For the large load realized by Tianzhou-1, the high-efficiency load-bearing shelf design adopted in the interior is indispensable. The details and configuration of this shelf are very particular.
The shelf adopts a beam-slab structure based on honeycomb panels and carbon fiber standing beams, forming a large number of standard loading units with good force transmission effect, and the weight ratio of structure to cargo is 8%. At the same time, the embedded edge sealing beam method suitable for the honeycomb panel is used to cleverly eliminate the sharp edges of the honeycomb panel structure, which not only avoids scratching the hands, but also solves the problem of weak edges and easy to damage.
The designer also carefully designed a large-capacity lightweight embedded structure that can adapt to the installation of traditional rigid structures and the connection load of flexible straps. After testing, three such embedded structures can carry a luxurious car. In addition, the connection between the large load-bearing shelf structure and the main structure of the sealed cabin is also a highlight of the structural design. The design of carbon fiber combined with aluminum alloy avoids damage to the structure caused by internal pressure loads in the rail environment.
