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约找到 737 条结果,耗时 0.292 秒
新设计的火箭
west_0830
16年5个月前
回复于
喷气推进
内容:金属的导热性会使的.原料会在边缘的化学反应加快很多.所以介意楼主在做之前做好内襞的隔热保护...而用木头做喷口这和
金属发动机
是明显的不配的..金属做的火箭喷口应当尽力做小而提升能量使用率.而这样这样的结果是压力和温度急剧升高会使的燃料反应速度也变的迅速急快和不稳定而一但影响了物理强度失去稳定就会带来爆炸的危险
真正的全金属复用发动机.难以企及的高效
ABC
16年10个月前
回复于
喷气推进
内容:模型火箭技术极发达的欧美可以回答,他们高性能火箭基本都用商品
金属发动机
.
简单讲一下固体火箭发动机的点火
拔刀斋
8年6个月前
回复于
喷气推进
内容:自行建立点火压还会使先点火的区域先烧完,然后壳体局部过热甚至烧穿,以前在小的非
金属发动机
上遇到过。
回 10楼(chaozhou) 的帖子
warmonkey
11年6个月前
回复于
喷气推进
内容:比如说你刚刚发帖说的内容,认为非
金属发动机
壳体通常不会爆炸,实际上是不成立的。
回 5楼(虎哥) 的帖子
小哈_abc
12年5个月前
回复于
科创基金
内容:搭载设备获得火箭姿态数据能够进一步了解火箭发射过程,提高业余火箭设计的科学性航电设备传感器部分也能用于探空气球等方面的研究电子开伞设备能够提高火箭的安全性,确保实验安全与回收【具体方案】发动机方面:
金属发动机
,上位机编写,Android应用开发经验,负责航电部分设计张斌:规划过数次发射试验,负责火箭结构朱稳稳:具备发动机燃料制备经验,参与数次发射活动,负责发动机设计【已准备材料】GPS模块*2 数传模块*1
金属发动机
第一个自主设计的50mm铝合金火箭发动机及试车结果
人生如天气
2年5个月前
发表于
喷气推进
动手实践: 实验报导
内容:直到现在,毕业实习了每天八小时,晚上有空就开始学建模,设计自己的第一个
金属发动机
了。
KCSA 萬戶-Ⅰ型火箭 實時信息集合帖
焓熵`
13年3个月前
回复于
喷气推进
内容: 硝酸钾,无水葡萄糖,内孔用模具(2根铝棒及1根玻璃纤维棒)均已到位 无线电接收机已经到位 校级记者团已经联系到位 3.未完成的工作,及未到位的硬件设施或原料:
金属发动机
用,Φ55mm铝管未到 组装用M4*6/12未到位 开伞用弹簧未到
金属发动机
密封圈未到 160M信标原料未到,组装测试仪器(频谱仪)未到,组装细节未全明 爆破插销未做成成品
新人入坑,加入科创
Marx
5年0个月前
发表于
喷气推进
内容:的燃烧实验,,,,,当时还没有禁止KNSU的在家里瞎搞然后就去试车了(😖疯了疯了)这次真的是乱搞完全没有安全意识lz差点挂了上面一个是之前的试飞这是为什么科创静止氯酸钾好的,揭晓来是现在喷气最好的铝制
金属发动机
的图片
兔年最后一射失败总结
wsygz08
13年0个月前
发表于
喷气推进
内容:而且这样的做法也不严谨,违反了安全操作规程,特别是
金属发动机
,这是不可取地。
CR-1K火箭测试~成功起飞!(视频)
3ha510
15年10个月前
发表于
喷气推进
内容: 自从
金属发动机
遇上故障以后,我就开始再次将注意力转向PVC,在科创浏览了几天,得到了很多经验之后,我又一次来到了我的临时实验台,开始了新的制作。
第一个金属火箭试飞
乖老汉
13年8个月前
回复于
喷气推进
内容:建议大家不要再用装饰管做发动机,这和
金属发动机
没有可比性,更不是一个概念。
火箭模拟计算器,包括飞行距离,推力,加速度等等.
一飞冲天
16年5个月前
回复于
喷气推进
内容:引用第6楼usercim于2008-08-28 19:45发表的 :说实话非常受不了您说话的口气.好像一个资深的专家似的.喷口压力大概150000,
金属发动机
应该在200000以上.喷气速度一般用1200
真正的全金属复用发动机.难以企及的高效
ABC
16年10个月前
回复于
喷气推进
内容:如果可以当然非常好,但毕竟是一次性的,普通材料的发动机的一致性差,质量(不是重量)控制困难,比较费时,要做好更费时,优点是制作容易成本低安全性好.
