魏巍
作者: Wei, Wei12;He, Xu1;Zhu, Hairong3;Duan, Junfa2;Qin, Gaolin2; (1School of Mechanical Engineering, Beijing Institute of Technology, Beijing, 100081, China;2School of Mechanical Engineering, North China University of Water Resources and Electric Power, Zhengzhou, 450045, China;3School of Mechanical Engineering, Hebei University of Science and Technology, Shijiazhuang, 050018, China)
出处: Sustainability (Switzerland) 2022 Vol.14 No.10
摘要: Detailed hydrogen–air chemical reaction mechanisms were coupled with the three-dimensional grids of an experimental hydrogen internal combustion engin ...
作者: Kai Wang1,2;Wei Wei1,2;Danyang Wang1,2;Pengyu Wang1;Weilin Xie1,2;Yi Dong1,2; (1Beijing Institute of Technology, Beijing, China 2Yangtze Delta Region Academy of Beijing Institute of Technology, Jiaxing, China)
出处: IEEE Photonics Journal 2022 P1-6
关键词: Delays;Clocks;Voltage-controlled oscillators;Broadband antennas;Optical fibers;Timing jitter;Broadband communication
摘要: We present a time-stable receiving system for broadband signals transmitted via a 25 km fiber optic link. The timing jitter of the signal induced by t ...
作者: Wei, Wei1, 2; Su, Jian-jun2; Huang, Feng-lei1; (1State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing; 100081, China;2Xi\'an Modern Chemistry Research Institute, Xi\'an; 710065, China)
出处: Process Safety and Environmental Protection 2022 Vol.167 P126-145
关键词: Asymmetric load;Close-in explosion;Damage assessment;P-I diagram;SDOF model
摘要: This paper develops the pressure-impulse (P-I) diagram to conduct damage assessment of simply supported reinforced concrete (RC) beams under close-in ...
作者: He, Xu2, 3; Xu, Kai2, 3; Xu, Yuxuan2, 3; Zhang, Zhao2, 3; Wei, Wei1, 2; (1School of Mechanical Engineering, North China University of Water Resources and Electric Power, Zhengzhou, China;2School of Mechanical Engineering, Beijing Institute of Technology, Beijing, China;3Beijing Electric Vehicle Collaborative Innovation Center, Beijing, China)
出处: SSRN 2022
摘要: Diesel engine cold-start performances are closely related to ignition delay which in turn is strongly influenced by nozzle diameter ( D noz ). In this ...
作者: 闫清东1,2;,王东升1;,王羽泽1;,胡乃鹏1;,魏巍1; (1北京理工大学机械与车辆学院;2北京理工大学车辆传动国家重点实验室)
出处: 2022中国汽车工程学会年会暨展览会 2022
会议录: 2022中国汽车工程学会年会论文集(4)
关键词: 气控液力缓速器;噪声;多孔介质材料;性能预测
摘要: 气控液力缓速器在重型车辆的缓速制动过程中会产生明显的排气噪声,为在较宽频域范围内有效地抑制气控液力缓速器排气管路末端的噪声以提升整车的NVH性能,采用多孔介质吸声材料实现对高频和中频噪声的抑制作用。构建多孔介质吸声性能预测模型,对比分析是否安装吸声装置和安装不同特征参数吸声装置的气控缓速器制动排气过 ...
发明人: 刘城,郭猛,金宸,张嘉华,柯志芳,闫清东,魏巍
申请人: 北京理工大学
申请号: 202210438389.2
申请日期: 2022.04.21
摘要: 本发明提供一种高温高速旋转叶轮机械瞬态流场测试系统,采用接触式测量,将用于采集瞬态内流场的传感器预埋在被试叶轮机械的叶片中,避免了传感器对内流场的扰动;同时,传感器的多重保护结构和填充方式解决了恶劣环境下传感器被冲击和破碎问题,也便于传感器的拆装。为能够采用接触式测量的方式对瞬态内流场进行测试,采用 ...
发明人: 刘城,郭猛,刘世琦,柯志芳,张嘉华,闫清东,魏巍
申请人: 北京理工大学
申请号: 202210350749.3
申请日期: 2022.04.02
摘要: 本发明提供一种可视化粘性油液非定常空化观测试验台,可用于粘性油液如液压油的空化的发生和观测。包括:流体动力源、温控单元、空化发生单元、传感器单元以及测控单元;流体动力源作为供油单元,用于向空化发生单元提供具有设定压力和流速的粘性油液,并形成循环的粘性油液流动回路;温控单元用于对流体动力源中的粘性油液 ...
发明人: 刘城,刘世琦,郭猛,张嘉华,闫清东,魏巍
申请人: 北京理工大学
申请号: 202210422520.6
申请日期: 2022.04.21
摘要: 本发明提供一种组合式空化发生及观测装置,不仅能够满足普通单翼型空化流场观测试验,还能够实现不同数量翼型组合交互的空化发生及观测试验,模拟多叶轮机械(如液力变矩器)的内部流场等。包括:收缩段组件、空化观测段组件、扩散段组件和调节组件;调节组件包括:收缩段曲面调节机构、翼型调节机构和扩散段曲面调节机构; ...
作者: Tao, Tianlang1; Ke, Zhifang1; Wei, Wei2; Liu, Cheng2; Yan, Qingdong2
出处: ASME Turbo Expo 2022: Turbomachinery Technical Conference and Exposition, GT 2022 Rotterdam, Netherlands 2022
作者: Liu Cheng1,2;Guo Meng1;Yan Qingdong1,3;Wei Wei1,2 (1School of Mechanical Engineering, Beijing Institute of Technology, Beijing, 100081;2Beijing Institute of Technology, Chongqing Innovation Center, Chongqing, 401122;3Advanced Technology Research Institute, Beijing Institute ofTechnology, Ji'nan, 250307)
出处: Chinese Journal of Mechanical Engineering 2022 第35卷 第3期 P49
关键词: Torque converter;Cavitation;CFD,Transient flow
摘要: Cavitation inside a torque converter induces noise, vibration and even failure, and these effects have been disregarded in previous torque converter d ...