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回 12楼(旗舰实验室) 的帖子
乖老汉
13年0个月前
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warmonkey
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回复于
喷气推进
内容:V-2等早期蛋蛋都是用H2O2送入放有浸泡了高锰酸钙的碎瓷片的反应釜分解,蒸汽驱动直吹式涡轮机,涡轮机带动
燃料
泵和氧化剂泵。,液体在阻力下是否可能前倾或者晃动,气泡,气体溶解在液体中)管路(共振)流量传感器(与气阀联动调节流量)喷注器(双撞流或者3撞流均可,开小孔令液体相撞雾化)燃烧室(可能有金属蜂窝结构消除燃烧震荡,侧面需要加入
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管形成冷却液膜
设计了3D打印的CO2激光器,各位看看可行吗
电子Q
7年6个月前
发表于
强激光
内容:初三狗一枚,略懂各种电子设计pcb制造化学合成含能材料高压电的也玩过微积分线性代数什么学的差不多造过小发动机钳工入门各种喷灯氢氧焊机太阳能发过电火箭
燃料
爆炸两次还活着的刚刚没中考的小伙子XXXXXXXXXXXXXXXXXXXXXX
液体火箭发动机再生冷却冷却剂物性影响及其关键数据变化规律
LSEQY
1个月27天前
发表于
喷气推进
内容:本文以采用主动冷却的再生冷却用一个推力为3000N,
燃料
为液氧乙醇,余氧系数0.8,工作压力2MPa,冷却到通道入口压力3MPa的发动机展开研究。,那么我们通常在设计液体火箭发动机时,在选取
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上应当尽量选取导热率略高且比热容略大的
燃料
。
线圈匝数越多,越容易成为低速电机的原因
公众号EV技研作者1900
5年6个月前
发表于
电动汽车
内容:23740项汽车专利事件】调查电动汽车背后藏着——石油、战争、地缘政治6分钟完成充电,续航320km——东芝TNO/NCM电池初探老铁,来杯特斯拉专利文献不,电磁口味的【日本庆应大学、群马大学数据】EV与
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车的能量效率对比
我要做个恒温的,帮下忙
1000
15年7个月前
发表于
电子技术
内容:我想用来做
燃料
,可是温控范围是20-100,怎么才能到200还有一个问提,就是那个LM339的电路怎么接,我想用来防止电容充电过头
有关暑假CHX-3模型火箭发射的一些总结和后续展望
蜂起4223
1个月18天前
回复于
喷气推进
内容:3、
燃料
一定要等充分冷却固化再进行脱模,不然容易使内孔变形,对性能有较大影响。,4、KNSB
燃料
粘度较高,制作过程中较难脱模。
科创航天,何去何从?——发展战略谈(1)
焓熵`
11年8个月前
回复于
喷气推进
内容:在這一點中,Novakon提出來Qharry版主前段時間發射的火箭,並表示對此形式的贊許 沒錯,Qharry是有效的完成了其火箭的整體設計工作,這有賴於他精通OpenRecket等仿真軟件,並對KN系
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發動機有所瞭解,但從技術細節來看,其火箭與YT4相比有著許多問題細節 1.在廣州項目組的前兩期項目中,已經明確否定了KN系
燃料
的研製工作,原因在於其產品的可儲存性和工藝的重複性低 2.在廣州項目組的前兩期項目中,已經明確否定了自制降落傘的使用,由於尼龍等受力繩的性能參數不明確,傘體整體受力情況不明確,因此改用軍用退役傘 諸如此類問題,在拿到火箭實體後,還有很多可以查明 無疑的是Qharry是成功的發射了一枚KN系火箭,並成功的進行了開傘工作,但其航電設備屬於外包製造,其
燃料
的安全性也達不到廣州項目組的要求
200元一个10瓦燃料电池
RodTech
7年1个月前
回复于
跳蚤市场
内容:引用 power_rdx:引用 RodTech:引用 power_rdx:想使用这个“便携
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电池”是不是还得背个氢气瓶子?
