SLS Booster Development

doi:10.2514/6.2015-3874

Proceedings Article10.2514/6.2015-3874

SLS Booster Development

- 27 Jul 2015

2

TL;DR: The SLS booster combines proven technology from the past with cutting edge technology demonstrated by Qualification Motor #1 to support NASA's Space Launch System.

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Proceedings Article•10.2514/6.2015-3873

Solid Rocket Motor Reliability and Historical Failure Modes Review

Timothy Sojourner, +7 more

- 27 Jul 2015

TL;DR: In this paper, the authors present a review of trends in historical reliability of solid rocket motors, identification of historical failures modes and their implications to modern systems, and a brief summary review of approaches that have been developed to improve reliability.

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10.3969/j.issn.1000-1093.2016.11.001

Application of Ultrasonic Real-time Measurement Technology in Solid Rocket Motor

SUN De-chuan, +2 more

Abstract: 利用超声波对固体推进剂燃速进行实时测量是先进的燃速测量方法之一.针对超声波技术在固体火箭发动机试车中的应用,对典型固体火箭发动机材料进行测试研究,获得了发动机材料的超声波信号特征.将超声波探头直接安装在发动机壳体外侧部位,测量了固体推进剂在常压燃烧时的厚度变化.针对动态燃速测试,提出了超声波数据处理方法,对固体装药在常压燃烧下的回波进行处理,获得了装药的厚度变化过程和燃速,并分析了燃面附近温度分布对燃速测量的影响.结果表明:用超声波测量金属壳体固体发动机的燃速必须在壳体上开窗使超声波透过壳体和绝热层界面,而对复合材料壳体发动机可将超声波探头直接安装在壳体外侧;燃烧引起的装药表面温度变化对测量的影响可以忽略;该数据处理方法可以有效获得装药厚度变化.

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