金属发动机
不是每个人都能做的,需要一定的金工知识,结构受力知识和火箭理论知识
发个未完成的多级火箭 持续更新
black
14年3个月前
回复于
喷气推进
内容:对于一般钢结构的发动机足够了没必要使用一些了解尚不明确的类似于高氯酸铵这样的燃料 让LZ盲目使用这种燃料是不负责任的就算是AP燃料也是要经过严格的压药制柱工艺 手工是很难满足在几个Mpa下 燃料平稳的端面燃烧的效果最后就是要注意
金属发动机
回 6楼(leeqingyang) 的帖子
拔刀斋
13年1个月前
回复于
喷气推进
内容:对于
金属发动机
,主要的安全隐患在于爆炸产生的破片。
一台金属发动机引发的……
lilith
16年0个月前
回复于
喷气推进
内容:楼主还是装药测试一下吧,因为这是论坛第一个采用双燃烧室的
金属发动机
。
加工金属拉瓦尔喷管
拔刀斋
14年4个月前
回复于
喷气推进
内容:第二,在和全
金属发动机
强度相当的情况下,重量大为降低。
成功的发射,失败的数据采集
彩虹之巅
12年0个月前
发表于
喷气推进
内容:[s:241] 点击此处查看视频火箭数据:32MM*100MM
金属发动机
KNSU+RNX混合燃料装在内径28MM的PVC隔热层内。
金属发动机 用kndx药柱 炸膛可能性咨询
lilith
15年11个月前
回复于
喷气推进
内容:KNDX不适合
金属发动机
,建议改KNSU.爆炸的可能性几乎没有,至少我没有看过KNDX/KNSU窜火。
固体发动机试验安全标准的格式、项目的建议和讨论
ksama
13年1个月前
回复于
喷气推进
内容:就是发动机试验测试成本问题 发动机被制造的性能越大 试车带来的成本也就越高 包括燃料 发动机损耗 与测试场地的问题 建议试车应该采取以下安全措施:1 大推力火箭发动机试车(比如E级以上)要制作试车架2
金属发动机
深埋以解决发动机如遇以外爆炸的破片问题另外
这是谁啊?新疆“90后”研制首台非金属发动机打出马赫环
猎鹰
10年2个月前
回复于
喷气推进
内容:早在两年前就用非
金属发动机
弄出马赫环的默默路过。。。。。。。。
有没有人玻纤布缠绕或者尼龙布缠绕浸渍环氧树脂制作耐压壳?
拔刀斋
14年0个月前
回复于
喷气推进
内容::RT,圆柱形箭体的耐压问题,可以归根为高刚性和抗拉强度的材料在切向的拉力问题,或者说,如果采用内模缠绕成型的话,可以回避如
金属发动机
喷嘴的剪切力问题,普通PPR PVC管材的耐热和重量问题;而且就工艺来讲
[原创]挑战技术极限——微型制导火箭DIY
black
15年3个月前
回复于
喷气推进
内容:我一直在看,其实我想说的是,如果要燃烧7S基本上用那种小小的固体
金属发动机
是不可能的......看了LZ的制导思路感觉比较清晰,实际操作的时候要考虑到很多。
通过内弹道模拟得到的简单结论
usercim
14年1个月前
发表于
喷气推进
内容:总结:非
金属发动机
使用KN燃料,比冲很难达到100以上,但是可以轻易达到80以上,因为工作压强在1Mpa以上就可以了。
KC-目前最长一条、弟一个三.级火箭发射花紫
jrcsh
13年7个月前
发表于
喷气推进
内容:这是我最喜欢的部位了 不但美观而且解决了固定问题 这个头部是用开锯齿的方法在用封箱胶固定而成 为了减轻三.级发动机工作时对外壳的瞬间冲击力我们在头部放了些...填充物 顶着三级发动机来减轻冲击力 左边是一级的
金属发动机
已经装,这次的教训~~~~最好还是不要在晚上发射 目前 6.5日下午 我们再次回到现场 寻找~~~~残骸 无果(也有点结果~~~~每人都给树枝,刺刮伤不了~~~~痒痒痒痒痒痒痒痒痒痒痒痒痒痒痒痒痒)这次未能回收
金属发动机
金属材料的性能表【转】
123123123
13年7个月前
发表于
机械与工具
内容:做
金属发动机
也许有用名称 元素符号 比重克/厘米3 熔点(%) 线膨胀系数(1℃) 导电率(%) 拉抗强度σъ(公斤/毫米2) 伸长率δ (%) 断面收缩率Ψ (%) 布氏硬度(HB) 色泽 银 Ag
关于Standard-1i 发动机的悲剧。。。。。
lilith
14年1个月前
发表于
喷气推进
内容:最近在进行Standard-1i (标准-1 i 级)
金属发动机
的设计工作,目的是设计一种性能强劲的标准
金属发动机
,并在论坛范围内推广,因此设计的指导思想是,加工尽量简单,重复性好;同时作为一种推荐给大家使用的发动机
火箭设计制造说明
阿丕
17年9个月前
发表于
喷气推进
内容:火箭的难点之一是推进剂,但是最大的难点是如何获得与计算数据相近的性能.一般情况下,如果推进剂确定了,那么就要从全箭技术参数着手,包含重量,载荷等等.单独提供部分数据的情况下想要得到整体性能,不可能.3.即使是采用
金属发动机
外壳
发一个自己的设计 自旋稳定火箭
kight11
13年10个月前
发表于
喷气推进
内容:把点火头下面电线和点火管壁的间隙填满快燃火药.点火时,点火头打火,点燃点火管里的快然药,发动机壳体内温度和压力立刻升高,瞬间点燃推进剂.推进剂还没想好用什么,要求燃速快,产气量大,最好没有烟.由于采用
金属发动机
金属发动机 用kndx药柱 炸膛可能性咨询
warmonkey
15年11个月前
回复于
喷气推进
内容:KNDX不适合
金属发动机
,建议改KNSU.爆炸的可能性几乎没有,至少我没有看过KNDX/KNSU窜火。
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