|
|
|
|
|
Weixing Yuan and Xiaoyang Zhang
Severe mode switching is often observed when the PK-method is used in the flutter analysis of complex aircraft configurations, in particular when nearly 100 vibrational modes are considered. In the commonly used commercial software NASTRAN, the resulting...
ver más
|
|
|
|
|
|
|
|
|
|
|
Qiaodan Luo, Shengfeng Zhao, Shiji Zhou, Huafeng Xu and Xiaoying Sheng
The research is based on a full 3D model of a medium variable bypass ratio compression system. The effects of core-driven fan stage (CDFS) VIGV adjustment and forward variable area bypass injector (FVABI) adjustment on the internal flow and component mat...
ver más
|
|
|
|
|
|
|
|
|
|
|
Jin Wei, Wei Liu, Peixin Gao and Yujie Ding
In this paper, an analytical dynamic model is proposed for vibration suppression of a multi-span continuous bridge by tuned mass dampers (TMDs). Firstly, the partial differential equations (PDEs) that govern the motion of the multi-span continuous bridge...
ver más
|
|
|
|
|
|
|
|
|
|
|
Tao Jiang, Yize Sun, Hai Huang, Hongde Qin, Xi Chen, Lingyu Li, Zongyu Zhang and Xinyue Han
Autonomous underwater manipulation is very important for the robotic and intelligence operations of oceanic engineering. However, a small target often involves limited features and results in inaccurate visual matching. In order to improve visual measure...
ver más
|
|
|
|
|
|
|
|
|
|
|
Aqian Yan, Xiaofeng Luo, Lin Tang and Sanxia Du
Agricultural extension services play an important role in promoting pesticide reduction and green production, although the mismatch between farmers? needs and service supply in rural China seriously affects the application and promotion of biological pes...
ver más
|
|
|
|
|
|
|
|
|
|
|
Jie Cao, Ru-Xuan Zhang, Chao-Qiang Liu, Yuan-Bo Yang and Chin-Ling Chen
Daily load forecasting is the basis of the economic and safe operation of a power grid. Accurate prediction results can improve the matching of microgrid energy storage capacity allocation. With the popularization of smart meters, the interaction between...
ver más
|
|
|
|
|
|
|
|
|
|
|
Jiandong Duan, Shuai Wang and Li Sun
In this paper, a backstepping sliding mode controller based on a nonlinear disturbance observer (NDO-SMC) is proposed to realize the high-performance speed control of a permanent magnet synchronous motor (PMSM). This paper compares the advantages and dis...
ver más
|
|
|
|
|
|
|
|
|
|
|
Zhengya Qi, Xinhao Ding, Wenwen Yang and Jianxin Chen
In this paper, a compact broadband planar inverted-F antenna (PIFA) with dual-resonant modes (TM1/2,2 and TM3/2,0) is proposed for 5G applications. By loading a pair of horizontal slots on the patch, the TM3/2,0 mode can be shifted downward and combined ...
ver más
|
|
|
|
|
|
|
|
|
|
|
Gang Xue, Jian Qin, Zhenquan Zhang, Shuting Huang and Yanjun Liu
To obtain the optimal mooring mode and the best-matching wave condition of an eccentric rotor wave energy converter (ERWEC), a physical model of the ERWEC was developed. Ten mooring modes and eight wave conditions were set up. Several experiments were ca...
ver más
|
|
|
|
|
|
|
|
|
|
|
Priyanka Singh, Rajendra kumar nagaria
Pág. 12 - 28
This study aims to present a new resistor-less current-mode multi-input single-output universal filter. The current-mode?s design approach is used to obtain the proposed circuit. This circuit employs a single differential voltage extra-X current controll...
ver más
|
|
|
|
|
|