澳门威尼斯

就是采用上面动图中的装置避免地震等震动让核弹不经意走火

六月 1st, 2019  |  科学

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这是杨百翰大学(Brigham Young University)的机械工程学教授 Larry Howell
为美国军方开发的保险和解除保险装置。它属于一种叫做柔性机构(compliant
mechanism)的机械机构。

澳门威尼斯 3而且,柔性机构都比较耐用,运动也更为精准。”
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比如上面提到的柔性“老虎钳”,可以像这样从模具里挤出来,然后再切割。

来看看这个柔性机构可以轻松抓东西。长得有点面善是吧,因为你家的老虎钳和它有差不多的原理。是的,老虎钳也属于柔性机构哦!

首先,柔性机构的结构相对更简单,因此一般更加轻巧,制造也更方便,成本更低廉。这让柔性机构尤其适用于对重量很敏感的应用,比如航天工业。

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澳门威尼斯 6如果要用硅这样脆的材料来制造零部件,柔性机构就是很好的选择。”
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澳门威尼斯 7澳门威尼斯,不过这个小工具却可以把人在把手上施加的力量放大约30倍。”
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{“type”:1,”value”:”Larry Howell
的实验室还做了许多有趣的,灵感来自于折纸的可动机构。

澳门威尼斯 12

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{“type”:1,”value”:”来源丨把科学带回家

{“type”:2,”value”:”http://inews.gtimg.com/newsapp\_match/0/8267123335/0","imgurl641":{"imgurl":"http://inews.gtimg.com/newsapp\_bt/0/8267123335/641","width":330,"height":154},"imgurlgif":{"imgurl":"http://inews.gtimg.com/newsapp\_match/0/8267123335/0","width":330,"height":154,"length":1422}},{"type":2,"value":"http://inews.gtimg.com/newsapp\_match/0/8267123437/0","imgurl641":{"imgurl":"http://inews.gtimg.com/newsapp\_bt/0/8267123437/641","width":330,"height":297},"imgurlgif":{"imgurl":"http://inews.gtimg.com/newsapp\_match/0/8267123437/0","width":330,"height":297,"length":1765}},{"type":2,"value":"http://inews.gtimg.com/newsapp\_match/0/8267123298/0","imgurl641":{"imgurl":"http://inews.gtimg.com/newsapp\_bt/0/8267123298/641","width":330,"height":340},"imgurlgif":{"imgurl":"http://inews.gtimg.com/newsapp\_match/0/8267123298/0","width":330,"height":340,"length":1107}},{"type":2,"value":"http://inews.gtimg.com/newsapp\_match/0/8267123258/0","imgurl641":{"imgurl":"http://inews.gtimg.com/newsapp\_bt/0/8267123258/641","width":330,"height":154},"imgurlgif":{"imgurl":"http://inews.gtimg.com/newsapp\_match/0/8267123258/0","width":330,"height":154,"length":684}},{"type":2,"value":"http://inews.gtimg.com/newsapp\_match/0/8267123253/0","imgurl641":{"imgurl":"http://inews.gtimg.com/newsapp\_bt/0/8267123253/641","width":330,"height":269},"imgurlgif":{"imgurl":"http://inews.gtimg.com/newsapp\_match/0/8267123253/0","width":330,"height":269,"length":398}},{"type":2,"value":"http://inews.gtimg.com/newsapp\_match/0/8267123357/0","imgurl641":{"imgurl":"http://inews.gtimg.com/newsapp\_bt/0/8267123357/641","width":330,"height":220},"imgurlgif":{"imgurl":"http://inews.gtimg.com/newsapp\_match/0/8267123357/0","width":330,"height":220,"length":1029}},{"type":2,"value":"http://inews.gtimg.com/newsapp\_match/0/8267123291/0","imgurl641":{"imgurl":"http://inews.gtimg.com/newsapp\_bt/0/8267123291/641","width":330,"height":250},"imgurlgif":{"imgurl":"http://inews.gtimg.com/newsapp\_match/0/8267123291/0","width":330,"height":250,"length":671}},{"type":2,"value":"http://inews.gtimg.com/newsapp\_match/0/8267123261/0","imgurl641":{"imgurl":"http://inews.gtimg.com/newsapp\_bt/0/8267123261/641","width":330,"height":203},"imgurlgif":{"imgurl":"http://inews.gtimg.com/newsapp\_match/0/8267123261/0","width":330,"height":203,"length":807}},{"type":2,"value":"http://inews.gtimg.com/newsapp\_match/0/8267123290/0","imgurl641":{"imgurl":"http://inews.gtimg.com/newsapp\_bt/0/8267123290/641","width":330,"height":178},"imgurlgif":{"imgurl":"http://inews.gtimg.com/newsapp\_match/0/8267123290/0","width":330,"height":178,"length":2031}},{"type":2,"value":"http://inews.gtimg.com/newsapp\_match/0/8267123297/0","imgurl641":{"imgurl":"http://inews.gtimg.com/newsapp\_bt/0/8267123297/641","width":330,"height":238},"imgurlgif":{"imgurl":"http://inews.gtimg.com/newsapp\_match/0/8267123297/0","width":330,"height":238,"length":1281}},{"type":2,"value":"http://inews.gtimg.com/newsapp\_match/0/8267123292/0","imgurl641":{"imgurl":"http://inews.gtimg.com/newsapp\_bt/0/8267123292/641","width":330,"height":269},"imgurlgif":{"imgurl":"http://inews.gtimg.com/newsapp\_match/0/8267123292/0","width":330,"height":269,"length":1036}}

Larry Howell
介绍,大家一般认为,机器里有一些会随着环境噪音的变化而运动的机械部件是件不妙的事情,但是他的团队却要把大家都讨厌的事情变成一项优势。

澳门威尼斯 14作者丨美图君”
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{“type”:1,”value”:”再来看看这个好玩的玩具。

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{“type”:1,”value”:”柔性机构和传统的机构相比有不少优势。

{“type”:1,”value”:”比如下面这个类似于指甲刀的小玩意儿在疲劳测试(fatigue
testing)中的表现强大,它可以被玩1百万次而不会坏。

猜猜下面这个小工具是干什么用的?

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澳门威尼斯 20这个像大象的屁股被戳的时候,象鼻尖的部位是不动的。”
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核弹威力惊人,很可怕,万一不小心擦枪走火,岂不是要引起世界恐慌?有什么办法避免意外发生呢?有一种方法,就是采用上面动图中的装置避免地震等震动让核弹不经意走火。

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