Simplified Modeling and Application of Car Side Crashworthiness Improvement

2010 ◽  
Author(s):  
Shanbin Lu ◽  
jinyan Wu ◽  
Junyuan Zhang ◽  
Yizhou Fan
Keyword(s):  
Simplified Modeling

scholarly journals Thermal Dynamic Behavior in Bi-Zone Habitable Cell with and without Phase Change Materials

Proceedings ◽  
2020 ◽  
Vol 63 (1) ◽  
pp. 41
Author(s):  
Hanae El Fakiri ◽  
Lahoucine Ouhsaine ◽  
Abdelmajid El Bouardi
Keyword(s):  
Thermal Behavior ◽  
Thermal Comfort ◽  
Phase Change ◽  
Dynamic Behavior ◽  
Phase Change Materials ◽  
Energy Performance ◽  
High Energy ◽  
Water Heater ◽  
Simplified Modeling

The thermal dynamic behavior of buildings represents an important aspect of the energy efficiency and thermal comfort of the indoor environment. For this, phase change material (PCM) wallboards integrated into building envelopes play an important role in stabilizing the temperature of the human comfort condition. This article provides an assessment of the thermal behavior of a “bi-zone” building cell, which was built based on high-energy performance (HEP) standards and heated by a solar water heater system through a hydronic circuit. The current study is based on studying the dynamic thermal behavior, with and without implantation of PCMs on envelope structure, using a simplified modeling approach. The evolution of the average air temperature was first evaluated as a major indicator of thermal comfort. Then, an evaluation of the thermal behavior’s dynamic profile was carried out in this study, which allowed for the determination of the PCM rate anticipation in the thermal comfort of the building cell.

Simplified Modeling Research of Reinforced Concrete Based on the Dynamic Stiffness Equivalence

2012 ◽  
Vol 446-449 ◽  
pp. 458-462
Author(s):  
Jie Hu ◽  
Jia Quan Feng ◽  
Xi Nong Zhang
Keyword(s):  
Reinforced Concrete ◽  
Reference Model ◽  
Dynamic Stiffness ◽  
Optimization Method ◽  
Simplified Model ◽  
Response Analysis ◽  
Reinforced Concrete Structure ◽  
Optimization Function ◽  
Nature Frequency ◽  
Simplified Modeling

This paper proposed a simplified modeling method of reinforced concrete based on the equivalence of dynamic stiffness, the parameters of simplified model were modified to make the error of nature frequency between reference model and simplified model as small as possible, and an appropriate optimization function was designed. The essentiality of the proposed method is parameter optimization, with the advantages such as fewer elements and calculation assumption. The numerical simulation result indicated that this optimization method is suitable for the dynamic response analysis of complicated reinforced concrete structure.

Simplified Modeling of Transit Corridors

1980 ◽  
Vol 106 (1) ◽  
pp. 71-84
Author(s):  
Uzi Landau ◽  
Yaron Fedorowicz
Keyword(s):  
Simplified Modeling

scholarly journals Simplified Modeling of the Evolution of Skills in a Spatially Resolved Environment

2019 ◽  
Author(s):  
Rudolf M. Füchslin ◽  
Johannes J. Schneider ◽  
Thomas Ott ◽  
Richard Walker
Keyword(s):  
Spatially Resolved ◽  
Simplified Modeling

scholarly journals A Comparison on Numerical Simulation Models for Vibrational Performances of the Wood Truss Joist Floor System

2021 ◽  
Vol 2021 ◽  
pp. 1-18
Author(s):  
Yinlan Shen ◽  
Haibin Zhou ◽  
Shuo Xue ◽  
Jinchuan Zhang
Keyword(s):  
Simulation Models ◽  
Metal Plate ◽  
Modeling Methods ◽  
Time Period ◽  
Long Time ◽  
Flexible Metal ◽  
Plate Connections ◽  
Simplified Modeling ◽  
Floor System ◽  
Vibration Performance

Wood truss joist floors are increasingly used to replace traditional solid timber joist floors in low-rise timber houses. An understanding of the vibration performance of wood truss joist floors is critical for the design and serviceability of the floors. It is difficult to model wood truss joist floors accurately because of the complicated boundary conditions and numerous sophisticated flexible connections. This paper discusses three simplified modeling methods for the wood truss joist floor system. The modeling results were validated by a series of static deflection tests and vibration modes and frequencies tests of a full-size floor. And predictive analysis of human-induced vibration of the floor was also conducted. The vibration characteristics of the wood truss joist floor were investigated. The examination of the applicability of these modeling methods was provided. The results indicate that the point loading deflection more easily affects the deflection of the adjacent joist. However, the deflection influence on other joists that are three spaces away is minimal. Walking on the wood truss joist floor produces steep vibration acceleration fluctuations at the floor center for a relatively long time period. The sheathing-to-joist connections and the metal plate connections of the joists have significant influences on the vibration response of the wood truss joist floor. The modeling method, which considers the flexible metal plate connections and flexible sheathing-to-joist connections, performs best for predicting the vibration performance of the floor.

scholarly journals Simplified Modeling of Concrete Confinement

◽  
2016 ◽  
Author(s):  
Gian Piero Lignola ◽  
◽  
Andrea Prota ◽  
Gaetano Manfredi ◽  
◽  
...  
Keyword(s):  
Concrete Confinement ◽  
Simplified Modeling
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