2m超声速风洞总体结构设计

“高速化”、“精确化”是未来飞行器一个极为重要的发展方向,是提高飞行器效能的有效手段,而先进飞行器的研制强烈依赖于地面模拟试验设备——风洞.目前我国现有的超声速风洞设备尺寸和试验模拟能力还有很大不足,主要体现在真实模拟、模拟能力、精确测量等方面.在这种背景下,开展了2m超声速风洞的建设,笔者针对风洞的特点主要介绍结构总体设计概况.该风洞为下吹一引射式暂冲型超声速风洞,采用全钢结构,主要涉及风洞总体布局、模型更换方式、支座布局、风洞洞体各部段间连接、密封和定位、风洞洞体的强度和刚度、洞体水压试验等问题.

The general structural design for 2m supersonic wind tunnel

The high speed and the precision is a development orientation for the aircraft in the future and an effective means that will enhance efficiency of the aircraft.But these depend on the ground simulation facility,i.e.wind tunnel intensively.At present,the sizes and test capabilities of the supersonic wind tunnels in China are far from enough in aspects of veritable simulation,simulation capability,accurate measurement and so on.In this background 2m supersonic wind tunnel was developed.The general structural design based on characteristics of this wind tunnel is introduced in this paper,which is a blowdown-ejector-intermittent wind tunnel with full-steel structure.The general information of the structural design is described,especially on the whole layout,model convertible mode,support position arrangement,the joint,seal and orientation of different sections,intensity and rigidity of the pressurized shell,water pressure test of the pressurized shell,and so on.