进气道AIP面测压装置加装方案研究

针对进气道/发动机相容性试飞中AIP上测量装置加装而引起过渡段变形问题，建立了过渡段径向形状变化评价指标并应用于工程计算，对比分析了过渡段上开孔、加装静压座、总压测量耙加装对过渡段径向尺寸的影响。结果表明:过渡段AIP面上加装测压装置使得过渡段径向尺寸偏离设计值及标准圆；焊接静压座会使过渡段径向尺寸发生较为明显变形，而铆接静压座则影响相对较小；总压测量耙采用两端约束的方案不会对过渡段径向尺寸造成较为严重的影响，但会有效地抑制测量耙的振动幅值。该结果已经应用于工程中，优化了测压装置加装方案。

Research on pressure measuring device installation at AIP of inlet

To discuss the transition part deformation of installing test equipment at AIP during inlet/engine compatibility flight tests, an evaluation index of transition part radial deformation is developed and applied in engineering calculation. Moreover, influences of perforating, installing static pressure base and total pressure test rake on the radial size of the transition part are compared and analyzed. Accordingly, it is indicated that installing pressure test device at AIP may force the radial size to deviate from the designed value and standard circle; welding static pressure test base may introduce obvious deformation while riveting may introduce less deformation relatively; restricting on both sides of the total pressure test rake may not seriously influence the radial size whereas effectively restrain its vibration amplitude. The optimized installation scheme of the pressure measuring device has been adopted in engineering.