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The Arc-Heated Direct-Connected Testing Technology of Scramjet Combustor Thermal Protection System

机译：Scramjet燃烧器热保护系统的电弧加热直接连接测试技术

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Based on the original arc-heated direct-connected Scramjet combustor working performance testing facility, a new method, which was used to test the long-time thermal protection performance of the active and passive thermal protection Scramjet combustor, had been developed. According to the active thermal protection Scramjet combustor test demand, the fuel supply and control system had been improved, which could steadily supply fuel when the downstream pressure was increasing. The peak temperature distribution of the Scramjet exterior surface had been measured by B-type thermocouples, which were pressed on combustor exterior surface by the zirconia insulation material and high-temperature alloy steel ring. The axial deformation of the Scramjet combustor had been gotten by the axial-unlimited supports and displacement sensors. With the three parts improvement, the arc-heated direct-connected testing technology of Scramjet combustor Thermal Protection System (TPS) could last for thousand seconds. And a mass of the Scramjet combustor thermal protection performance data in the normal working condition, such as the fuel flow rate, the exterior wall peak temperature distribution and the axial deformation data, had been obtained for a long time.
机译：在原有的电弧加热直连式超燃燃烧室工作性能测试设备的基础上，开发了一种新的方法来测试主动和被动热保护超燃燃烧室的长期热保护性能。根据主动热保护Scramjet燃烧室的测试需求，改进了燃油供应和控制系统，该系统可以在下游压力增加时稳定地供应燃油。 Scramjet外表面的峰值温度分布已通过B型热电偶测量，该热电偶由氧化锆绝缘材料和高温合金钢环压在燃烧室外表面上。 Scramjet燃烧室的轴向变形已通过无限制的轴向支撑和位移传感器获得。随着这三个部分的改进，Scramjet燃烧室热保护系统（TPS）的电弧加热直接连接测试技术可以持续数千秒。长期以来，已经获得了燃油流量，外壁峰值温度分布和轴向变形数据等在正常工作条件下大量的Scramjet燃烧室热保护性能数据。

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