专家讨论了NASA对猎户座飞船隔热罩的调查结果，该飞船在阿耳忒弥斯I号无人测试飞行的再入过程中经历了意外的炭化材料损失（loss of charred material）。对于阿耳忒弥斯II号载人测试飞行，工程师将继续准备猎户座飞船，使用已经安装在舱体上的隔热罩。NASA还宣布，阿耳忒弥斯II号的目标发射时间为2026年4月，阿耳...
专家讨论了NASA对猎户座飞船隔热罩的调查结果,该飞船在阿耳忒弥斯I号无人测试飞行的再入过程中经历了意外的炭化材料损失(loss of charred material)。对于阿耳忒弥斯II号载人测试飞行,工程师将继续准备猎户座飞船,使用已经安装在舱体上的隔热罩。NASA还宣布,阿耳忒弥斯II号的目标发射时间为2026年4月,阿耳忒弥...
Engineers determined that during Orion’s return from its uncrewed mission around the Moon, gases generated within the heat shield’s ablative material, known as Avcoat, were unable to vent and dissipate as intended. This led to a buildup of internal pressure, causing cracks and the shedding o...
在NASA工程师发现阿耳忒弥斯1号飞船隔热罩问题后,该机构立即启动了一项全面的调查过程,组建了一支多学科专家团队,涵盖热防护系统(thermal protection systems)、气动热力学(aerothermodynamics)、热测试与分析(thermal testing and analysis)、应力分析(stress analysis)、材料测试与分析(material test and analysis)等众多...
expert on advanced entry systems and thermal protection materials. Invented a heat-shield material ...
ABLATIVE MATERIALSHEAT SHIELDINGTHERMAL CONDUCTIVITYVACUUM EFFECTSATMOSPHERIC ENTRYELASTOMERSLine source vacuum thermal conductivity measures for elastomeric heat shield materialComparin, R. A.NASA (non Center Specific)Wilson, W. G.
CEV shieldmaterial must protect the capsule and its crew from incredible heat as thecraft plunges through Earth's atmosphere from orbit, or plowing in from theMoon. Eventually, the CEV will haul back to home the first crew from Mars. ...
"Now, this heat shield is an ablative material — it is supposed to char — but it's not what we were expecting, with some pieces of that char to be liberated from the vehicle." Related: Facts about NASA's Artemis moon program RELATED STORIES: — NASA's Artemis 3 astronaut ...
NASA had already shared information about the issues with the heat shield in a briefing last year, although Orion program manager Howard Husaid at the timethat while there was more charred material than expected, there was still significant margin left over on the heat shield and that this was...
NASA also shared that it had identified the issue with the heat shield material, which was that gases were building up in a layer of material called Avcoat and could not escape, causing the material to crack. It emphasized that if there had been crew inside Orion during Artemis I, they ...