Grid wing, novel rocket interstage section structure and application

Abstract

The invention belongs to the technical field of rocket separation, and discloses a grid wing, a novel rocket interstage section structure and application. The novel rocket interstage section structure is provided with an upper-stage rocket, the upper-stage rocket is connected with a lower-stage rocket, and the lower-stage rocket is folded with grid wings or grid rudders. The grid wings / grid rudders are manufactured in a titanium alloy SLM printing or casting or welding mode and are all installed on the top of a first-stage rocket in the circumferential direction, and the upper-stage rocket and the lower-stage rocket are each provided with a rocket engine. According to the grid wing, the novel rocket interstage section structure and the application, the multiple grid wings are installed at the position, close to the interstage section, of the upper-stage rocket in the circumferential direction, the grid wings are in a folded state before the rockets are separated, the grid wings are connected with the upper-stage rocket in a fixed-connection destructible or non-fixed-connection separable mode, and loads are transmitted to the upper-stage rocket independently or together with other interstage bearing structures. According to the grid wing, the novel rocket interstage section structure and the application, the weight is reduced, the launching cost is reduced, and the launching efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of rocket separation, and in particular relates to a grid wing, a novel rocket interstage structure and its application. Background technique [0002] At present, in order to meet the needs of rocket launches, improve rocket launch efficiency, and reduce launch costs, the recycling of rocket sub-stages is being vigorously carried out at home and abroad, and the recycling process is mostly controlled by grid wings. [0003] As the lifting surface and control surface of air vehicles and water navigation devices, grid wings can improve their lift characteristics, increase their stability and controllability, and at the same time ensure that they have sufficient specific strength and specific stiffness in each flight stage. [0004] In the field of traditional rocket technology, before the rocket stages are separated, the interstage stage is the main interstage load-bearing structure, and the grid wings are atta...

AI Technical Summary

Problems solved by technology

[0004] In the field of traditional rocket technology, before the rocket stages are separated, the interstage stage is the main interstage load-bearing structure, and the grid wings are attached to the rocket as a part of the substage rocket, which not only affects the aerodynamic appearance of the rocket, but also affects the aerodynamic appearance of the rocket. It does not play any role in the process of emptying; at the same time, unnecessary loads are generated, which undoubtedly increases part of the weight and reduces the launch efficiency

[0005] Through the above analysis, the existing problems and defects of the prior art are as follows: the grid wings of the prior art not only affect the aerodynamic appearance of the rocket, but also generate unnecessary load during the launch process of the rocket, which increases part of the weight and reduces the launch rate. efficiency

In order to meet the strength requirements of the inter-stage connection structure, the inter-stage structure is heavy, complex in structure, and heavy in weight. Considering the recycling, the grid wing is used to further increase the weight of the structure

[0006] The difficulty in solving the above problems and defects is as follows: In the past, the interstage structure and recovery grid wings of rockets were designed separately. In order to ensure the structural strength, the interstage connection section was heavy and complex in structure; , a high-strength grid wing must be additionally designed, but the grid wing before recovery is installed on the rocket as an appendage, and the weight of the grid wing is a huge redundant mass before launch and recovery, which cannot be avoided

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