面向增材制造的液压阀块集成优化设计

Integrated Optimization Design of Hydraulic Manifold by Design for Additive Manufacturing

液压系统是航天设备的主要动力组成,随着设备集成度越来越高,对液压系统轻量化、集成化提出了更高的要求。其中液压阀块是液压系统的重要组成元件,传统设计结构多以直孔交叉形式实现流道连通,导致设计局限大,工艺孔道多,生产加工困难,同时材料利用率低,浪费严重。采用面向增材制造(Design for Additive Manufacturing,DFAM)的设计思维,对液压阀块进行轻量化集成优化设计,通过取消工艺孔道、流道直通、自支撑设计、降低无效材料使用等手段,实现阀块高自由度、轻量化、集成化设计,并通过增材制造的方式实现,为航天设备拓展增材制造使用提供有益借鉴。

The hydraulic system was the main power component of aerospace equipment,and with the development of equipment integration,the higher requirements were put forward for the lightweight and integration of hydraulic systems.The hydraulic manifold was an important component of the hydraulic system,and the traditional design structure was mostly connected in the form of straight hole crossing,which leaded to large design limitations,many process channels,difficult production and processing,and low material utilization rate and serious waste.The design for additive manufacturing(DFAM)was adopted to optimize the lightweight integrated design of the hydraulic valve block,and the high degree of freedom,lightweight and integrated design of the valve block were realized by canceling the process hole,the flow channel straight-through,the self-supporting design,and reducing the use of ineffective materials,etc.,which provided a useful reference for the expansion of the use of additive manufacturing in aerospace equipment.