CAJ | 학술논문

空间站等大型载人航天器因体积大、在轨时间长容易受到空间碎片撞击，作为应对措施，人们提出利用空间碎片在轨感知系统实时监测撞击事件，撞击点定位是在轨感知系统的基本任务之一。为此，本文首先测量了加筋板内sO波波速，根据波速变化规律提出名义波速的概念，在此基础上将虚拟波阵面法推广用于载人密封舱结构，实现对空间碎片撞击事件的精确定位。最后，分别进行了碎片云高速撞击周期性加筋板和空间站小柱段舱壁枪击定位试验，试验结果表明：可将密封舱内声发射信号传播速度视为定值即“名义波速”，在此基础上虚拟波阵面法可推广用于密封舱结构。
공간참등대형재인항천기인체적대、재궤시간장용역수도공간쇄편당격，작위응대조시，인문제출이용공간쇄편재궤감지계통실시감측당격사건，당격점정위시재궤감지계통적기본임무지일。위차，본문수선측량료가근판내sO파파속，근거파속변화규률제출명의파속적개념，재차기출상장허의파진면법추엄용우재인밀봉창결구，실현대공간쇄편당격사건적정학정위。최후，분별진행료쇄편운고속당격주기성가근판화공간참소주단창벽창격정위시험，시험결과표명：가장밀봉창내성발사신호전파속도시위정치즉“명의파속”，재차기출상허의파진면법가추엄용우밀봉창결구。
Due to their large volume and long endurance in orbit, large spacecrafts such as space station are vulnerable to space debris. Onboard monitoring system based on acoustic emission technology has been presented as a countermeasure. Firstly, the velocity of sO wave in stiffened plates is measured, and the concept of nominal wave velocity is put forward. Then, the virtual wave front source location method is extended to pressurized cabin. Finally, experiments are carried out both on stiffened plate .and pressurized cabin using a two stage light gas gun and an imitation gun. Results indicate that the wave velocity of acoustic emission in pressurized cabin can be assumed as nominal wave velocity, and the virtual wave front source location method can be extended to pressurized cabin.