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约找到 7826 条结果,耗时 0.326 秒
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萌新设计的第一个发动机图纸
拉格朗日L2点
2年5个月前
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喷气推进
内容:萌新就先别急于制作发动机,要先把基础知识和理论搞懂才行,不然你无法保证发动机的安全性与性能,先多看看KC喷气推进和火箭
燃料
版大佬们的贴子吧,看完了基本上就能开始了!
回 1楼(xj198398xujing) 的帖子
lilith
14年3个月前
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喷气推进
内容:隔热层的话,你的是单节
燃料
,问题不大,我这里就无爱了,国外用的是酚醛树脂管,性能很好,国内买不到,用纸凑合了。
玉兔2A火箭首次试射点火不成功的原因分析
bkh123
13年6个月前
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喷气推进
内容:点火只引燃了很小的部分,而这个部分没能引燃
燃料
,如果点火头扩大引燃面,只有大面积引燃,才会真正引燃整个药柱.
Re:Re:在普通火箭里加硝化棉  可否?
侧卫007
14年7个月前
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喷气推进
内容::好像冲压发动机就是利用
燃料
燃烧后产生的瞬间负压吸进气体的,就是在最后的瞬间是负压的可以理解哦。。。
【猜想+求助】关于电磁铁+弹簧做横纵向分离器的猜想和关于水压试验、碳纤维管的问题
arminarlart33
8年1个月前
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喷气推进
内容:水压试验什么的,,,,一次试车代替就好,最大喷燃比好好设计一下,来确定最高工作压强,用最靠谱的
燃料
,试车成功就是能用,炸了就是不行。
【事故报告】knsb轰燃致手部二级烧伤
20!Dopaminor
8个月22天前
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喷气推进
内容:这种
燃料
以前每年都骂,被骂了又说这边的人什么什么,有些人一气之下反而更一意孤行...侥幸心理也很多,觉得自己比出事的人谨慎就行还有一些情况,如某些圈子里会互相“承诺”这很“安全”放心搞,也不知道出了那么多大大小小的事之后他们之间有人负过责不从事危险行为
峰值推力25.7kg的KNSB氧化铁304无缝钢管固体发动机
陈三百
1年6个月前
发表于
喷气推进
动手实践: 实验报导
内容:45mm内径:39mm燃烧室长度:160mm直径:39mm喷口喉部:6mm药柱长度:150mm直径:36mm孔:5~6mm(原本是长160mm、孔10mm,但在浇筑过程中塌了)发动机单独重量0.80kg
燃料
重量
【在线直播】造箭(8:30更新)
warmonkey
13年8个月前
发表于
喷气推进
内容:设计目标:射高>=500m发动机设计:型号SRM3080A利用手头32mm 1.6MPa PVC管制作壳体,
燃料
使用热熔法压铸KNDX。
【廣局神作】石墨喷喉-6061中型火箭发动机
焓熵`
12年10个月前
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喷气推进
内容:噴口隔熱結構示意圖 主體隔熱結構示意圖 堵頭隔熱結構示意圖 此外,75規格藥柱模具已經就位,中型規格發動機正在籌備中………[s:262] 另注:此台發動機空重3.5kg,預計填裝3.2kgRNX-HTPB
燃料
200元一个10瓦燃料电池
power_rdx
7年1个月前
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跳蚤市场
内容:引用 RodTech:引用 power_rdx:想使用这个“便携
燃料
电池”是不是还得背个氢气瓶子?
【RNX】【星孔】【真空仓】【航电】【3D打印】记一个未完成的探空火箭项目
Ma3.02的守望
6年4个月前
发表于
喷气推进
内容:鉴于制造方便原料易得,
燃料
定为RNX,发动机内装150mm药柱*2,取隔热层内层面积为最大燃烧面积,则为500cm^2,
燃料
质量为732g,比冲取90s,总冲645N*s。 ,后由于RNX配方变更为GCC135+GCC137,
燃料
特性变化,修改喷燃比为950,压力约4.1Mpa,喷喉直径8mm。 ,之所以说这个发动机的金属部分是和热流完全隔离的,体现在:
燃料
棒侧面隔热层 ;堵头端面环氧粘合 ;喷管与
燃料
棒粘合 ;喷管材料绝热性好 几个方面。 ,:
燃料
棒的制造耗费了相当大的精力,使用3D打印芯模的方法成功进行了制造,验证了3D打印可溶性芯模的可行性。,制造
燃料
棒需要的设备有:真空仓(自制);超大注射器(鼻饲用);震动座;加热装置(可选) 具体制造过程:1、制造氧化剂粉并充分干燥,干燥不充分会导致成品
燃料
棒品质不佳,燃烧慢残渣多2、芯模充分涂抹脱模剂
[原创]我也贡献下,谈谈我对火箭稳定性的研究.
