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Gun Park, Hyungchul Yoon and Ki-Nam Hong
When damaged by an earthquake, a general structure suffers only primary damage such as in the structure?s collapse, whereas a fluid storage structure can cause secondary damage such as environmental contamination or personal injury due to leakage of its ...
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Mária Zedníková, Sandra Orvalho, Marie Fialová and Marek C. Ruzicka
The paper presents a brief overview of experiments on volumetric mass transfer coefficient in bubble columns. The available experimental data published are often incomparable due to the different type of gas distributor and different operating conditions...
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Jiahao Liu, Yinghong Wang, Xinyang Li and Junhao Cong
A new method for determining the burning rate of a solid propellant, called the Impulse Method, is proposed in this paper. It is based on the proportional relationship between the impulse generated and the mass of the burned propellant. The pressure?time...
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Yuting Chen, Zhun Cheng and Yu Qian
In order to improve the working quality of wet clutch switching in an agricultural tractor, in this paper, we took a power shift system composed of multiple wet clutches as the research object for full-factorial performance measurement, multi-factor anal...
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Siqi Peng, Huibo Zhang, Chaoqun Qi, Jialiang Xu, Rui Ma and Shijie Dai
During the contact between the detumbling end-effector and large non-cooperative target, the recognition of impact pressure distribution is important for estimating the success rate of detumbling mission. To figure out the pressure trends, the ground exp...
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Umair Khan, William Pao and Nabihah Sallih
Gas?liquid two-phase flow is very common in industrial pipelines. Flow regime identification is the first step to design, analyze, and operate the gas?liquid system successfully. The purpose of this study is to develop a methodology for identification of...
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Mohsin Ehsan, Usman Ali, Farooq Sher, Hafiz M. Abubakar and Muhammad Fazal Ul Basit
Stabilization of condensate is a highly energy-consuming process compared to other oil and gas processes. There is a need to reduce this energy consumption. Therefore, the present work aims to simulate the stabilization unit in terms of available energy ...
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Qin Zhong, Yonghua Fan and Wenbin Wu
For hypersonic-vehicle fairing separation, the reliable separation of the fairing and rapid suppression of the separation disturbance are required in scenarios where there is high dynamic pressure and there are abrupt changes in the aerodynamic shape of ...
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Zhan-Feng Chen, Hui-Jie Wang, Zhiqian Sang, Wen Wang, He Yang, Wei-Ming Meng and Yu-Xing Li
Cylindrical shells are principal structural elements that are used for many purposes, such as offshore, sub-marine, and airborne structures. The nonlinear mechanics model of internal blast loading was established to predict the dynamic blast pressure of ...
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Zhaolong Ge, Jianyu Zhong, Jianguo Zhang, Yingwei Wang, Youchang Lvu and Sai Zhang
Slotting directional hydraulic fracturing is a new method for improving permeability of a coal seam in underground coal mines that can solve problems related to non-uniform permeability enhancement in the seam. A slotting nozzle is the key to this techno...
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Daqing Zhou, Huixiang Chen and Languo Zhang
The transient characteristic of the power-off process is investigated due to its close relation to hydraulic facilities’ safety in a pumped storage hydropower (PSH). In this paper, power-off transient characteristics of a PSH station in pump mode w...
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Zheng Liu, Jun Liu, Xianqi Xie, Mengyang Zhen, Yue Wang, Chen Ou and Haowen Zheng
The nature of the fracture and fragmentation processes in concrete medium under blast loading is the transformation of the medium from continuum to discontinuity. Coupled with the significant rate correlation of concrete medium, its mechanical behavior p...
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Linfeng Su, Jinbo Wang and Hongbo Chen
The mission of hypersonic vehicles faces the problem of highly nonlinear dynamics and complex environments, which presents challenges to the intelligent level and real-time performance of onboard guidance algorithms. In this paper, inverse reinforcement ...
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Lei Jin and Yingjie Li
An attitude control strategy for an under-actuated spacecraft with two reaction wheels is proposed, using the active assistance of solar radiation pressure torque. By changing the rotation angles of the solar panels, the magnitude and direction of the so...
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Wanli Yang, Yang Dou, Junwu Qin, Yuankang Yang, Yuzhi Zhang and Weiyong Zhang
Entrapped air in the chambers of a T-girder bridge generates a considerably large vertical force which is harmful to the safety of the bridge superstructure. The contribution of the entrapped air is not considered when calculating flood force in the rela...
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Kaidong Tao, Xueqian Zhou and Huilong Ren
Due to the convenience and flexibility in modeling complex geometries and deformable objects, local ghost particles methods are becoming more and more popular. In the present study, a novel local semi-fixed ghost particles method is proposed for weakly c...
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Kaidong Tao, Xueqian Zhou and Huiolong Ren
In order to achieve stable and accurate sloshing simulations with complex geometries using Smoothed Particle Hydrodynamic (SPH) method, a novel improved coupled dynamic solid boundary treatment (SBT) is proposed in this study. Comparing with the previous...
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Zhi Cai, Meilin Ji, Qing Mi, Bowen Yang, Xing Su, Limin Guo and Zhiming Ding
The urban rail transit stations are an important part of an urban transit system. Scientific and reasonable location of rail transit station can greatly alleviate traffic pressure. The number of people in the surrounding area of a rail transit station is...
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Yang Pan, Qi Yuan, Gongge Huang, Jiawei Gu, Pu Li and Guangyu Zhu
The purpose of this study was to investigate the characteristics of the blade tip excitation forces represented as the rotordynamic coefficients (stiffness and damping coefficients) in an unshrouded turbine using the three-dimensional computational fluid...
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Walter A. Silva
The origins, development, implementation, and application of AEROM, NASA?s patented reduced-order modeling (ROM) software, are presented. Using the NASA FUN3D computational fluid dynamic (CFD) code, full and ROM aeroelastic solutions are computed at seve...
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