CAJ | 학술논문

为了解决长征系列运载火箭增压输送系统零件成形过程中的难题，综述了运载火箭增压输送系统研制瓶颈，并针对异形接头、三通、波形管等零件的液力成形及其在航天中的应用进行了分析，通过数值模拟分析了进给量、内压、胀形方式对零件成形的影响，最后确定了零件的加载路径，并给出了该技术在航天制造领域推广应用的实际意义。
위료해결장정계렬운재화전증압수송계통령건성형과정중적난제，종술료운재화전증압수송계통연제병경，병침대이형접두、삼통、파형관등령건적액력성형급기재항천중적응용진행료분석，통과수치모의분석료진급량、내압、창형방식대령건성형적영향，최후학정료령건적가재로경，병급출료해기술재항천제조영역추엄응용적실제의의。
In order to solve the forming process problem of the pressure delivery system parts in Long March series carrier rockets, hydroforming technology was used in this paper. Traditional forming problems of pressure delivery system parts were reviewed. Besides, hydroforming technology in forming special-shaped connectors, three way pipe, waveform-shape tube and its advantage in aerospace were analyzed. By using numerical simulation, forming parameters such as feed rate, internal pressure and bulging methods were researched in experimental test. Finally the right load path was determined and the practical significance of hydroforming technology in aerospace manufacturing was given.