|
|
|
|
|
Zhi Rao, Lingfeng Tang and Hui Zhang
Aiming at the problem of high vibration and high wear of centrifugal pump tongue, this paper proposes a double-tongue volute structure. Under the condition of ensuring the reliability of CFD results, the influence of various combinations of tongue and vo...
ver más
|
|
|
|
|
|
|
|
|
|
|
Ziyang Hao, Jingchao Xie, Xiaojing Zhang and Jiaping Liu
This study provides a reference for estimating the building envelope thermal performance at the initial stage of design for nearly zero-energy buildings in different climate zones. A simplified model of heat load prediction, which combines the quasi-stea...
ver más
|
|
|
|
|
|
|
|
|
|
|
Yifan Wang, Kun Jin, Xingxing Huang, Peng Lin, Zhengwei Wang, Wenliang Wang and Lingjiu Zhou
In this paper, a 1000 MW Francis turbine was used to study the influences of uneven clearance distribution caused by various radial installation deviations on the hydraulic thrust of a runner under the rated operating condition with steady-state CFD anal...
ver más
|
|
|
|
|
|
|
|
|
|
|
Witold Klimczyk and Adam Sieradzki
Modeling of Unmanned Aerial Vehicles (UAV) propellers in a global, multidisciplinary aeroacoustic optimization was investigated. The modeling consists of three aspects: geometry, aerodynamics, and aeroacoustics. Firstly, a parametric geometry model was e...
ver más
|
|
|
|
|
|
|
|
|
|
|
Feihong Yun, Dong Liu, Xiujun Xu, Kefeng Jiao, Xiaoquan Hao, Liquan Wang, Zheping Yan, Peng Jia, Xiangyu Wang and Bin Liang
Taking a subsea collet connector as an example, the contact characteristics of the sealing structure of the subsea connector under thermal?structural coupling were studied. Considering the heat transfer problem of the subsea connector in deep water, the ...
ver más
|
|
|
|
|
|
|
|
|
|
|
Dimitrios Mendrinos, Constantine Karytsas, Spyridon Karytsas, Flavio Poletto, Biancamaria Farina and Erika Barison
This paper presents correlations derived by linear regression analysis of seismic velocities VP and VS and elastic moduli EP and ES with temperature in Los Humeros superhot (SHGS) and Acoculco enhanced (EGS) geothermal systems at depths down to 3 km belo...
ver más
|
|
|
|
|
|
|
|
|
|
|
Zhiqiang Xu, Yunxian Cui, Baoliang Li, Ketong Liu, Feiting Shi and Peng Cao
A fatigue test on the failure mode of flange shafts was conducted. The propagation characteristics of the initial crack at the junction between the shaft and the flange as well as its angle effect were studied. This study developed an analysis program of...
ver más
|
|
|
|
|
|
|
|
|
|
|
Toni Varga, Tin Ben?ic, Vedrana Jerkovic ?til and Marinko Barukcic
A speed tracking control method for induction machine is shown in this paper. The method consists of outer speed control loop and inner current control loop. Model predictive current control method without the need for calculation of the weighing factors...
ver más
|
|
|
|
|
|
|
|
|
|
|
Eugen Vereschago,Vitalii Kostiuchenko,Sergii Novogretskyi
Pág. 23 - 31
A simulation model of a converter with soft switching of transistors has been created. New calculation methods and means of measuring the equivalent frequency characteristics of converting devices with negative feedback to the problems of stability analy...
ver más
|
|
|
|
|
|
|
|
|
|
|
Jasna Prpic-Or?ic, Marko Valcic and Zoran Carija
The estimation of wind loads on ships and other marine objects represents a continuous challenge because of its implication for various aspects of exposed structure exploitation. An extended method for estimating the wind loads on container ships is pres...
ver más
|
|
|
|
|
|