Authentication email has already been sent, please check your email box: and activate it as soon as possible.
You can login to My Profile and manage your email alerts.
If you haven’t received the email, please:
|
|
There are 4 papers published in subject: since this site started. |
Results per page: |
Select Subject |
Select/Unselect all | For Selected Papers |
Saved Papers
Please enter a name for this paper to be shown in your personalized Saved Papers list
|
1. Experiment research on influence of guide vane on vortex-induced vibration characteristics of bluff section | |||
BAI Hua,WANG Han,WEI Yangyang | |||
Transportation Engineering 20 June 2022 | |||
Show/Hide Abstract | Cite this paper︱Full-text: PDF (0 B) | |||
Abstract:In order to study the effect of guide vane on the vortex-induced vibration characteristics of blunt steel box girder section, this paper first compares the vortex-induced vibration response of the original blunt steel box girder section and the blunt box girder with three different sizes and forms of guide vanes by wind tunnel test. Secondly, the vortex-induced vibration responses of blunt box girders with three different forms and sizes of guide vanes are compared by numerical simulation. Finally, through the comparative analysis of the flow field of the original blunt body section and the inverted L-shaped guide vane with different sizes, the reason for the vortex vibration phenomenon of the blunt body section is found. The results show that the horizontal guide plate has good vibration suppression effect on vertical bending vortex vibration, but it will increase the vibration amplitude of torsional vortex vibration. The inverted L-shaped guide vane has a very obvious suppression effect on the torsional vortex vibration and vertical bending vortex vibration of the blunt body section. By comparing the flow field, it is found that the vortex at the top of the section is eliminated, and the large-scale vortex at the tail is decomposed into smaller-scale vortex, so as to achieve the purpose of suppressing vortex vibration. | |||
TO cite this article:BAI Hua,WANG Han,WEI Yangyang. Experiment research on influence of guide vane on vortex-induced vibration characteristics of bluff section[OL].[20 June 2022] http://en.paper.edu.cn/en_releasepaper/content/4758007 |
2. Tradable credits for congestion management with mixed equilibrium behaviors | |||
ZHAO Hui,ZHANG Cuiping,SUN Huijun,GAO Ziyou | |||
Transportation Engineering 22 November 2012 | |||
Show/Hide Abstract | Cite this paper︱Full-text: PDF (0 B) | |||
Abstract:In this paper, we investigate the tradable credit scheme for a transportation system with multiple equilibrium behaviors in congestion management. The target system contains user equilibrium (UE), Cournot-Nash equilibrium (CNE) and market equilibrium (ME) simultaneously. The UE-CNE and ME conditions can be formulated into an equivalent Variational Inequality Problem (VIP) and the solution's existence and uniqueness properties are discussed. Furthermore, the uniqueness of credit price is also presented. By transferring the tradable credit design problem into an equivalent quadratic programming problem, we design an appropriate tradable credit scheme to decentralize system optimal network flow patterns. Applications of the proposed model are illustrated with numerical results. | |||
TO cite this article:ZHAO Hui,ZHANG Cuiping,SUN Huijun, et al. Tradable credits for congestion management with mixed equilibrium behaviors[OL].[22 November 2012] http://en.paper.edu.cn/en_releasepaper/content/4495617 |
3. Mortar fatigue model for meso-mechanical mixture design of ravelling resistant porous asphalt concrete | |||
L.T. Mo,M. Huurman,S.P. Wu,A.A.A. Molenaar | |||
Transportation Engineering 30 October 2012 | |||
Show/Hide Abstract | Cite this paper︱Full-text: PDF (0 B) | |||
Abstract:This paper presents the development of a practical mortar fatigue model on the basis of the dissipated energy concept. A specially designed test setup was developed for characterization of mortar fatigue at meso-scale by means of Dynamic Shear Rheometer (DSR). Test results showed that mortar fatigue models based on the dissipated energy concept can be developed for the purpose of life predictions under complex loading conditions. The dissipated energy per cycle in the initial phase of fatigue tests is a much more practical indicator for fatigue life determination purposes than the total energy dissipated during a fatigue test. Since a mortar fatigue model based on the initial dissipated energy per cycle was adopted, effects of complex stress and strain signals can be taken into account. | |||
TO cite this article:L.T. Mo,M. Huurman,S.P. Wu, et al. Mortar fatigue model for meso-mechanical mixture design of ravelling resistant porous asphalt concrete[OL].[30 October 2012] http://en.paper.edu.cn/en_releasepaper/content/4493559 |
4. Road structures, traffic demand and flow characteristics at inhomogeneous urban freeway sections | |||
HE Shuyan,GUAN Wei | |||
Transportation Engineering 25 February 2011 | |||
Show/Hide Abstract | Cite this paper︱Full-text: PDF (0 B) | |||
Abstract:IRoad inhomogeneities such as on- and off-ramps, lane increasing and decreasing are potential bottlenecks. Capacity of urban freeway during peak period is affected by these complex road structure and high traffic demand. Since the dense inhomogeneities are close to each other, investigation aiming at describing integrated effects of road inhomogeneities is needed. In this paper, based on real traffic data of Beijing urban freeway, relation between traffic demand, road structure and lane-specified traffic characteristics are investigated. It is turned out that the main reason for capacity decrease at peak period is fluctuations induced by competition between main road and ramp. However, on-ramp and off-ramp are different in the way for triggering a capacity drop. Based on empirical investigation, mathematical descriptions for congestion evolution process are developed for further modelling. | |||
TO cite this article:HE Shuyan,GUAN Wei. Road structures, traffic demand and flow characteristics at inhomogeneous urban freeway sections[OL].[25 February 2011] http://en.paper.edu.cn/en_releasepaper/content/4412503 |
Select/Unselect all | For Selected Papers |
Saved Papers
Please enter a name for this paper to be shown in your personalized Saved Papers list
|
|
Results per page: |
About Sciencepaper Online | Privacy Policy | Terms & Conditions | Contact Us
© 2003-2012 Sciencepaper Online. unless otherwise stated