Day boat first flew, first will carry 6 tons of cargo space
Xinhua News Agency, Hainan, Wenchang April 19 (reporters Wang Nannan and and Chen Xi)-reporters learned from the China manned space engineering office, China's first aircraft boat cargo ship days, first will carry more than 6 tons of supplies and equipment into space.
Day boat, first main task is for the temple on the second "ship". In these goods, in addition to maintaining various supplies outside the temple on the second run, there are a large number of experimental equipment and loads of space. As the launch vehicle capacity is fixed, if you want to ship more goods, it is necessary to ensure the good performance of the craft at the same time, minimizing the "dead weight".
Day boat first issue of the "waist" is a connection box. "In order to make the parts firmly connected, connection boxes are very thick. "Days boat first, freight spacecraft Director designer King introduced, research personnel after times test validation, through NC processing simulation technology, will connection box design into hollow form, will non-by force part of" filler meat "precision removal, only retained structure by force part, equivalent to for days boat first, for has" pumping fat ", guarantee connection box in enough strong of premise Xia weight reduced 50% around.
Day boat first, outside is a wall-slab structure, although only about 3 mm thick, but researchers still appeared to be "reduced fat" in the matter. Due to wall plate covers a large area, even if you only remove the A4 paper as a thin layer, the whole class will decrease the weight of many. "On the premise of not affecting the performance of the craft, we adopted strict control of process parameters such as temperature, cutting speed, wall thinning, day boat first weight of 30 kilograms. "The King told reporters that saves weight, and can transport several pieces of equipment.
In order to make the cabin space is more reasonable, and loading more cargo, cargo boat, first by his "bones"-rack divided into many areas. The shelf design, researchers used light-weight high-strength material. "Shelf Panel" dashboard use aluminum honeycomb panel, "shelf framework" vertical beam using carbon fiber material. "After a lot of research after, day boat, first the overall structure light and strong, ensuring that orders are delivered intact Temple on the second. "The King said.
(Editors: Liu Cheng UN649)
2017-04-19 22:27:32
Xinhua
天舟一号将运送6吨货物首飞太空
新华社海南文昌4月19日电（记者王楠楠、陈曦）记者从中国载人航天工程办公室获悉，中国首艘货运飞船天舟一号将装载超过6吨的物资与设备飞向太空。
天舟一号的主要任务是为天宫二号“送货”。在这些货物中，除了维持天宫二号运行的各种补给外，还有大量太空实验设备和载荷。由于运载火箭的运载能力是固定的，如果要运送更多的货物，就必须在保证飞船良好性能的同时，尽量减少“自重”。
天舟一号的“腰部”是一个个连接框。“为了使各部分牢固连接，连接框一般都很厚实。”天舟一号货运飞船主任设计师王为介绍，科研人员经过多次试验验证，通过数控加工仿真技术，将连接框设计成镂空形式，将非受力部分的“赘肉”精准去除，只保留结构受力部分，相当于为天舟一号进行了“抽脂”，保证连接框在足够结实的前提下重量减少50%左右。
天舟一号的外部是一种壁板结构，虽然设计厚度仅为3毫米左右，但在科研人员看来仍有“减脂”的余地。由于壁板面积很大，即使只去除A4纸那样薄薄的一层，整舱的重量也会下降不少。“在不影响飞船性能的前提下，我们通过严格控制加工温度、切削速度等参数，将壁板变薄，使天舟一号的自重减轻了30公斤。”王为告诉记者，省下的这些重量，又可以多运送好几台设备。
为了使舱内空间利用更加合理，进而装载更多的货物，天舟一号的货舱被自己的“骨骼”——货架分割成了许多区域。在货架的设计上，科研人员选用了轻质高强度材料。“货架面板”仪器板使用的是铝合金蜂窝板，“货架框架”立梁使用的是碳纤维材料。“经过多次工艺攻关后，天舟一号的整体结构变得又轻又强壮，确保能将货物完好无缺地送达天宫二号。”王为说。
(责任编辑：刘盛钱 UN649)
2017-04-19 22:27:32
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