Expandable vibration damping type self-adaptive instrument mounting platform

Abstract

The invention discloses an expandable vibration damping type self-adaptive instrument mounting platform. A two-stage split structure or a three-stage split structure is adopted to release the strong coupling between a rocket body structure and instrument equipment. As for the portion connected with a projectile rocket body, characteristics of a main body structure are mainly considered, and the connection strength and the connection rigidity are simultaneously optimized; and as for the portion connected with the instrument equipment, interface mounting of the instrument equipment is mainly considered. The structure of the portion connected with a projectile rocket body main body structure is relatively complex, so that universal design is realized as much as possible, and the investment oftooling and dies is reduced. The structure of an instrument mounting part is as simple as possible, the machining is convenient, and the cost is low so as to adapt to the diversity of interfaces of the instrument equipment.

Description

technical field [0001] The invention belongs to the technical field of projectile body instrument equipment installation, and in particular relates to an expandable vibration-damping self-adaptive instrument installation platform. Background technique [0002] Each section of the launch vehicle body structure involves dozens to hundreds of instrument brackets. Due to the complexity of the control system and launch environment of heavy launch vehicles in the future, the number of instrument brackets may increase exponentially. The structural form and design method lead to a wide variety of instrument supports, many production molds involved, and low production efficiency. However, due to the complexity and variety of instrument bracket parts in the product design of projectile body, on the one hand, they are constrained by the productization process of the instrument, and at the same time, they are also constrained by the structure of the rocket body itself. The product desig...

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Problems solved by technology

[0004] In addition, consistent lightweight design is an important principle of projectile body structure design. CZ-7 and CZ-5 both exposed the problem that they did not reach the designed carrying capacity during the development of the initial sample. The weight reduction and redesign work, and the important means of weight reduction is to reduce the structural parameters, which will inevitably lead to the decline of local bearing capacity

The wall thickness of instrument bracket parts is generally only 2mm. Due to the limitations of material characteristics and process characteristics, further thinning will lead to insufficient rigidity and increased vibration response, so it often makes little contribution to weight reduction design.

[0005] To sum up, the current design method of instrument support has certain limitations. It only considers the satisfaction of the bearing capacity from the perspective of statics, and does not optimize the stress environment of the instrument and equipment from the perspective of dynamics. At the same time, the existing instrument support is generally sheet metal There are many types of gold brackets and most of them involve molds. It has been one of the main factors that affect the product delivery cycle. It is necessary to optimize the design from the aspects of design methods and production modes. It is necessary to combine new product design ideas to achieve light weight. Vibration, high efficiency, low cost and other multiple design goals

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