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浏览/检索结果: 共5条，第1-5条 帮助 限定条件 发表日期：2022    专题：兰州理工大学    第一署名单位    第一作者单位    通讯作者单位     已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择作者升序作者降序题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序 A remaining useful life prediction method based on time–frequency images of the mechanical vibration signals 期刊论文 Measurement: Journal of the International Measurement Confederation, 2022, 卷号: 202 作者:  Du, Xianjun;  Jia, Wenchao;  Yu, Ping;  Shi, Yaoke;  Cheng, Shengyi 收藏  |  浏览/下载：33/0  |  提交时间：2022/09/22 Convolution  Forecasting  Preventive maintenance  Rotating machinery  Vibrations (mechanical)  Wavelet transforms  Attention mechanisms  Continuous Wavelet Transform  Convolutional neural network  Degradation trend  Feature map  Remaining useful life predictions  Rolling bearings  Spectral feature  Time frequency  Time–frequency spectral feature map   Study for the cross-flow coupling mechanism of tandem cylinder groups at low Reynolds number 期刊论文 Ocean Engineering, 2022, 卷号: 260 作者:  Tu, Jiahuang;  He, Zhancheng;  Tan, Xiaoling;  Wang, Guanyu;  Xu, Jixiang 收藏  |  浏览/下载：27/0  |  提交时间：2022/08/09 Circular cylinders  Navier Stokes equations  Oscillating cylinders  Oscillating flow  Reynolds number  Shear flow  Vibration analysis  Vortex flow  Cross flows  Cylinder groups  Downstream cylinders  Dynamic mechanism  Planar shear flow  Tandem cylinder  Tandem cylinder group  Vibration response  Vortex dynamic mechanism  Vortex dynamics   Study on the vibration isolation performance of an open trench-wave impedance block barrier using perfectly matched layer boundaries 期刊论文 JOURNAL OF VIBRATION AND CONTROL, 2022, 卷号: 28, 期号: 3-4, 页码: 329-338 作者:  Zhou, Fengxi;  Zhou, Zhixiong;  Ma, Qiang 收藏  |  浏览/下载：7/0  |  提交时间：2022/03/01 Ground vibration isolation  open trench-wave impedance block barrier  vibration isolation effect  perfectly matched layer  finite element method   Analysis of the Influence of Tunnel Blasting Construction on Initial Concrete 期刊论文 Journal of Railway Engineering Society, 2022, 卷号: 39, 期号: 1, 页码: 73-78 and 113 作者:  Tang, Xianxi;  Xia, Dingding;  Li, Danhe;  Wang, Yaowu 收藏  |  浏览/下载：11/0  |  提交时间：2022/04/21 Blasting  Railroad tunnels  Regression analysis  Vibration analysis  Blasting construction  Blasting vibrations  Different ages  Empirical formulas  Initial concrete  Safe step distance  Tunnel construction  Tunnel engineering  Velocity threshold  Vibration velocity   Microstructure Evolution of an Al-Si Alloy During Shear-vibration Coupling Sub-rapid Solidification and the Effects of Processing Parameters 期刊论文 International Journal of Metalcasting, 2022 作者:  Zhang, Zongxu;  Chen, Tijun;  Xue, Han;  Bi, Guangli;  Ma, Ying 收藏  |  浏览/下载：13/0  |  提交时间：2022/07/20 Aluminum alloys  Shear flow  Silicon alloys  Textures  Vibrations (mechanical)  Al-alloy  Dissociation and proliferation of grain  Pouring temperatures  Primary particles  Semisolid slurries  Shear vibrations  Shear-vibration coupling sub-rapid solidification  Sub-rapid solidification  Vibration coupling  Vibration frequency