A Maturity Based Digital Prototype Design Method for Launch Vehicle

Abstract

The invention discloses a maturity-based design method for a digital prototype of a carrier rocket. The method comprises the steps of firstly building an assembly framework model, and creating and releasing geometric shape constraints for sub-systems in the assembly framework model; secondly building a main force bearing structure model, and realizing coordinated matching of structure design, performance simulation, material preparation and tool design of a main force bearing structure; thirdly building a functional structure detail model, and ensuring the functional structure detail model to have assemblability and repairability; finally finishing digital mock-up of sub-stages of the carrier rocket and the digital prototype of the whole rocket, and ensuring coordinated matching of the sub-stages and the digital prototype of the whole rocket; and performing technical state solidification, and finishing controlled release. According to the method, parallel coordination is realized, the design quality is effectively improved, the design modification and repetition are reduced, and the one-time success rate of general assembly is increased.

Description

technical field [0001] The invention relates to a design method for a digital prototype of a carrier rocket, and belongs to the technical field of digital design. Background technique [0002] In recent years, with the development of 3D digital technology, various models have basically experienced 2D drawing, 3D modeling supplemented by 2D drawing, and 3D modeling as the second 2D drawing is supplemented, and several stages of 2D drawing are completely canceled until the full 3D model is released to the factory. 3D digital prototype has unparalleled advantages in geometric coordination due to its intuition of what you see and what you get. [0003] In the early days, when designers used 3D digital prototypes for modeling coordination, due to the traditional design process (under the traditional design process, the overall assignment of task documents, design drawings, process drawing review, tooling design, material preparation, etc. Influenced by development), the process...

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Problems solved by technology

[0003] In the early days, when designers used 3D digital prototypes for modeling coordination, due to the traditional design process (under the traditional design process, the overall assignment of task documents, design drawings, process drawing review, tooling design, material preparation, etc. Influenced by development), the process of creating a 3D digital prototype is also serial as a whole, that is, the overall task statement, design modeling, process review model, etc., as the work progresses, it is found that the work efficiency is low and the design quality is poor. Without improvement, the details include that the designer finds the problem, finds the manager for scheduling, and the manager finds the relevant person for coordination, and multiple problems cannot be solved at one time.

The reason is that the 3D digital prototype design lacks effective top-level method guidance, lacks parallel collaboration, and lacks effective quality control

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