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约找到 258 条结果,耗时 0.296 秒
RNX喷口如何设计
猎鹰
10年8个月前
回复于
喷气推进
内容:其实
固体燃料
没必要用这么麻烦的办法计算,直接用喷燃比就能求出工作压力。
新人大家支持一下吧 请问这种烟花火箭用的是什么燃料(一种白色固体燃料)
焓熵`
14年4个月前
回复于
喷气推进
内容:本人觉得这种
固体燃料
的抛射效果很值得推荐!
RJ-2号KNSB微型探空火箭首飞
ClCl杰
1年1个月前
发表于
喷气推进
内容:锐箭2号(RJ-2)搭载了自研塑料机 R -1,使用KNSB
固体燃料
下面是发动机试车视频电子秤出现故障,未能采集到推力,估计推力超过了50N,推力持续时间大约一秒火箭采用侧盖机械开伞下面是火箭试飞的视频第一视角阵地相机视角火箭飞行高度大约
【高清无码大图】石蜡基燃料的危险性讨论,及液氧石蜡爆轰危险的警告
vip2005pig
10年9个月前
回复于
喷气推进
内容:以硝酸钾为氧化剂的
固体燃料
添加少量石蜡,由于石蜡沸 ...嗯,俺在BP中加了液体石蜡后的情况就是你说的这样,液体石蜡重量加到7%后,烟很黑,像是在烧橡胶,由于不加缓燃物的BP已经通过了试车,目前已经停止往
谷歌Lunar X 奖第一个将机器人送上月球表面的团队将获得2亿美元大额奖金
hchc0834
9年10个月前
回复于
喷气推进
内容:用
固体燃料
.直径20cm..长2m多大药量大概就可以了吧..
【理论贴】关于提高固体火箭发动机效率的讨论
kuanglong7
14年10个月前
回复于
喷气推进
内容:但我接触的是制式火箭发动机,高能
固体燃料
,发动机壳体要在很长时间里承受高温的同时还要承受很高的压力,纸是解决不了问题的。
火炬式点火器(转)
跑来跑去
15年0个月前
发表于
喷气推进
内容:,点火器的可靠性是其能够正常工作的前提条件,是
固体燃料
冲压发动机的关键部件之一。,目前,
固体燃料
冲压发动机地面试验使用的点火器主要有火药点火器及火炬式点火器。,相比之下,火炬式点火器用于
固体燃料
冲压发动机地面试验的优势是显而易见的。,作者简介:刘巍(1980一),男,博上生,研究
固体燃料
冲瓜发动机技术。,,进而完成
固体燃料
冲压发动机的点火。
能力考验之改错题测试:使用液态氢是美国人登月造假的证据
猎鹰
9年8个月前
回复于
喷气推进
内容:你说的
固体燃料
基本上不会用,只是用于助推器。
【水】【原创】简单的分析一下业余火箭发动机的技术路线
154454496
5年0个月前
回复于
喷气推进
内容:www.kechuang.org/t/82614,致敬):配方(可行性实验,未优化):硝酸铵75%亚铬酸铜5%聚丙二醇4000 10.5%蓖麻油5.2%HDI三聚体(手头只有这个)4.3%上午搞完物理题闲着没事,把硝酸盐系的
固体燃料
写完了
【高清无码大图】石蜡基燃料的危险性讨论,及液氧石蜡爆轰危险的警告
拔刀斋
10年9个月前
回复于
喷气推进
内容:以硝酸钾为氧化剂的
固体燃料
添加少量石蜡,由于石蜡沸点低于硝酸钾分解温度会蒸发吸热影响燃烧,效果类似加水,降低燃速或熄火。
回 13楼(xj198398xujing) 的帖子
猎鹰
11年11个月前
回复于
喷气推进
内容:在燃烧室的设计上我的容积在初始状态下略低于标准容积,大约在
固体燃料
烧了一半是达到标准容积。
[再次更新]某的第一条固液混合发动机.[视频+多P]
xj198398xujing
13年5个月前
回复于
喷气推进
内容:不过这里提个小建议石蜡做燃料这个似乎不是很好 石蜡的熔点很低融化后容易被燃烧室气流带到燃烧室外才燃烧 这样使发动机效率下降 所以LZ的发发动机基本没有形成比较有效的燃烧 喘燃非常严重建议更换成树脂类燃料并固化 还可以在
固体燃料
中添加少量氧化剂使燃料能够保持缓慢的自持燃烧这样就能用加减液体氧化剂来控制发动机的燃烧情况
[提问] 关于固液火箭
ltl
10年6个月前
回复于
喷气推进
内容:相当于严重富氧的
固体燃料
。
能力考验之改错题测试:使用液态氢是美国人登月造假的证据
猎鹰
9年8个月前
回复于
喷气推进
内容:引用 hchc0834:1虽然国家说1级火箭都是使用煤油作为燃料..这个是作为减少成本的做法..还有真实性有待确定..我们毕竟拿不到真实的配方..
固体燃料
作为火箭都是中程导弹以及洲际导弹在用..以及洲际核弹在使用
关于拉瓦尔喷口的一个疑问
大蒜
15年5个月前
发表于
喷气推进
内容:还有就是,我们的这种
固体燃料
发动机的喷口速度能达到音速?
