Description and Modeling of the Additive Manufacturing Technology for Aerodynamic Coefficients Measurement
Description and Modeling of the Additive Manufacturing Technology for Aerodynamic Coefficients Measurement
复制标题
用于空气动力系数测量的增材制造技术的描述和建模
DOI：
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
C. Aghanajafi
中科院分区：
文献类型：
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作者：
S. Daneshmand;C. Aghanajafi
使用铸造、机加工和增材制造技术来生产风洞测试模型。该模型也可以通过计算流体动力学方法进行分析。两者各有利弊。由于需要多个风洞模型来完成空气动力学实验，如今，模型和翼型制造的最佳方法之一是增材制造技术。这些方法越来越多地用于航空航天工业。本研究利用熔融沉积成型技术制作了一个复杂截面的风洞试验模型的机翼和尾翼。为了提高机械性能和表面粗糙度，在RP模型的表面上使用电镀。对金属模型、熔融沉积模型和电镀模型沿着进行了不同攻角风洞试验。结果表明，电镀铬模型的空气动力系数比未电镀的AM模型更接近金属模型。用电镀模型代替传统制造的零件，节省了成本和时间。这些模型可以用于风洞试验，气动数据质量可以接受。
Casting, machining and additive manufacturing technologies are used in order to produce wind tunnel testing models. The models can also be analyzed by computational fluid dynamics methods. Both have their advantages and disadvantages. Since several wind tunnel models are required to accomplish aerodynamic experiments, nowadays, one of the best methods for models and airfoils manufacturing are additive manufacturing technologies. These methods are increasingly used in aerospace industry. In this research, wing and tail of a wind tunnel test model which has complicated sections, are produced by fused deposition modeling technology. In order to improve mechanical properties and surface roughness an electroplating is used on the surface of a RP model. Metal models along with fused deposition modeling models and electroplating models were tested in wind tunnels with different angels of attack. Results indicated that aerodynamic coefficients of electroplating model with a chromium coating was closer to metal model than those of AM model without electroplating. Substituting conventionally made parts with electroplating models, saves both cost and time. These models can be used in wind tunnel tests and aerodynamic data have acceptable quality.