關於國內的匿蹤型二維向量噴嘴原形設計及開發

中科院委託國內的成功大學研究二維噴嘴,2013年左右的論文~

可能未來會使用在台灣國產的UAV上面~

http://ir.lib.ncku.edu.tw/handle/987654321/127024
匿蹤型二維向量噴嘴原形設計及開發(III)-總計畫及子計畫一：二維向量噴嘴之向量致動機構設計開發 2013~2017

http://ndltd.ncl.edu.tw/cgi-bin/gs32/gsweb.cgi/login…
二維向量噴嘴之流場及平板受力模擬分析研究 2013~

( 注意到旁邊的連結文章，都是向量噴嘴的研究 )

Title: 匿蹤型二維向量噴嘴原形設計及開發(III)-總計畫及子計畫一：二維向量噴嘴之向量致動機構設計開發
Other Titles: Thrust-Vector Actuating Mechanism Design and Development of a Two-Dimensional Nozzle
Authors: 賴維祥
Contributors: 航空太空工程學系
Keywords: 二維向量噴嘴
致動機構
推力向量
匿蹤技術
2D Nozzle
Actuating mechanism
Thrust vectoring
Steath technology
Date: 2012
Issue Date: 2013-04-01 10:48:24 (UTC+8)
Abstract: 本研究計畫主要在研製二維向量噴嘴，根據中科院一所指定之流量(約17.4 lbm/sec) 及壓力恢復係數為0.95 來設計二維向量噴嘴。依其工作需求分成上下30 度， 左右 15 度，角度速為45 度/sec。以求得飛機短場起降(V/STOL)之目的，並利用二維向量噴嘴的特性達到減少紅外線影像截面(IRCS)的功能，在先進隱形戰機上有其重要性。本總計畫之總時程為四年，由賴維祥教授主持，並召集相關專長之教授，組成研究團隊共同研發。第一年已完成資料收集與初步設計構型，並完成一具1/2 尺寸模型，進行簡單的冷流場試驗與模擬之速度場分佈比對。第二年，主要工作為模擬的部份，己完成動態網格的建立，並與文獻比對結果一致，以及進行暫態的流場分析，在進行至第六秒時，其結果與穩態流場一致。此外，亦提供中科院一所一具全尺寸二維噴嘴模型。本計畫為總時程之第三年，主要完成二維向量噴嘴設計與硬品製造及初步試驗。最終目標是在第四年後，完成二維向量噴嘴系統之展示驗證，並提供一具完整金屬模型及控制系統（含晶片）。其功能需包含-15、-10、-5、0、5、10、15 度七種不同的擺動角，並將轉段接的最佳化設計、不同展弦比之正方形噴嘴紅外線輻射量、建立圓錐形噴嘴與二維噴嘴紅外線信號比較，等相關技術轉移給中科院作後續與渦輪引擎系統之整合，成為更良好飛行性能之系統。
The objective of this project is to design a two-dimensional nozzle according to the specification assigned by CSIST, and its mass flow and pressure lose are about 14.7 lbm/sec and 0.05 respectively. The required pitch angle is 30 degree and yaw angle is 15 degree; and the required angle velocity is 45 deg/sec. This technique is very important in developing new generation air-force, the specific of two dimensional vector nozzle can reduce IR, and make the aircraft to vertical and/or short take-off and landing (V/STOL). The total duration of this project required four years, the prototype design and half scale model were completed in the first year, and compared the result of simulation and experiment. In the second year, the objective of this project is simulation. Include crate a dynamic mesh and transient flow analysis, beside a mockup (either metal or non-metal) is provided in the second year efforts on this transition section. There is the third year of this project. A two-dimensional nozzle system would be manufactured, and would make some preliminary test in this year. The main objective is to provide a two-dimensional nozzle system with its test results and verification, the full scale mockup(metal) and control system (with chip) would be included, after four years. This nozzle must achieve -15、-10、-5、0、5、10、15 seven different swing angle. Some technique will be provided after four years, like the optimal design of transition section, infrared radiation of the square nozzle in different aspect ratio, compare with the infrared signal from two-dimensional nozzle and conical nozzle.