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燃料
火箭是人类种群摆脱地球桎梏的可行途径。
关于业余火箭领域的发展的一些想法
法式油炸薯条
8年10个月前
发表于
喷气推进
内容:2,火箭
燃料
板块,仅对火箭发动机相关翔实理论贴,实践教程加精。
日本人的电机知识大集结
公众号EV技研作者1900
5年4个月前
发表于
电动汽车
内容:来临无刷电机驱动电路结构解析电动汽车背后藏着——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
燃料
车的能量效率对比驾照依旧免不了
EV比赛用电机的开发步骤
公众号EV技研作者1900
5年3个月前
发表于
电动汽车
内容:来临无刷电机驱动电路结构解析电动汽车背后藏着——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
燃料
车的能量效率对比驾照依旧免不了
网上化学数据库
mosiluo
15年9个月前
发表于
化学
内容:化石用于
燃料
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXX/c ...
罐头的历史
用户已注销
16年6个月前
发表于
科学技术学
内容:1795年,拿破仑被任命为法国“内防部”副司令,拿破仑是个雄心勃勃的人,他要凭借军事力量登上法国最高统治者的宝座,要用武力四处去征伐,就必须解决军队食物供给问题,因为后勤部队被许多锅灶、粮食、
燃料
等杂物所拖累
你才数学系,你全家都数学系的
立棍
12年1个月前
回复于
数学
内容:应该把
燃料
温度降低到燃点以下, 把燃烧物与氧气隔离.
【原创】集之大成者 — 各类化学试剂获得途径详解!
mithril
16年1个月前
发表于
化学
内容:37.碳 ---- 商品名为木炭,其用途非常广泛,除了是日用
燃料
之外,还广泛用去提取碳氢化合物只用,由于木炭内含有的杂质非常多,这种碳只能当做黑火药的组分,一般杂货店可以购得。,47.丁烷 ---- 商品名为火机用气,丁烷是火机
燃料
的主要成分,一般以加压的形式出售用于火机气的补充,日用品店可以购得。
[转帖]树立正确的海洋观
玄明
19年1个月前
发表于
地理与地质
内容:可作为核
燃料
的铀矿,约为 45亿吨,相当于陆地储量的4000多倍。,1千克氘
燃料
,可以抵得上4千克铀或10000吨优质煤。,世界上有不少科学家在进行 “海水
燃料
计划”研究。
测试报告
pbhapya
14年7个月前
回复于
喷气推进
内容:您说的没错堵漏王的确是在堵头外面,当时这么做主要考虑堵漏王水分较大怕对
燃料
有影响还有就是一开始少量混合堵漏王和水发现会产生热量 怕大量混合有危险。
回 10楼(wesker) 的帖子
拔刀斋
13年0个月前
回复于
喷气推进
内容:还有一种类似的东西:聚乙二醇化学DIY版主用来做过PAP
燃料
,可以像硝糖一样热熔,燃速非常暴力。
一个解算试车收集到的推力的程序
某倒吊的亚雷斯塔
1年9个月前
回复于
喷气推进
内容:time[i] di = force[i]*dt I += di#积分算总冲data = input('''请输入相关数据,格式如下:发动机名称/直径(mm)/长度(mm)/开伞延时(s)/
燃料
质量
回 29楼(wuxiaof12) 的帖子
hx
12年3个月前
回复于
喷气推进
内容:盲目尝试~~~~~~OOXX 想想哪位拿红磷制作
燃料
的同学。
一枚小型(塑料)固体火箭发动机的设计和制作【图文并茂,细节详尽】】
qqwwbn
10年0个月前
发表于
喷气推进
内容:(一)基本要求:设计一枚以C-PVC管(内径21.50mm)为主体,KNDX作为
燃料
,堵漏王作为堵头&喷口(拉瓦尔喷管)材料的小型固体火箭发动机。
40mm小火箭制作到发射
玩世不恭
3个月16天前
发表于
喷气推进
动手实践: 实验报导
内容:mini来接收传感器mpu6050陀螺仪的角度反馈 最后控制9v升压模块输出电压 点燃点火头右图就是定角度开伞模块的设计草图因为之前也已经发过文章了 我就不过多叙述了 下面是文章链接定角度开伞模块固体
燃料
发动机部分
云舟系列临近空间卫星发射项目
帝江航天空间动力
9个月9天前
发表于
喷气推进
内容:直至二级
燃料
耗尽。
WASA-E2型1.5km射高50mm探空火箭发射成功
落叶兄
9年2个月前
发表于
喷气推进
内容:综合价格来看,40cr无缝钢管非常适合做火箭发动机 喷口为拉瓦尔喷口,收敛角80度,扩张角60度 图纸如下
燃料
选为RNX,模具图纸如下,隔热层为40mmpvc 4。
【火箭技术板块资源索引】
小哈_abc
11年0个月前
回复于
喷气推进
内容:XXXXXXXXXXXXXXXX/t/12053 (出处: 科创论坛) 金属发动机壁厚计算器 XXXXXXXXXXXXXXXXXXXXXXXX/t/31380 (出处: 科创论坛) 推进剂新纪元:计算自创