ABC
16年8个月前
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喷气推进
内容:还有,我不赞成加铝粉,因为要使
燃料
中的铝料参与燃烧是有难度的,一般人加了反而会使性能变坏
星火计划-试车失败分析(科创基金资助项目)
虎哥
9年0个月前
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喷气推进
内容:研制一种新
燃料
,建议先进行燃速,压力指数等基本参数的测定,可以设计小型试验发动机来做。
【重磅炸弹】50MM暴力发动机粉墨登场
lilith
15年11个月前
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喷气推进
内容:要是改进
燃料
还可以考虑`~~~~~不然浪费的太不值得了`~~~~~不止是PVC,甚至更好的PPR,最多也只能到2MP,而KNDX充分发挥需要大约6MPA的压力,PVC是不能满足的,关键的关键是PVC无法做大
真正的全金属复用发动机.难以企及的高效
拔刀斋
14年11个月前
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喷气推进
内容:除非在堵头和
燃料
之间填上大段(2cm以上)的堵漏王粉末作为密封填料,这个做法仅限地面试车测量数据,飞行嫌太重。
[重磅]SRMS Solid Rocket Motor Simulator 两相流内弹道软件发布贴
LS
4年10个月前
回复于
喷气推进
内容:用cpropep計算
燃料
參數如下圖:取比熱比1.25,考慮到損失,特徵速度取1000m/s,其餘數據如圖所示。
关于PPR管道
usercim
14年2个月前
回复于
喷气推进
内容:需要注意的有以下几点:1.
燃料
要合格,不含水分是成功的起点。
V2导弹
艺术就是爆炸
13年7个月前
回复于
喷气推进
内容:其实我也不知道,我的设想是:把酒精换成煤油,改变氧化剂与
燃料
的比例,增加氧化剂,取消过氧化氢装置,增加拉喷,,把战斗部换成降落伞(虽然我一点都不想换,但是战斗部要近一吨的能采,桑不起啊)气体阀门加装一个装置
KC-目前最长一条、弟一个三.级火箭发射花紫
helium
13年8个月前
回复于
喷气推进
内容:引用第18楼zzlzhang于2011-06-06 00:15发表的 :LED+蜂鸣回收,但最后还是没有找回来,
燃料
用KNDX下面一级用纯白的,上面一级用碳化的,最高一级用PVC的发动机,牵引伞用.点火采用两个延时电路
按分类更新:液体火箭(roboter、leeqingyang、dr-sama固液混合)合集
拔刀斋
13年3个月前
回复于
喷气推进
内容:38472leeqingyang组建沈阳地区实验室 搞火箭 XXXXXXXXXXXXXXXXXXXXXXXX/t/35169好吧 来弄一弄液体火箭吧 XXXXXXXXXXXXXXXXXXXXXXXX/t/35316液体发动机低压
燃料
装机测试
关于金属发动机普及化方案的理论性探讨。
eifheowvd
13年0个月前
回复于
喷气推进
内容:金属发动机的优势就在于能够承受更高的工作压力,这样就可以使用更猛的
燃料
,以及提高喷燃比。
大白鼠啊大白鼠,终于体会到你的感觉了~~~
vol2088
15年6个月前
回复于
喷气推进
内容:,11CM的烧了8秒,可能是由于测燃速的时候点的面积大了,不过总体上来说还是优秀的KNSU,性能很变态,只要有好的喷口,第一次发射双暴是因为喷口太小点火头点完火以后堵住了喷口,然后火箭弹跳+双暴,两个
燃料
住炸了出去
汇报一下我们社团的活动,及建立物联网的设想
smith
8年3个月前
回复于
喷气推进
内容:这种无人机的续航能力可以翻倍如果能开发廉价稳定一次性的版本,外壳使用塑料,
燃料
RNX,加个低廉稳定,那么对于一些需要长滞空时间的无人机行业也是一个革命
75mm探空火箭研发过程
LShang001
9年5个月前
回复于
喷气推进
内容:第一次地面热试车数据: 药柱总长26cm,内孔直径1.5cm,
燃料
外直径4.6cm 总冲:1198Ns(87%J); 平均推力:131N; 最大推力:375N; 比冲:1901.59Ns/kg (猛击看大图
我们的科创
明月几时有
12年0个月前
回复于
社区公务
内容:孩子八岁了,对航空,航天很感兴趣,经常问我一些有深度的问题,最近还要我给他制作火箭,还和我谈论诸如火箭
燃料
的制造和火箭的重心的问题。
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