基于自顶向下模式的液体火箭发动机骨架模型设计

Design of liquid rocket engine skeleton model based on top-down mode

基于自顶向下设计模式,在Pro/E和Intralink平台上实现了液体火箭发动机骨架模型设计。采用多层骨架设计方案,简化了发动机骨架模型,实现了组合件发布骨架模型并行设计,提高了工作效率。通过将组合件空间位置、轮廓尺寸、接口方位和接口结构要求包含在骨架模型中,用骨架模型替代了传统设计模式中的二维结构设计要求,实现了无纸化接口协调,提高了接口协调的准确性和实时性。研究结果表明,基于自顶向下模式的骨架模型设计可显著提高发动机研制效率,降低研制成本。

Based on the top-down mode, the design of liquid rocket engine skeleton model was finished on the platform of Pro/E and Intralink. With the application of multi-layer skeleton design scheme, the engine skeleton model was simplified, the concurrent design of the assembly issuing skeleton model was realized and the work efficiency was greatly improved. The paperless interface coordination was achieved by replacing the 2D structure design requirement in traditional design mode with the skeleton model, in which the space position, overall dimension, interface orientation and interface structure requirement of the assembly were included. Meanwhile, the veracity and real-time performance of the interface coordination were improved. The research results indicate that the skeleton model design based on the top-down mode can remarkably increase the development efficiency and decrease the development cost of the engine.