燃料
的内弹道参数
探讨发射小卫星的可行性及路线图问题
NoxTyrannus
13年0个月前
回复于
喷气推进
内容:,所以,我们的火箭需要有变形金刚般的能力,即自我展开,自我闭合,第三,按照现有坛内技术水平来说,可否制造一个周期性发射固定序列电磁波的微型机械,太阳能供电……其三,
燃料
是基本确定的,然后就是对整体火箭的设计问题了
杭高天文社社用教材
客星晨出东方
1年11个月前
专栏文章
杭高天文社纪实
内容:恒星在主序星阶段停留的时间,取决于其核心氢燃烧的时间,一般来说,质量越小的恒星,其核反应的速度越慢,寿命也就越长,质量的恒星,虽然
燃料
多,但是消耗的也快,所以寿命短。,氦闪产生大量的能量,但对于外部几乎不会导致恒星亮度增加,反而因为星核膨胀,吸热导致光度骤减,进入稳定的氦燃烧阶段,这样对于这颗恒星,其核心是氦的燃烧,其外部氢的壳层依然在燃烧,此时的恒星称之为氦燃烧星,当中心氦核的的
燃料
也用尽的时候,,恒星的核心就会变成以碳氧为主从恒星,而临近核心的外壳则是燃烧的氦壳层,再外层则是燃烧的氢壳层,此时的恒星进入双壳层燃烧阶段,这一阶段称之为渐近巨星支(AGB),当双壳层的
燃料
即将耗尽的时候,恒星的能量已经不能维持其核心不发生引力坍缩
杭高天文社社用教材
客星晨出东方
1年11个月前
专栏文章
杭高天文社纪实
内容:恒星在主序星阶段停留的时间,取决于其核心氢燃烧的时间,一般来说,质量越小的恒星,其核反应的速度越慢,寿命也就越长,质量的恒星,虽然
燃料
多,但是消耗的也快,所以寿命短。,氦闪产生大量的能量,但对于外部几乎不会导致恒星亮度增加,反而因为星核膨胀,吸热导致光度骤减,进入稳定的氦燃烧阶段,这样对于这颗恒星,其核心是氦的燃烧,其外部氢的壳层依然在燃烧,此时的恒星称之为氦燃烧星,当中心氦核的的
燃料
也用尽的时候,,恒星的核心就会变成以碳氧为主从恒星,而临近核心的外壳则是燃烧的氦壳层,再外层则是燃烧的氢壳层,此时的恒星进入双壳层燃烧阶段,这一阶段称之为渐近巨星支(AGB),当双壳层的
燃料
即将耗尽的时候,恒星的能量已经不能维持其核心不发生引力坍缩
我国大力发展风电的前景分析
creator
19年3个月前
发表于
极客DIY
内容:2050年装机容量占电力总装机的10%,亦即达到120GW(相当于修建120座标准核电站),那么到2050年,累积天然铀供应量将至少达到63万吨,但目前我国并没有这样大的资源,出路之一是发展各种能增值核
燃料
的新型中子堆,锂离子蓄电池有高达90%以上的充放电转化率,这比抽水储能发电站的转化率还要高出一些,甚至也比氢
燃料
电池80%的发电率高。
[原创]我也贡献下,谈谈我对火箭稳定性的研究.
暗剑
16年8个月前
发表于
喷气推进
内容:当一个不稳定的火箭点火以后,它 会很快产生随机的打转.但是由于
燃料
的消耗,火箭的重心会前移.稳定 性会增加.要是达到稳定的临界状况时火箭刚好转到正对你或者观众的 位置!
(转)大跃进年代的中国教育
彼岸江山
16年1个月前
发表于
科学技术学
内容:发电容量2000千瓦的我国第一座实验性的
燃料
综合利用发电厂,是利用学校后面一个破旧的小庙作厂房的,已于8月初旬着手安装发电机组,将在10月正式发电……” 清华大学校长特别引用了一首学生诗歌:“世界上最好的诗是车刀在钢铁上写的
TRIZ创始人简介
liuyanchen
19年1个月前
发表于
科学技术学
内容:15岁的时候,他制作了一条船,船上装有使用碳化物作
燃料
的喷气发动机。
详解固体火箭发动机(转帖)
空中米格
16年0个月前
发表于
喷气推进
内容:民兵3和“和平卫士”MX使用的是液体
燃料
PBV,可以多次重启;三叉戟C4/D5使用固体
燃料
燃气发生器PBV;“白杨”(SS-25)、“白杨-M”(SS-27)、“侏儒”等单弹头导弹也使用了PBV。,法国M51导弹:轨道式缠绕机正在对壳体进行环形缠绕 测试中的M51导弹一级发动机壳体 民兵3的第一级发动机 缠绕好的壳体 固体推进剂 固体推进剂是由氧化剂、
燃料
(可燃剂,复合推进剂使用单独的可燃剂和氧化剂材料,以液态高分子聚合物粘合剂作为
燃料
,添加结晶状的氧化剂固体填料和其它添加剂,融合凝固成多相物体。,(2)二次喷射 将液体
燃料
或燃气发生器产生的燃气或惰性气体通过发动机喷管扩散段内壁的喷注孔以一定角度喷射到高速排出的燃气流中,使其在喷管内形成斜激波,由于压力的不平衡使燃气流发生偏转,从而产生控制力矩
日本核污水排放一周年,我去了福岛核电站所在的小镇
硝化咸鱼
3个月13天前
发表于
核技术与核仪器
内容:由于堆芯破损,核
燃料
与冷却水直接接触,导致所有注入的冷却水均被放射性核素污染,无法直接排放。
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