CAJ | 학술논문

为保证新研制的导向叶片在发动机上可靠工作，须先对其进行冷效试验，以验证气膜冷却的气动参数、几何参数对冷却效果及涡轮气动性能的影响。试验件结构设计中根据相似原则，采用单层干烧结构，并采用UG参数化建模和装配、间隙分析减小装配误差和干涉，提高了冷效试验效率。试验件内温度场、压力场较好，具有良好的耐温性、密封性；试验件设计中，配合更换试验件耐热材料，较常规水冷式试验件结构简单，且加工周期缩短一半，造价减少约60%。
위보증신연제적도향협편재발동궤상가고공작，수선대기진행랭효시험，이험증기막냉각적기동삼수、궤하삼수대냉각효과급와륜기동성능적영향。시험건결구설계중근거상사원칙，채용단층간소결구，병채용UG삼수화건모화장배、간극분석감소장배오차화간섭，제고료랭효시험효솔。시험건내온도장、압력장교호，구유량호적내온성、밀봉성；시험건설계중，배합경환시험건내열재료，교상규수랭식시험건결구간단，차가공주기축단일반，조개감소약60%。
To make turbine nozzle work reliably, cooling effectiveness test should be firstly conducted to study the aerodynamic effect and geometric parameters of film cooling on cooling effectiveness and turbine aerodynamic performance. Based on the principle of similarity,the test specimen adopted simple deck dry combustion constructure. UG parameterized modeling and assembling as well as clearance analysis was ap-plied to reduce the assembling error and interference, and thus improved the efficiency of cooling effective-ness test. Preferable temperature and pressure fields were obtained inside the test specimen, which were of good hot-resistance and sealing performance. Matched heat-resistant material made its common wa-ter-cooling construction simpler, shortened half of its process cycle and reduced approximately 60% of its cost.