论文部分内容阅读
为了研究动态滑翔的物理本质,从受力平衡的角度出发,根据物理定律推导平衡方程,从数学上求解出方程解集构成的平衡曲线。以信天翁和某小型无人机在不同风梯度下滑翔为例对平衡曲线进行仿真。分析和仿真结果表明:平衡曲线是满足受力平衡的所有速度状态的集合,由上升和下降两个分支构成;上升分支只有当风梯度足够大时才存在,是动态滑翔的关键。
In order to study the physical essence of dynamic gliding, from the perspective of force balance, the equilibrium equations are deduced according to the laws of physics and the equilibrium curves formed by the solutions of equations are solved mathematically. Taking the albatross and a small UAV gliding under different wind gradients as an example, the equilibrium curve is simulated. The results of analysis and simulation show that the balance curve is a set of all speed states that satisfy the force balance and consists of two branches, ascending and descending. The ascending branch exists only when the wind gradient is large enough, which is the key to dynamic gliding.