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摘要:
折叠翼飞行器的变体过程伴随质量分布、刚度分布及气动载荷分布的大幅动态变化，是一个高度复杂的动力学过程。为实现该过程各种动力学问题的有效分析，基于共享内存技术开发了一套高性能的耦合计算程序，并在此基础上整合了Adams多体动力学计算软件、非定常气动力计算程序及飞行控制技术，搭建了折叠翼的气动弹性变体飞行仿真平台。基于该平台，对折叠翼进行了气动弹性分析和飞行变体过程仿真，验证了平台强大的计算和分析能力。
Abstract:The distribution of mass, stiffness, and aerodynamic load all significantly alter during the folding wing’s deformation process, which is a highly complex dynamic process. This paper develops a high-performance coupled computing program based on shared memory technology to realize the effective analysis of the dynamic process. Based on this program, it integrates flight control technology, unsteady aerodynamic calculation software, and multi-body dynamics calculation software to build an aeroelastic morphing flight simulation platform. Finally, the powerful computing and analysis capabilities of the platform are demonstrated through the simulation of aeroelastic response and flight-folding process for a folding wing aircraft.
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Key words:
- folding wing /
- morphing aircraft /
- dynamics simulation /
- aeroelasticity /
- flight simulation
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图 6 折叠翼气动弹性响应计算模型
Figure 6. Model used in aeroelastic response calculation for folded wing
图 7 受扰后后缘翼尖时域响应（$ \theta = {90^ \circ } $）
Figure 7. Time domain response of disturbed trailing edge wing tip ($\theta= $90°)
图 13 稳态和瞬态仿真结果对比
Figure 13. Comparison of simulation results by steady-state and transient simulation
表 1 飞行仿真模型主要几何参数
Table 1. Main geometric parameters of flight simulation model
折叠角/(°) 重心位置xcg/m 转动惯量Iy/(kg·m2) 0 (2.12,0,0) 4502 120 (2.12,0,0.24) 4675 
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