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设计并制造一台再生冷却液氧甲烷液体火箭发动机
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机械与工具
内容:CAD\\CAE\\CAM软件这类软件可以算是主流,设计/分析/
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回复于
喷气推进
内容:首先是发动机,发动机如果执意要做塑料机建议用石膏做喷口并用螺丝固定,发动机
制造
之前要先进行模拟和计算,大部分计算器论坛内就有,看楼主现阶段是不打算回收了,鼻锥可以用泡沫(网上有售锥形泡沫)。
祝贺嫦娥三号发射成功!
幻痛的心
11年1个月前
回复于
喷气推进
内容:期待玉兔发回月球表面图片,更希望我们的祖国能成为独树一帜的航天大国,管你技术禁运,还是版权纠纷,中国
制造
已经是全球化了!
这个东西是真是假
kuanglong7
15年1个月前
回复于
化学
内容:在大气中含量极少 合成方法: 意大利科学家使用普通氧分子与带正电的氧离子作用,
制造
出o4 O4的能量密度比普通氧分子高 是用普通氧分子和带正电的氧离子
制造
出含4个氧原子的氧分子。
科技让国人汗颜 日韩对决-年轻技术精英之战(转)
delete
14年6个月前
回复于
机械与工具
内容:并不可认同 要知道太过自我满足是不好的表现 由于人家工艺过硬技术过强才可以
制造
更好的产品 不向我们做的都是比较次的东西以价格和数量取胜是不可行的 又如何走向世界?
科普,发电机无刷励磁
metellan
11年2个月前
回复于
电气电工
内容:原理虽然可以实现,但实际上,靠机械装置调节磁场强度和位型的设计和
制造
的难度无法想象,成本更无法想象,最终反应速度还会超慢。
塑料太阳能
大仙
16年5个月前
发表于
电气电工
内容:借助于纳米技术和聚合物,他们
制造
出了这种柔性太阳能电池。
关于选用金属火箭的材料。。。
lilith
16年0个月前
回复于
喷气推进
内容:我觉得,目前使用金属最合适的应该是用来
制造
各种模具,比如燃料的模具,喷口的模具,这样可以使我们的制品标准化!
关于火箭燃烧室.燃料与喷嘴
xixihaha
18年7个月前
回复于
喷气推进
内容:二茂铁是一种夹心配合物,茂是一种有机物的名字.二茂铁主要用做燃料添加剂,可以改善压强指数,降低发烟量,催化燃烧的进行,很多拉,好像还能
制造
药品,用的是茂盐(好像是吧)与氯化亚铁反应制得.自己查一下,二茂铁不是什么猛炸药
自制火箭发动机
阿丕
19年0个月前
回复于
喷气推进
内容:上小学就有这样的认识和成果,不错了 我比较喜欢
制造
固体火箭发动机,因为我有完整的设计计算程序,可以比较精确的获得推力等数据.
发帖问金属发动机细节问题...话说很多年不见ABC了?
lovehongkong
15年2个月前
回复于
喷气推进
内容:无缝管 可不止6MPa 尽情享受吧KNDX6Mpa以上的曲线感觉不值得追求反正安全一点就好了6Mpa足矣我感觉你燃料制作都不一定过关对,第一阶段难点是燃料会尝试点不同的
制造
方法
科创航天局探空火箭计划的立项讨论
kknd
13年9个月前
回复于
喷气推进
内容:重点精力放在发动机
制造
和探测目标数据的获取装置(有效载荷)上,低成本,短周期,快速完成地面试车和试飞。
【SORT】“星火”一米口径射电望远镜项目完成情况简要报告
154454496
5年1个月前
发表于
天文与空间科学
电子技术
内容:2、可行性分析市售高频头的增益一般为55dB,RTLSDR的灵敏度约为-130dBm,考虑约30dB的各种损耗(对于在粗陋条件下
制造
的微波电路,这并不夸张),进入高频头的功率至少要有-155dBm即约为,后者的设计、
制造
与调试均比前者困难,且对波长有选择性,所以不考虑。,4-2 高度角转动装置(下文简称支架)为降低
制造
难度,提高可靠性,我们直接使用天线自带支架进行改造。,总结与反思我们用卫星电视器材为主体,结合Arduino与RTLSDR搭建了一台1.2m口径的射电望远镜“星火”一米口径射电望远镜(SORT望远镜),并在这一过程中学习研究了微波电路的设计等一系列知识突破了大型设备的
制造
NIKON(尼康)古董荧光显微镜拆解
虎哥
4年8个月前
发表于
拆机鉴赏
物理
内容:尼康公司是世界光学巨头,它
制造
的显微镜以使用舒适著称,占有很大市场份额。
美国研究用野草提炼燃料取代汽油
pouumm3611
16年2个月前
发表于
极客DIY
内容:目前用来
制造
乙醇的玉米和大豆必须种植在肥沃的土壤上,同时也经常被当做食物,而柳枝稷却是连牛都不大喜欢吃。,奥克拉荷马州立大学最近所做的研究还包括另外一种利用柳枝稷来
制造
乙醇的方法,这种方法是把柳枝稷切碎,加热后把产生出来的一氧化碳、二氧化碳和氢气喷入一个生物反应器,反应器里面的微生物使这些气体变成乙醇,做为引擎燃料,如果目前
制造
乙醇的研究工作获得成功,柳枝稷将会卷土重来。
德国制造的威勒精密维修间车床
mrsmith
12年6个月前
回复于
机械与工具
内容:现在精度高的的东东,很多已经不是德国
制造
了。
令人口水滴答的新能源----核电池
royfocal
16年10个月前
回复于
电气电工
内容:那要什么样的物质才能挡住他呢,只有那些重金属物质了,所以我们现在只要找到一种能够完全屏蔽掉这些射线,并且是带有大量电荷的物质(还要有良好的导电性),通过射线对其的轰击造成这种物质局部产生的电压差就可以
制造
出小巧安全的核电池了
上传一本好书,讲石墨烯的
smith
9年9个月前
回复于
化学
内容:引用 张静茹:自己
制造
集成电路吗?
