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著名空气动力学和船舶流体力学专家吴德铭逝世
Xin Lang Cai Jing· 2026-01-02 16:23
智通财经2026-01-02 21:47:36 智通财经记者 岳怀让 国际著名空气动力学和船舶流体力学专家、第三届国务院学位委员会学科评议组成员、哈尔滨工程大学 原校长吴德铭同志,因病医治无效,于1月1日17时在北京逝世,享年88岁。 吴德铭长期从事空气动力学和流体力学的教学与科研。1978年获全国科学大会奖,上世纪80年代应邀赴 美国加州理工学院进行非线性波浪理论研究并取得重大成果。发表的"运动表面压力扰动产生的三元非 线性长波"解决了流体力学界重大问题。这一创造性成果被国际学术界许多研究论文引用,得到国内外 同行专家的公认并给予高度评价。曾多次应邀赴国外作专题学术报告。曾任中国造船工程学会常务理 事、黑龙江省造船学会理事长、黑龙江省航空学会副理事长、黑龙江省科协副主席。 本 期 编 辑 邢潭 吴德铭 吴德铭出生于1938年5月14日,江苏省吴县人,1961年4月毕业于中国人民解放军军事工程学院空军工程 系空气动力学专业,1963年6月加入中国共产党。自毕业起留校任教,毕生躬耕于祖国国防科技高等教 育事业,始终与哈尔滨工程大学的建设发展休戚与共、紧密相依。历任助教、讲师、副教授、教授、博 士生导师、校学术委 ...
极简创新还是致命隐患? 特斯拉隐藏式车门面临拷问
Xin Lang Ke Ji· 2025-12-26 01:39
隐藏式门把手设计,原本是特斯拉引以为傲的标志性设计,如今正在面临监管机构和公众前所未有的质 疑。这项前卫炫酷的极简设计,究竟是必要的创新,还是致命的隐患? 监管调查步步推进 本周一,美国国家公路交通安全管理局(NHTSA)宣布对特斯拉Model 3的紧急车门释放机制展开缺陷调 查,此次调查约涉及18万辆2022款Model 3汽车。 需要强调的是,按照NHTSA的流程,这起调查目前还处在接到投诉,进行缺陷调查的阶段。未来3到6 个月时间,NHTSA将进行技术评估,收集和审查与问题相关的数据,确定问题发生频率,评估风险严 重性,最终决定是否展开正式调查。 更令人震惊的是,彭博社又发布了一项关于特斯拉隐藏门把手的重磅调查。调查发现,过去十年时间, 至少有15人在车祸后因无法打开特斯拉车门而死亡,而其中超过一半的死亡发生在过去一年时间。 这项曾被视为汽车设计革命的创新,如今正在演变成一场信任危机。隐藏式车门把手,究竟是否存在致 命隐患,还需要美国乃至全球监管部门的调查认定。 美国NHTSA的最新调查源于一名特斯拉车主凯文·克劳斯(Kevin Clouse)的投诉。2023年,他的Model 3 在行驶中起火。但他却 ...
小米 YU7 正式亮相!「天际屏」首秀,雷军的「豪华高性能 SUV」来了
Sou Hu Cai Jing· 2025-05-22 14:33
Core Viewpoint - Xiaomi has launched its new electric SUV, the YU7, during its 15th anniversary event, showcasing advanced design and technology features aimed at expanding its automotive market presence [2][53]. Design and Aesthetics - The YU7 features a unique design inspired by luxury cars, with a focus on proportions such as a 3:1 wheelbase ratio and a 1.3:1 head-to-body ratio, contributing to its aesthetic appeal [6][8]. - The vehicle is available in multiple colors, including a gem-inspired green and a futuristic titanium color, achieved through advanced painting techniques [4][10]. - The design has drawn comparisons to the Ferrari Purosangue, highlighting its distinctive proportions and luxury appeal [10][12]. Technological Innovations - The YU7 incorporates a "sky screen" projection technology that enhances the driving experience by displaying information directly in the driver's line of sight, with a peak brightness of 1200 nits [32][36]. - The vehicle features over 40 aerodynamic optimizations, resulting in a reduced drag coefficient of 0.245Cd and an extended range of 836 km for the standard version [20][48]. Performance Specifications - The YU7 is offered in three versions: a standard rear-wheel drive, a dual-motor all-wheel drive Pro version, and a Max version, with power outputs ranging from 235 kW (320 hp) to 508 kW (690 hp) [46][49]. - The vehicle is equipped with a large 96.3 kWh battery, enabling it to achieve significant ranges, making it a leader in the mid-to-large electric SUV segment [48]. Market Positioning and Future Plans - The launch of the YU7 is a strategic move for Xiaomi to solidify its brand presence in the competitive SUV market, following the success of its previous model, the SU7, which sold 28,000 units [53][55]. - Xiaomi plans to expand its product lineup with a range of vehicles, including a potential entry into the budget segment with a range-extended SUV expected by 2026 [55][57].