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一种飞机辅助动力装置进气口鼓包构型,其特征在于,(1)该进气口鼓包位于飞机机身蒙皮平面部位[3],该进气口鼓包凸出机身蒙皮平面部位[3]的表面;(2)进气口鼓包由进气风门[1]和整流罩[2]组成,进气口鼓包在机身蒙皮平面部位[3]上投影轮廓的对称中心线与飞机纵向轴线平行,该轮廓为龟甲形状,进气口鼓包轮廓的左端为龟甲形状的后部,A点为龟甲形状的后端点,进气风门[1]在机身蒙皮平面部位[3]上投影的轮廓为矩形,该矩形位于上述进气口鼓包轮廓的内部,该矩形的前边即为龟甲形状的前边缘,B点为该矩形前边的中点,该矩形的后边与进气口鼓包凸出机身蒙皮平面部位[3]的最高位置对应,过A点和B点的直线为进气口鼓包在机身蒙皮平面部位[3]上投影轮廓的对称中心线,龟甲形状的前边缘与投影轮廓的对称中心线垂直;(3)进气风门[1]的前边通过铰链与机身结构形成铰链连接,进气风门[1]有关闭和打开两个工作位置,当进气风门[1]处于关闭工作位置时,进气风门[1]和整流罩[2]共同构成进气口鼓包;当进气风门[1]处于打开工作位置时,进气风门[1]绕铰链向机身内部旋转α角,构成进气道内流道的一部分,α=10°~30°;(4)当进气风门[1]处于关闭工作位置时,进气口鼓包的型面坐标如下:建立进气口鼓包的三维坐标系:以A点为原点,过A点和B点的直线为X轴,正方向指向右方,即机头方向,以机身蒙皮平面部位[3]内过A点垂直于X轴直线为Y轴,正方向指向上方,以右手法则确定Z轴;以垂直于X轴的10个平行平面截取进气口鼓包的横截面,平行平面的间隔为d=L/10,L是A点和B点的距离,L的范围取500mm~1000mm。每个横截面与鼓包型面相交得到一条型面曲线,从左至右将型面曲线依次编号为1号型面曲线至10号型面曲线;将每条型面曲线等分为9个特征点,1号型面曲线的特征点编号为A1?1至A1?9,依此类推,10号型面曲线的特征点编号为A10?1至A10?9,则每条型面曲线特征点的坐标如下:1号型面曲线特征点的坐标:??A1?1??A1?2??A1?3??A1?4??A1?5??A1?6??A1?7??A1?8??A1?9??X??0.1L??0.1L??0.1L??0.1L??0.1L??0.1L??0.1L??0.1L??0.1L??Y???0.142L???0.105L???0.071L???0.037L??0??0.037L??0.071L??0.105L??0.142L??Z??0??0.006L??0.022L??0.037L??0.043L??0.037L??0.022L??0.006L??02号型面曲线特征点的坐标:??A2?1??A2?2??A2?3??A2?4??A2?5??A2?6??A2?7??A?2?8??A2?9??X??0.2L??0.2L??0.2L??0.2L??0.2L??0.2L??0.2L??0.2L??0.2L??Y???0.255L???0.189L???0.128L???0.066L??0??0.066L??0.128L??0.189L??0.255L??Z??0??0.010L??0.039L??0.067L??0.077L??0.067L??0.039L??0.010L??03号型面曲线特征点的坐标:??A3?1??A3?2??A3?3??A3?4??A3?5??A3?6??A3?7??A3?8??A3?9??X??0.3L??0.3L??0.3L??0.3L??0.3L??0.3L??0.3L??0.3L??0.3L??Y???0.341L???0.252L???0.171L???0.089L??0??0.089L??0.171L??0.252L??0.341L??Z??0??0.013L??0.052L??0.089L??0.102L??0.089L??0.052L??0.013L??04号型面曲线特征点的坐标:??A4?1??A4?2??A4?3??A4?4??A4?5??A4?6??A4?7??A4?8??A4?9??X??0.4L??0.4L??0.4L??0.4L??0.4L??0.4L??0.4L??0.4L??0.4L??Y???0.392L???0.29L???0.196L???0.102L??0??0.102L??0.196L??0.29L??0.392L??Z??0??0.015L??0.059L??0.102L??0.118L??0.102L??0.059L??0.015L??05号型面曲线特征点的坐标:??A5?1??A5?2??A5?3??A5?4??A5?5??A5?6??A5?7??A5?8??A?5?9??X??0.5L??0.5L??0.5L??0.5L??0.5L??0.5L??0.5L??0.5L??0.5L??Y???0.408L???0.302L???0.204L???0.106L??0??0.106L??0.204L??0.302L??0.408L??Z??0??0.016L??0.062L??0.107L??0.122L??0.107L??0.062L??0.016L??06号型面曲线特征点的坐标:??A6?1??A6?2??A6?3??A6?4??A6?5??A6?6??A6?7??A6?8??A6?9??X??0.6L??0.6L??0.6L??0.6L??0.6L??0.6L??0.6L??0.6L??0.6L??Y???0.409L???0.303L???0.205L???0.106L??0??0.106L??0.205L??0.303L??0.409L??Z??0??0.016L??0.061L??0.105L??0.123L??0.105L??0.061L??0.016L??07号型面曲线特征点的坐标:??A?7?1??A7?2??A?7?3??A7?4??A7?5??A7?6??A7?7??A7?8??A7?9??X??0.7L??0.7L??0.7L??0.7L??0.7L??0.7L??0.7L??0.7L??0.7L??Y???0.402L???0.298L???0.203L???0.104L??0??0.104L??0.203L??0.298L??0.402L??Z??0??0.015L??0.059L??0.09L??0.105L??0.09L??0.059L??0.015L??08号型面曲线特征点的坐标:??A8?1??A8?2??A8?3??A8?4??A8?5??A8?6??A8?7??A8?8??A8?9??X??0.8L??0.8L??0.8L??0.8L??0.8L??0.8L??0.8L??0.8L??0.8L??Y???0.364L???0.272L???0.187L???0.094L??0??0.094L??0.187L??0.272L??0.364L??Z??0??0.013L??0.052L??0.063L??0.068L??0.063L??0.052L??0.013L??09号型面曲线特征点的坐标:??A9?1??A9?2??A9?3??A9?4??A9?5??A9?6??A9?7??A9?8??A9?9??X??0.9L??0.9L??0.9L??0.9L??0.9L??0.9L??0.9L??0.9L??0.9L??Y???0.291L???0.218L???0.147L???0.074L??0??0.074L??0.147L??0.218L??0.291L??Z??0??0.01L??0.024L??0.028L??0.029L??0.028L??0.024L??0.01L??010号型面曲线特征点的坐标:??A10?1??A10?2??A10?3??A10?4??A10?5??A10?6??A10?7??A10?8??A10?9??X??1.0L??1.0L??1.0L??1.0L??1.0L??1.0L??1.0L??1.0L??1.0L??Y???0.187L???0.14L???0.094L???0.047L??0??0.047L??0.094L??0.14L??0.187L??Z??0??0??0??0??0??0??0??0??0每条型面曲线上相邻特征点之间平滑过渡,龟甲形状的后端点A与1号型面曲线之间,相邻型面曲线之间以及9号型面曲线与龟甲形状的前边缘之间的型面平滑过渡。 |