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中国将研制超音速“飞行列车” 20分钟北京到上海 敢想吗?
“高速飞行列车”项目将按照三步走战略逐步实现:第一步通过1000公里/小时运输能力建设区域性城际飞行列车交通网;第二步通过2000公里/小时运输能力建设国家超级城市群飞行列车交通网。该线路瞄准了我国长三角经济群、珠三角经济群、环渤海经济群、长江中下游经济群和成渝经济群;第三步通过4000公里/小时运输能力建设“一带一路”飞行列车交通网,最终形成一张继航天、高铁、核电之后的中国新名片。
实现“近地飞行”具有哪些保障?
联合了20多家科研机构 已拥有200多项专利
目前,世界上仅有美国两家公司以及中国航天科工集团公司等极少数企业对外宣布开展大于1000公里/小时运输系统研究。而且,国外企业的目标时速多在1000公里左右,而中国航天科工集团公司却把终极时速定在了4000公里。航天科工也是全球首个提出超声速地面运输系统的企业。“我们现在有非常好的经济条件、技术储备、人才储备、实验条件和政策环境,天时地利人和。”毛凯说,航天科工拥有丰富的重大项目系统工程实践经验和技术积累,具有大工程必备的仿真建模和大系统试验能力,以及国际一流的超声速飞行器设计能力,这些为高速飞行列车项目建设提供了重要的基础。
记者了解到,中国航天科工集团公司高速飞行列车项目联合了国内外20多家科研机构,成立了国内首个国际性高速飞行列车产业联盟,目前团队拥有相关领域的200多项专利。而且,我国高速飞行列车采用的技术路径和国外的不一样,国外采取的悬浮方式需要车轮先跑起来,达到一定速度才能悬浮起来,而我国采取的高温超导磁悬浮方式属于被动悬浮方式,没有初速度也能悬浮起来,不需要用车轮。
不过毛凯透露表示,尽管这个项目已开展相关研究论证,但与实际投入还有一段距离。项目落地还需要突破部分关键技术,如超导磁悬浮技术的工程化。此外,真空管道的研制和打造,也面临着诸如“超长距离”工艺技术的瓶颈等。
极致时速会对人体有伤害?
会按人体能承受的加速度慢慢加
毛凯说:“不存在对人体伤害这一说。”毛凯解释,“高速飞行列车”加速时,是按照人体能承受的加速度慢慢加,到一定的速度之后,就开始巡航,减速的时候,也是按照人体能承受的范围慢慢减。
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