forward. First, in the comprehensive loading platform design technology, multi-subsystem integration is optimized accelerating the test preparation process and reducing the risk during test preparation. Second, the constraint error transfer control technology transfers the constraint position error to the non-key assessment position, improving the test accuracy in the key assessment area. Third, regarding the two-way loading technology in the fuselage double floors, the loading has been optimized and the loading accuracy of the local loads has been improved. The technical achievements of this study offer a great reference value for future aircraft tests.