Large size high fundamental frequency lightweight surface tension storage tank

Abstract

The invention provides a large-size, high-base frequency, lightweight surface tension storage tank, comprising: a cylindrical section (1), two middle partitions (2) welded inside the cylindrical section (1), and the upper end of the cylindrical section (1) The welded gas shell (3), the liquid shell (4) welded to the lower end of the cylindrical section (1), the management device (5) welded to the two intermediate partitions (2), the gas shell (3), and the liquid shell (4), And the gas nozzle (6) and the liquid nozzle (7) welded to the two ends of the management device (5) respectively. The invention can meet the requirements of multi-directional tasks in the whole process of orbit; the overall base frequency of the storage tank of the invention is high, effectively avoiding the sensitive frequency band of the whole star, and has good mechanical resistance; the invention adopts dynamic simulation calculation, optimizes the structural design, and The overall mass of the box is relatively light.

Description

technical field [0001] The invention relates to the field of aerospace technology, in particular to a large-size, high fundamental frequency, lightweight surface tension storage tank. Background technique [0002] According to its mission characteristics, the aircraft needs a storage tank that meets the requirements of multi-directional missions, and the storage tank has a large volume. This requirement was proposed for the first time among the existing domestic spacecraft. In the past, spacecraft generally chose one side, or required multi-directional missions in orbital attitude control, but the total task load was not large, so the amount of propellant carried was not much. A small and medium-sized full-management surface tension storage tank with a volume of no more than 200L can be satisfied; or, the aircraft belongs to a composite mission profile, and only orbit control work is performed in the early stage, and the acceleration direction is generally in the direction o...

AI Technical Summary

Problems solved by technology

This requirement was proposed for the first time among the existing domestic spacecraft. In the past, spacecraft generally chose one side, or required multi-directional missions in orbital attitude control, but the total task load was not large, so the amount of propellant carried was not much. A small and medium-sized full-management surface tension storage tank with a volume of no more than 200L can be satisfied; or, the aircraft belongs to a composite mission profile, and only orbit control work is performed in the early stage, and the acceleration direction is generally in the direction of sinking. To the task requirements, the best choice for this type of task is a semi-managed surface tension tank

However, for an aircraft with a long lifespan and multi-directional missions, the existing small and medium volume full-management surface tension tanks and semi-management surface tension tanks cannot meet the requirements. task job requirements

Images