回家创业 净身出户 清场大处理
墨镜哈哈日记
9年4个月前
回复于
跳蚤市场
内容:还有一个超级 强,弩 全实心铁
制造
很重 弓片是0.3MM弹簧钢弹力十足,力气小不一定能上弦 电源要了,弓的话先谈一下价格吧,走支付宝可以吗
你熟悉而又不熟悉的耳机——谈谈耳机的门类
lostwinds
12年3个月前
回复于
电子技术
内容:耳机型号档次种类众多,曾
制造
出全世界最昂贵的静电耳机系统ORPHEUS,目前主要生产基地在中国,但HD600、HD650仍在爱尔兰生产。,其中高端产品在德国
制造
,低端产品在台湾或中国大陆
制造
。 ,其耳机全部在德国本土
制造
,最高端为封闭式耳机QP450PRO,其下有QP400、QP250、QP240、QP220、QP200、QP160、QP805(专业用途)等。,AKG产品中高档在奥地利生产,低档产品在中国或越南
制造
。
MUCE垂直轴风力发电机——使风电建筑一体化成为可能
hamdad
17年6个月前
回复于
电气电工
内容:90年代初,加拿大
制造
的垂直轴风力发电机组单机容量已经达到3MW(3,000,000W)
活动回帖
yy+sy
16年0个月前
回复于
极客DIY
内容:可以
制造
超级的波浪,同时加上电脑控制的冲浪板,在家享受冲浪的刺激。
【开源卫星】小卫星的应用方案讨论:视频卫星、wifi卫星、无线电监测卫星、探空替代品
warmonkey
10年0个月前
发表于
航天技术
内容:使用Ku或者Ka波段的好处是显而易见的:容量大,天线尺寸小,现在的技术
制造
这样的设备也不太贵。,本帖讨论的东西,大家都将有机会亲手完成
制造
并发射到轨道上。
探讨下关于定向放电的技术```
虎哥
15年3个月前
回复于
电磁炮
内容:从逻辑上也很容易看出问题,如果真是漏电,门的
制造
商早就应该成为关注焦点了,居然会只字未提,别人为他赔钱。
回 5楼(power_rdx) 的帖子
skyline
11年8个月前
回复于
强激光
内容:很遗憾,这问题你别问我,前苏联的军事科技的技术水平也不是你我这种业余爱好者能去理解的,此坦克的的2辆原型车现在就放在俄罗斯某坦克
制造
厂里当展示纪念品,如果你仅仅因为你没见过就去否认它的存在的话,那这个世界上对于你来说不存在的东西就太多了
关于喷管材料的讨论
阿丕
17年8个月前
发表于
喷气推进
内容:近期
制造
喷管的过程中,改动了喷管材料配方(去除粘土),单独使用玻璃粉和硅酸钠混合.发现一些有意思的地方:1.混合物可以立刻进行高温加热处理而不出现龟裂2..硬度介于碳酸钙类岩石和砂岩间3.干燥后几乎没有尺寸缩减存在
烂箭1号 明日择机发射
pbhapya
14年0个月前
发表于
喷气推进
内容:本箭有两级发动机2.发射时使用15g银火药做起飞助力3.箭体重620g3.燃料重200g4.发动机外直径32mm5.发动机内径24mm6.喷口直径9mm7.箭体总长8400mm虽然箭体
制造
很简陋但 发动机质量没问题
KNSU火箭发动机设计图纸求检查~
西风踏雪
11年9个月前
发表于
喷气推进
内容:另注:因为家里没有精确度高的称,我的推进药只能基本保证硝酸钾:蔗糖=3:2,热熔铸法
制造
。。
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