东京热av网站,av一二三线,女女同性AV一区二区二,久艹在线观看视频

您好,歡迎光臨濟南泉誼機械科技有限公司網(wǎng)站!

服務(wù)熱線

李經(jīng)理13695310799
熱門搜索:軍事模型 航天模型 飛機模型 坦克模型 變形金剛模型 鋼雕模型
您當前所在位置 首頁>>新聞動態(tài)>>行業(yè)資訊

航空模型發(fā)動機制作要點

發(fā)布時間:2022-01-31 來源:http://m.z4358.cn/

航天模型,顧名思義是仿航天器外形制作的一種可回收模型,隸屬于航空航天模型,是供運動用的一種不載人的飛行器,其動力為模型火箭發(fā)動機,即一種微型固體火箭發(fā)動機。由于航天模型多呈火箭狀,故通稱模型火箭。
Aerospace model, as the name suggests, is a recyclable model made by imitating the shape of spacecraft. It belongs to aerospace model. It is a non manned aircraft for operation. Its power is model rocket motor, that is, a micro solid rocket motor. Because most Aerospace models are rocket like, they are generally called model rockets.
換句話說,模型火箭是指不利用氣動升力去克服重力,而是靠模型火箭發(fā)動機推進升空的一種航空模型;它裝有使之安全返回地面的以便再次飛行的回收裝置;為確保安全,它的結(jié)構(gòu)部件必須由非金屬材料制成。
In other words, model rocket refers to an aviation model that does not use aerodynamic lift to overcome gravity, but relies on model rocket engine to promote lift off; It is equipped with a recovery device to safely return to the ground for re flight; In order to ensure safety, its structural parts must be made of non-metallic materials.
大型航空模型制作
模型火箭雖小,然而它要靠模型火箭發(fā)動機推進才能在大氣中飛行。因此,設(shè)計和制做模型火箭需要多方面的知識,如空氣動力學(xué)、火箭飛行力學(xué)等。要研究模型火箭在空氣中飛行的穩(wěn)定性和空氣對它的阻力;要分析火箭的飛行軌跡,計算它的飛行高度;有條件時,還可以對模型火箭進行風(fēng)洞試驗,確定火箭更佳外形;進行模型火箭發(fā)動機靜態(tài)性能測試試驗,測量推力和工作時間,計算總沖量。
Although the model rocket is small, it depends on the propulsion of the model rocket engine to fly in the atmosphere. Therefore, designing and making a model rocket requires a variety of knowledge, such as aerodynamics, rocket flight mechanics and so on. To study the stability of the model rocket flying in the air and the resistance of the air to it; Analyze the flight path of the rocket and calculate its flight altitude; When conditions permit, wind tunnel tests can also be carried out on the model rocket to determine the best shape of the rocket; The static performance test of model rocket engine is carried out, the thrust and working time are measured, and the total impulse is calculated.
在發(fā)達國家的一些高等學(xué)校里,在理工科有關(guān)的課程上,甚至一些中學(xué)的物理課上,教師們經(jīng)常以模型火箭作為講課的題材,并在此基礎(chǔ)上指導(dǎo)學(xué)生開展一些課題研究和模型火箭的制作。
In some colleges and universities in developed countries, in science and engineering related courses, and even in physics classes in some middle schools, teachers often take model rockets as the subject matter of lectures, and guide students to carry out some subject research and model rocket production on this basis.
- 亚洲精品人妇99| 欧美日韩精品在线视频| 欧美日韓性视頻在線| 亚洲精品舔舔舔舔| 免费啪啪啪成人精品网站| 久久日www| 日本亚洲欧美| 一区 欧美 国产| 五月丁香六月久草四区三区二区一区| 亚欧一二三区| 朴妮唛在线观看| 西野翔亚洲综合久久| 亚洲欧美激情爆发| 精品久久一区二区三区第一页| 欧美淫语一区二区三区| 亚洲欧美一区二区三区成人片| 91鸡吧艹逼| 插好爽视频| 法国精品无码人妻| 香蕉视频六区在线观看| 黄日本不卡一区| 人妻熟女一区二区aⅴ向井蓝| 日韩国产欧美色综合| 鸡巴艹逼啪啪视频| 99无码中出| 最新久久久久亚洲AV无码专区体验| 久久青香蕉视频| 亚洲欧美另类777777| 中文字幕一区二区三区干哥| 欧洲黄色影院| 亚洲成人色色网| 一区二qu在线看| 黄色片香蕉网站| 亚洲欧美一区二区三变态另类| 色欲国产高清乱码| 大香蕉土豆精品视频网| 日韩欧美在线观看一级| 国产精品久久午夜伦理| 色呦呦欧美大全| 操逼美女国产av| 四虎操老逼视频|