固液火箭发动机首次全功率试车
猎鹰
11年11个月前
发表于
喷气推进
内容:www.kechuang.org/t/46322 https://www.kechuang.org/t/45130 [hr][hr]一条华丽的分割线后现在开始今天的话题了 燃料的介绍: 氧化剂:气态氧(由借来的钢瓶供应)
固体燃料
棒,聚丙烯的价格较为低廉我购买的价格为18元/kg,这价格远低于
固体燃料
。
除了固体火箭发动机我们还能做什么?
拔刀斋
15年0个月前
回复于
喷气推进
内容:固体火箭里装一截药柱,装一截蜡烛石蜡气化后混入火箭燃气,高温裂解后成为贫氧燃气引用第23楼普通用户于2009-07-29 13:06发表的 :
固体燃料
必然是贫氧的,燃料先不完全燃烧,产生的燃气再与空气混合二次燃烧
中国业余火箭执行标准
jrcsh
11年7个月前
回复于
喷气推进
内容:C:金属发动机 使用液体燃料 或含有含能物质的
固体燃料
,起飞总质量大于5公斤,请提前3个月公示设计图纸 航电图纸回收方案 应急预案 发射场地GPS信息 宣传手册 同时报请所在地军区航空管制办公室予以空域使用
55mm全金属KNSB发动机
ww
1年7个月前
回复于
喷气推进
内容:总之
固体燃料
目前搞不来性能特别好的,我在高考完后有搞液体发动机的想法,但现在好像也只能用KNSB或rnx了,等我下次把这个剩下的KNSB药柱用完后就试试rnx。
【六盘山中学科技创新社】HMTD化学水火箭—设计方案
game00over
12年1个月前
发表于
喷气推进
内容:社团的申请学校终于批下来了,本来想做
固体燃料
火箭的,但是学校说太危险不行。
除了固体火箭发动机我们还能做什么?
韩菱纱
15年0个月前
回复于
喷气推进
内容:引用第23楼普通用户于2009-07-29 13:06发表的 :
固体燃料
必然是贫氧的,燃料先不完全燃烧,产生的燃气再与空气混合二次燃烧。
固体火箭入门简介
novakon
8年2个月前
发表于
喷气推进
内容:发动机具有气密良好的外壳,内部装有
固体燃料
。,
固体燃料
常态下具有固定的形态,故
固体燃料
发动机之结构极其简洁,无需设计控制机构,易于业余条件下制作。,业余常见的
固体燃料
,有KNDX、RNX、APCP等。,燃料 不同的
固体燃料
,其各方面性能各不相同。
[研究课题]题目:可改变体积大小的飞行器的设计
立体派
9年11个月前
回复于
喷气推进
内容:如火箭燃料,分
固体燃料
和液体燃料。,
固体燃料
要分好多种。
准备入门Arduino
二甲基亚砜
4年10个月前
发表于
电子技术
内容:这段话是摘自我借的这本《从零开始学Arduino电子设计(创意案例版)》 在论坛的
固体燃料
火箭领域有很多涉及使用Arduino的,比如用MPU6050测偏角开伞的彩虹之巅的测气压值跟一个场效应管放大电路控制开伞的还有很多当然肯定在其他我没有过多了解领域也有很多可以看到
老外的火箭帖翻译-HIGH-5
艺术就是爆炸
12年7个月前
回复于
喷气推进
内容:貌似大型火箭的
固体燃料
有硝基胍,RDX,NC,之类的
回 31楼(ehco) 的帖子
清纯小萝莉
11年10个月前
回复于
喷气推进
内容:
固体燃料
棒必须要预热才能正常点燃,如果不断重启燃料棒会因为部分汽化而流失,蒸发。
固液火箭发动机知识普及
wsygz08
12年2个月前
发表于
喷气推进
内容:一种是经喷注器喷射进到装药通道前部的氧化剂流动,另一种是
固体燃料
高温分解产物的流动。,1)惰性
固体燃料
——在固液火箭发动机中常用的
固体燃料
像HTPB和PE都是惰性物质,因此在生产、贮存和操作过程中安全性好。,而在固液火箭发动机中燃料和氧化剂是分在两个贮箱中,燃烧通常发生在
固体燃料
表面。,2)燃烧室不需要冷却系统——由于
固体燃料
加热分解,本身就可以对燃烧室壳体进行冷却,此外没有燃烧的
固体燃料
还可以充当燃烧室壳体绝热层,因此固液火箭发动机不另外需要再生或液膜冷却系统。,
固体燃料
主要是聚氨酯类的橡胶,例如端羟聚丁二烯,有的还含有金属粉末(如铝、镁等)和含能增塑剂。
转发 轻兵器的
jlt1
16年11个月前
发表于
喷气推进
内容:一种是经喷注器喷射进到装药通道前部的氧化剂流动,另一种是
固体燃料
高温分解产物的流动。,1)惰性
固体燃料
——在固液火箭发动机中常用的
固体燃料
像HTPB和PE都是惰性物质,因此在生产、贮存和操作过程中安全性好。,而在固液火箭发动机中燃料和氧化剂是分在两个贮箱中,燃烧通常发生在
固体燃料
表面。,2)燃烧室不需要冷却系统——由于
固体燃料
加热分解,本身就可以对燃烧室壳体进行冷却,此外没有燃烧的
固体燃料
还可以充当燃烧室壳体绝热层,因此固液火箭发动机不另外需要再生或液膜冷却系统。,3)有多种推进剂组合可采用——在
固体燃料
中可以加入各种不同的添加剂如铝粉,来提高发动机的比冲。
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