过程|神舟十二号载人飞船将与天和核心舱交会对接_核心|目标|飞船|变轨|神舟|贾世

<br />文章图片 <br /> <br /> 航天科技集团五院神舟飞船总指挥何宇：（飞船绕地球）一圈的话是1.5个小时左右。一般是前三圈，每圈做两次变轨，就完成了6次变轨，然后就到达了离空间站大概50公里左右的一个瞄准点。<br /> <br /><img alt="过程|神舟十二号载人飞船将与天和核心舱交会对接" onload="javascript:ImgReSize(this)" src="https://p7.itc.cn/q_70/images03/20210617/6310f8651b7c4c2da310ed7bdb1e0aa3.jpeg" /> <br />文章图片 <br /> <br /> 神舟飞船经过约4.5个小时的飞行，就能与核心舱相见。接下来它们就要逐渐逼近，它们需要不断地确认位置关系，调整自己的姿态和速度。以前，神舟飞船只要追上目标飞行器，从后面直接对接上就可以了，但是这次，神舟飞船却要从前面与核心舱对接。<br /><b>【过程|神舟十二号载人飞船将与天和核心舱交会对接】</b><br /><img alt="过程|神舟十二号载人飞船将与天和核心舱交会对接" onload="javascript:ImgReSize(this)" src="https://p1.itc.cn/q_70/images03/20210617/a52d4fe44c954c9daa2ccd2b05a31c95.jpeg" /> <br />文章图片 <br /> <br /> 航天科技集团五院神舟飞船总设计师贾世锦：以前相当于是追着对接，现在是要先追到前面去，调头后拦截再对接，相当于这么一个过程。<br /> <br /><img alt="过程|神舟十二号载人飞船将与天和核心舱交会对接" onload="javascript:ImgReSize(this)" src="https://p6.itc.cn/q_70/images03/20210617/5048dfbb76af4d77835ce60ff9eb499e.jpeg" /> <br />文章图片 <br /> <br /> 这次神舟十二号飞船要与重达35吨的空间站天和核心舱与天舟二号货运飞船的组合体进行交会对接，而神舟飞船只有8吨重，巨大的质量差异给交会对接过程也带来新的难度。<br /> <br /><img alt="过程|神舟十二号载人飞船将与天和核心舱交会对接" onload="javascript:ImgReSize(this)" src="https://p4.itc.cn/q_70/images03/20210617/e175d6fa225349178cddc60a19b208c8.jpeg" /> <br />文章图片 <br /> <br /> 航天科技集团八院载人飞船系统副总指挥顾侧峰：对接目标的当量大了以后，对接的碰撞会更大，就算你控制比较好，对这个目标的碰撞会更大。所以说我们这次对对接机构也进行了适应性的更改，增加了可控阻尼，减少对大目标对接时的碰撞影响。<br /> <br /><img alt="过程|神舟十二号载人飞船将与天和核心舱交会对接" onload="javascript:ImgReSize(this)" src="https://p0.itc.cn/q_70/images03/20210617/f6634a39562e43b2bc8e9965368ab4dd.jpeg" /> <br />文章图片 <br /> <br /> 在对接的过程中，两个航天器的相对速度不断减小，缓缓靠近，神舟十二号飞船上有一个主动捕获装置，在对接时会提前伸出来，就在与核心舱的对接机构接触的一瞬间，紧紧抓住并拉回再锁死，最终完成交会对接。<br /> <br /><img alt="过程|神舟十二号载人飞船将与天和核心舱交会对接" onload="javascript:ImgReSize(this)" src="https://p1.itc.cn/q_70/images03/20210617/b886eea64c924cf983cd5a7355022654.gif" /> <br />文章图片 <br /> <br /> 航天科技集团八院载人飞船对接机构分系统主任设计师姚建：装在载人飞船上的叫主动对接机构，对接环主动伸出去、然后在主动对接机构上配套的有三把捕获锁，在被动对接机构上配套有三个卡板器，这个就像咱们的门栓和门锁一样，两个飞行器对接环接触上之后，捕获锁就把两套对接机构锁住了。<br /> （原题为《既要找得到又要对得准！神舟十二号载人飞船将与天和核心舱这样交会对接→》） <br /></p> <div 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