新型折流板装置结构技术研究及其拓扑优化探讨

折流板是保证发动机尾喷试验能够安全进行的重要保障装置,随着飞机发动机类型的多样化,对折流板的性能也提出了更高的要求。首先综述国内外新型折流板装置研究的最新技术进展,并对各个方案的优劣进行比较。针对各新型折流板方案中共同存在的问题,对新型折流板装置的拓扑结构进行研究,并对比优化准则法和数学规划法在折流板拓扑优化中的求解效率。经过优化后,折流板车辆通过面的质量较现有装置下降31.9%,可以降低新型折流板升降过程中对于动力源的需求。

Structural Technology and Topology Optimization Research of New Model of Blast Deflector

Blast Deflector is an essential equipment during the jet engine test. It deflects the hot stream upwardly to secure the safety of faculty and equipment behind the Blast Deflector when it is in the risen position. As the types of jet engines become versatile, they demand better performance of the Blast Deflectors. This paper first summarizes the development of blast deflectors worldwide in recent years and compares different models from their advantages and drawbacks. Then this paper will investigate the topology optimization problem in the new model.