【原创翻译】美宇航局待电池送达后，才能恢复太空行走

发表于 2014-8-12 17:52

　　http://aviationweek.com/blog/nas ... ming-iss-spacewalks

来自战略之页的文章。

　　美宇航局待电池送达后，才能恢复太空行走

　　NASA Waiting On Batteries Before Resuming ISS Spacewalks

2014年8月10日

　　Aug 10, 2014 by Mark Carreau in On Space

　　美国国家宇航局原定于8月底在国际空间站外恢复太空行走,现在不得不再次推迟这一计划。活动已暂停一年多,当时冷却系统里的水流入了欧洲航天局宇航员卢卡·帕米塔诺的头盔里。

　　NASA is delaying plans for a late August resumption of U. S. maintenance spacewalks outside the International Space Station, activities that were suspended more than a year ago when cooling system water flowed into the spacesuit helmet of European Space Agency astronaut Luca Parmitano.

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　　美国精心部署的太空行走,原定于8月21日和29日,将延期到今年晚些时候。这要等到新宇航服电池送达以后了，空间物资输送任务(空间X龙物资输送任务)暂定于9月进行。

　　U.S.-orchestrated spacewalks, previously set for Aug. 21 and 29, will be rescheduled for later this year, following the delivery of new spacesuit batteries launched aboard the next Space X Dragon cargo delivery mission tentatively planned for September.

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　　由于担忧内部引线在地面测试的性能，美国宇航局空间站任务的管理者8月5日决定，将更换宇航服里的电池。这样原准备于8月底的太空行走被搁置了。空间X龙任务为下一次物资交付提供了机会。

　　Preparations for the late August excursions were shelved following an Aug. 5 decision by ISS mission managers to replace the batteries in the NASA space suits currently on the station because of concerns with the performance internal fuses during ground testing. The Dragon mission offers the next delivery opportunity.

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　　美国原定的用于所有紧急空间站外部维护的太空行走不得不暂停。由于在2013年7月16日太空行走时，冷却系统中的水流入帕米塔诺的头盔。冷却水流进他的眼睛,耳朵和嘴巴里,意大利宇航员好不容易才返回到空间站气闸里。

　　Scheduled U.S. spacewalks to address all but emergency external ISS maintenance needs were suspended when cooling system water flowed into the helmet of the NASA suit worn by Parmitano during a July 16, 2013 spacewalk. With water massing around his eyes, ears and mouth, the Italian astronaut made his way back to the safety of the station's U.S. Airlock.

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　　宇航局调查发现，问题在于风机泵分离器(位于宇航服便携式生命保障系统的背包里)中的二氧化硅粒子的累积。冷却系统的水在整个衣服里循环，硅来自冷却系统中的过滤器。

　　A NASA investigation traced the problem to a buildup of silica particles in the fan pump separator, a mechanism located in the portable life support system backpack of the spacesuits. The silica's source was further traced to filters in the cooling system that circulates water throughout the shuttle-era garments.

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　　在8月21日的太空行走中,宇航员斯旺森和里德·怀斯曼将替换失效的分流装置,它已经干扰了一些投向空间站的太阳能分布。怀斯曼和欧洲航天局宇航员亚历山大·格斯特8月29日会继续太空行走，将一个不活跃的氨泵模块从太阳能桁架的临时位置转移到气闸附近的承载平台。

　　During the Aug. 21 spacewalk, Swanson and fellow NASA astronaut Reid Wiseman were to replace a failed sequential shunt unit that has interrupted some of the distribution of solar power to the station. Wiseman and European Space Agency astronaut Alexander Gerst were to follow on Aug. 29 with a spacewalk to move an inactive ammonia pump module from a temporary location on the station's solar power truss to a stowage platform near the U.S. air lock.

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发表于 2014-8-12 23:08

发表于 2014-8-12 23:49

发表于 2014-8-13 02:25

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【原创翻译】美宇航局待电池送达后，才能恢复太空行走

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