|
|
|
|
|
Mohsen Shamsaei, Alan Carter and Michel Vaillancourt
Construction and demolition waste (CDW) materials account for a considerable part of waste materials throughout the world. As these materials are not usually recycled, reusing them in construction projects is of major significance. In this study, recycle...
ver más
|
|
|
|
|
|
|
|
|
|
|
Daidong Guo, Ningning Cai, Guoping Wu, Fangmin Xie, Shouhong Tan, Nan Jiang and He Li
Polycrystalline diamond (PCD)-coated mechanical seal rings were prepared by hot filament chemical vapor deposition (HFCVD) on graphite-loaded silicon carbide (GSiC) substrates. From the initial deposition process, the diamond first nucleated and then gre...
ver más
|
|
|
|
|
|
|
|
|
|
|
Raul Simões, Bruno Martins, José Santos and Victor Neto
A mechanical seal promotes the connection between systems or mechanisms, preventing the escape of fluids to the exterior. Nonetheless, due to extreme working conditions, premature failure can occur. Diamond, due to its excellent properties, is heralded a...
ver más
|
|
|
|
|
|
|
|
|
|
|
João Miguel Peres Medeiros and Luigi Di Sarno
A greener and more sustainable option is proposed to shift the construction paradigm of high embedded carbon values in concrete and the frequency of repairs when it cracks. Using low-carbon concrete with a bacterial self-healing agent can reduce the embe...
ver más
|
|
|
|
|
|
|
|
|
|
|
Rentong Chen, Chao Zhang, Shaoping Wang and Li Hong
Reliability estimation for key components of a mechanical system is of great importance in prognosis and health management in aviation industry. Both degradation data and failure time data contain abundant reliability information from different sources. ...
ver más
|
|
|
|
|
|
|
|
|
|
|
Rodolphe Bolot, Delphine Aussavy and Ghislain Montavon
The presence of defects such as voids, inter-lamellar porosities or cracks causes a decrease in the effective thermal conductivity of plasma-sprayed coatings as well as a decrease in corresponding mechanical properties, such as the Young?s modulus. In ge...
ver más
|
|
|
|
|
|
|
|
|
|
|
Zhen Xu, Lianjiang Xu, Junfeng Sun, Meihong Liu, Taohong Liao and Xiangping Hu
Flexible support cylindrical gas film seals (CGFSs) adapt well to rotor whirling and have a good gas lubrication effect during thermal deformation. However, when a CGFS operates under the ?three high? (high interface slip speed, high-pressure differentia...
ver más
|
|
|
|
|
|
|
|
|
|
|
Marko Hohol,Myroslav Sanytsky,Tetiana Kropyvnytska,Adriana Barylyak,Yaroslav Bobitski
Pág. 6 - 14
This study has established the impact of a nano-???2 P25 modifier and a nanocomposite based on titanium dioxide, doped with sulfur and carbon dioxide (???2/S,C), on the photocatalytic, mechanical properties and the structural formation of cement mortars....
ver más
|
|
|
|
|
|
|
|
|
|
|
Hongxia Li, Tianyang Yang, Xuewen Guo, Yupeng Wu, Jun Yan and Qingzhen Lu
Deep-water flexible composite pipes have been widely employed in the domain of deep-water oil and gas transportation, and high-density polyethylene (HDPE) is used to seal the inner sheath of internal oil and gas media containing H2S and CH4, due to its f...
ver más
|
|
|
|
|
|
|
|
|
|
|
Weidong Cao, Xinyu Yang and Zhixiang Jia
In order to study the influence of a balance hole?s diameter on the cavitation performance of low specific-speed centrifugal pumps, a centrifugal pump with a specific speed of 0.301 was selected as the research object. The pump?s cavitation performance, ...
ver más
|
|
|
|
|
|
|
|
|
|
|
Yicheng Yang, Jiaqi Chang, Zhaoguo Mi and Weihua Yang
Radial cracks appear in the labyrinth seal fins of the shrouded turbine blade of an aero-engine during service. To clarify the influence rule of rubbing force on crack initiation, a high-speed rubbing test bench and a numerical calculation model are esta...
ver más
|
|
|
|
|
|
|
|
|
|
|
Vladimir Paygin, Edgar Dvilis, Sergey Stepanov, Oleg Khasanov, Damir Valiev, Timofei Alishin, Maurizio Ferrari, Alessandro Chiasera, Vyacheslav Mali and Alexander Anisimov
The efficiency of using the collector pressing scheme in the Spark Plasma Sintering (SPS) process has been confirmed in improving the optical, physical, and mechanical properties of yttria-stabilized zirconia (YSZ) ceramics with an increased shape factor...
ver más
|
|
|
|
|
|
|
|
|
|
|
György Szabó, Károly Váradii
Pág. 148 - 157
Primary aim of this paper is to investigate the mechanical behavior of an O-ring seal made of NBR rubber material using finite element method. Further aim is to identify the O-ring?s critical locations where it can fail under normal operating conditions....
ver más
|
|
|
|
|
|
|
|
|
|
|
Szandra Éva Mikó
Pág. 50 - 57
Friction is present in most mechanical systems. The aim of this paper is to analyse friction between a pneumatic cylinder and its piston seal using the finite element method (FEM). The high-fidelity numerical model used real geometry and material charact...
ver más
|
|
|
|
|
|
|
|
|
|
|
Anitha Kumari Azmeera, Prakash Jadhav and Chhaya Lande
Upgrading abradable or wearable coatings in the high-temperature zone of aero engines is advised to increase the efficiency and high-density power in gas turbine engines for military or commercial fixed-wing and rotary-wing aircraft. The development of t...
ver más
|
|
|
|
|
|
|
|
|
|
|
Yingyong Zou, Mukai Wang, Duhui Lu, Yongde Zhang, Zili Xu and Yeyin Xu
In the paper, nonlinear vibration characteristics of a rotor system are investigated. Such a nonlinear rotor system is subjected to brush seal forces, which are obtained by integrating the bristle force along the entire ring. The nonlinear brush seal rot...
ver más
|
|
|
|
|
|
|
|
|
|
|
Hyo Seo Kwak, Hansaem Seong, Rivaldo Mersis Brilianto and Chul Kim
In combined cycle power plants (CCPPs), the bypass butterfly valve is a key component to facilitate regulation of exhaust gas energy available at the turbine and to not produce too much boost pressure. The conventional damper valve causes leakage, back f...
ver más
|
|
|
|
|
|