疯狂切尔诺贝利游记-----bionerd23女士系列视频
RodTech
10年0个月前
发表于
核技术与核仪器
内容:典型的防护失误案例 作死之第四: 切尔诺贝利路边挖出一颗1/4米粒大,竟然有17mSv/Hr的
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/石墨碎片,用高纯Ge能谱测得极高的Cs137峰,和很低的Am、Th等峰,典型切尔诺贝利状况。
进阶:火箭制作首次重大突破(个人层面)拉喷及3D打印结合
星航天
2年8个月前
发表于
喷气推进
动手实践: 实验报导
内容:(未经本人允许不得转发)这个就当是成功路上的学费了,一个简单照猫画虎的产物,试车非常不理想,尺寸不过关,
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装填极度有限,稳定性较差,总体来说,只能强过水管机,但也属于本人的一次伟大尝试,属于水管机到拉喷的过渡产物
预热模具
鬼灯哥
13年0个月前
回复于
喷气推进
内容:5021.5020都可以,第二个就是手够不够快,这个只有通过时间来提高,有经验的话一抓就知道这一搓是不是多了,大概用几次能搓成小条,放进去大概占多少体积,所以没有必要花时间去研究预热的问题,除非lz的
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在一百克以上
[再次更新]某的第一条固液混合发动机.[视频+多P]
拔刀斋
14年0个月前
回复于
喷气推进
内容:因此喷注器一要防喘燃回火,燃烧室压强小于储箱压强一半;二要防流体动力冲击,电磁阀开了之后在
燃料
耗尽之前尽量避免再关闭。
玉兔2A火箭首次试射点火不成功的原因分析
ehco
13年6个月前
回复于
喷气推进
内容:然后根据这种混了杂质的
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设计出的150MAX喷然发动机能正常点火和工作。
【实验】s8 32 mm KNDX火箭发动机静态推力测试(汗倒。。超量程)
nazismith
17年0个月前
回复于
喷气推进
内容:超量程(大于7000克)
燃料
60克看视频里那发动机真是无敌。。
KNDX制作工艺新的尝试--直接混合加热---
冥灵
13年8个月前
回复于
喷气推进
内容:不过不知道
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会不会潮解,楼主制好KNDX后放上一天,看看会不会潮解。。。
新设计的火箭
west_0830
16年6个月前
回复于
喷气推进
内容: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
KNSB制作中出现问题,求解啊各位
侧卫007
14年1个月前
回复于
喷气推进
内容:而且通过控制火焰和蒸发皿的距离,可以粗略地控制温度,一开始的时候近一些,熔化了就远一些,后期装模的时候离远一些,通过
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的柔软度可以大致判断温度的高低,都是很容易的。
能源转化新技术受中外专家关注
大仙
16年6个月前
发表于
电气电工
内容:天然气转化制液体
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与多种基本化学品的研究、天然气作为新的氢源等已成为重大战略研究课题。
寻找失散多年的盟友【向拉风定了一个火箭发动机700元】
Zhangrky
9年6个月前
回复于
跳蚤市场
内容:引用 低调的主席:是什么
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?
EV无线充电与地域差异
公众号EV技研作者1900
5年6个月前
发表于
电动汽车
内容:23740项汽车专利事件】调查电动汽车背后藏着——石油、战争、地缘政治6分钟完成充电,续航320km——东芝TNO/NCM电池初探老铁,来杯特斯拉专利文献不,电磁口味的【日本庆应大学、群马大学数据】EV与
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车的能量效率对比驾照依旧免不了
669试车,奇怪的炸机,求大佬指点
wfjl
5个月14天前
独立文章
内容:但是这一次给我整不会了这一次主要是用669
燃料
来试车,总装药50克,用的400目的AP,500纳米的氧化铜来催化这是药柱因为经济的原因,没有进行脱泡处理并且因为一些原因导致药柱的也不是怎么好,但是我对光看了一下
全世界最炫酷的大学实验室
wsygz08
12年8个月前
回复于
科学技术学
内容:目前在肯尼亚的一个项目中,学生与社区居民一起工作,用当地农作物制作生物柴油,并使用该
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,来驱动低成本便携式发电机(也由这个项目设计),以为该村生产电力。,剩余的
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将出售给外部市场,为该社区提供一个稳定的收入来源。,去年,现代用未来绿色汽车挑战前辈时,陈董(音)特别设计了一台野心勃勃的汽车:带风力涡轮的空气动力学氢
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汽车。,一个氢
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电池为4个独立的枢纽式电动马达供电,由风力涡轮转动时带起的空气冷却。
刚刚进行了一次玻璃外壳固体火箭发动机论证试验
yanglurong
15年6个月前
发表于
喷气推进
内容:刚刚进行了一次玻璃外壳固体火箭发动机论证试验 [s:95]手头上还剩下最后的一根导火线(以前烟花上拆的库存)本人新手还未能做出好的
燃料
所以在玻璃瓶中装黑火药做为替代品测试玻璃容器作为固体火箭发动机的可行性试验
55MM*300*MM发动机试车成功
sxm
1年9个月前
发表于
喷气推进
动手实践: 实验报导
内容:22年从河北来到了海南上学,原因也就是因为河北中考压力大,这就是计划刚开始的时候发的帖子当时的设计和现在迭代的设计已经是天壤之别,没什么好说的,还是看图吧使用knsb由于
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受潮,工作时间长达10s,期间无任何漏气现象
多级火箭级间分离机构设计
Vanguard_Marx
2年7个月前
发表于
喷气推进
内容:================采用直流电磁推拉式阀门:(12V)原理:通过电磁铁卡住上面级的机构(比如上面级延伸下来的铁棒)起到固定的作用,再通过飞控控制电磁铁的开合,从而起到分离的作用,流程:一级
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用尽
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