Discussing the Effect of Different Modeling Methods on Bus Frame Modal Analysis Based on the Experiment

2010 ◽  
Vol 145 ◽  
pp. 577-583
Author(s):  
Tian Han ◽  
Ling Jin ◽  
Zhong Jun Yin
Keyword(s):  
Modal Analysis ◽  
Modeling Method ◽  
Truss Structure ◽  
Frame Structure ◽  
Modeling Methods ◽  
Type Complex ◽  
New Type

Using ANSYS to calculate modal of truss structure, which is similar to the bus frame, proposing the effect of different modeling methods on modal results and initial selecting the appropriate modeling method to this new type complex bus frame. The above-mentioned methods are used to create actual bus frame models and obtain the corresponding modal results. Then testing the accuracy of the results by modal experiment, to establish an accurate modeling method at last, this is laying the foundation for other analysis, and also providing reference for the similar frame structure.

Base-Isolated Multi-Storey Reinforced Concrete Frame Structure Modal Analysis

2012 ◽  
Vol 204-208 ◽  
pp. 869-871
Author(s):  
Cai Hua Wang ◽  
Hui Jian Li ◽  
Jian Feng Wu
Keyword(s):  
Reinforced Concrete ◽  
Modal Analysis ◽  
Seismic Isolation ◽  
Base Isolation ◽  
Frame Structure ◽  
Reinforced Concrete Frame ◽  
Concrete Frame ◽  
Reinforced Concrete Frame Structure ◽  
Before And After ◽  
Isolation Device

The multi-storey reinforced concrete frame structure used lead rubber pad as the base isolation device. The paper had modal analysis of base-isolated multi-storey reinforced concrete frame structure using the ANSYS software. Comparing the frequency and vibration mode before and after isolation under El-Centro wave, It concluded the leader rubber pad have seismic isolation effect for multi-storey reinforced concrete frame structure .

scholarly journals Operational Modal Analysis of the Laboratory Steel Truss Structure

2019 ◽  
Vol 40 ◽  
pp. 800-807
Author(s):  
Lukáš Maliar ◽  
Daniela Kuchárová ◽  
Ľuboš Daniel
Keyword(s):  
Modal Analysis ◽  
Operational Modal Analysis ◽  
Truss Structure ◽  
Steel Truss

A Modeling Method of the Branch Probability of the Temperature-Induced SGTR Phenomenon

2017 ◽  
Author(s):  
Zibin Liu ◽  
Dingqing Guo ◽  
Bing Zhang ◽  
Jinkai Wang
Keyword(s):  
Steam Generator ◽  
Nuclear Power ◽  
Power Plants ◽  
Modeling Method ◽  
Radioactive Material ◽  
Severe Accident ◽  
Steam Generator Tube ◽  
Modeling Methods ◽  
Radioactive Release ◽  
Level 2

The phenomenon of temperature-induced steam generator tube rupture (TI-SGTR) is a typical phenomenon in the severe accident process of nuclear power plants. The occurrence of the phenomenon may result in the radioactive material bypass the containment, causing a large radioactive release. This paper investigates modeling methods of the phenomenon of temperature-induced SGTR in level 2 PSA and presents an optimizing modeling method to calculate the probability of branching probability of TI-SGTR, aiming at improving the rationality and veracity of level 2 PSA.

Optical Differentiation Method of Materials Based on the Modeling of Scattering Characteristics

2011 ◽  
Vol 179-180 ◽  
pp. 459-463
Author(s):  
Shi Xue Xu ◽  
Ling Fei Xu ◽  
Yan Ru Chen
Keyword(s):  
Light Source ◽  
Optical Method ◽  
Scattered Light ◽  
Modeling Method ◽  
Experimental Result ◽  
Natural Light ◽  
Modeling Methods ◽  
Differentiation Method ◽  
Measuring Experiment

Differentiation of materials in optical method is significant and widely applied in engineering. The target of detection is usually not a light source, therefore, we differentiate materials of target by analyzing the information of the scattered light from the surface of the target which is lighten by given light source or natural light. The analysis of the information in the scattered light becomes the most important issue in this condition. Based on the discussion of several kinds of optical differentiation method of materials, a measuring experiment has been developed to the scattering characteristics of given materials which could be described by the modeling given in this paper. The experimental result indicates that the application of optical differentiation method of materials could be widely expanded by using suitable materials’ scattering characteristics modeling method. Relative modeling methods of material scattering characteristics and their possibility of applying in materials differentiation engineering are also be discussed.

Modeling and verification of the equivalent circuit for high temperature superconducting partial-core transformer with ReBCO-coated conductors

2018 ◽  
Vol 37 (3) ◽  
pp. 1228-1243
Author(s):  
Daoyu Hu ◽  
Jianwen Zhang ◽  
Feng Gu ◽  
Zhuyong Li
Keyword(s):  
High Temperature ◽  
Equivalent Circuit ◽  
Modeling Method ◽  
Coated Conductors ◽  
Ac Losses ◽  
Content Type ◽  
High Temperature Superconducting ◽  
Iterative Computation ◽  
Core Losses ◽  
New Type

Purpose The purpose of this study is to propose a modeling method of the equivalent circuit for a new type of high-temperature superconducting partial-core transformer (HTS-PCT) made of ReBCO-coated conductors. Design/methodology/approach The modeling process is based on the “Steinmetz” equivalent circuit. The impedance components in the circuit are obtained by the calculations of the core losses and AC losses of the HTS windings by using theoretical methods. An iterative computation is also used to decide the equivalent resistances of the AC losses of the primary and secondary HTS windings. The reactance components in the circuit are calculated from the energy stored in the magnetic fields by finite element method. The validation of the modeling method is verified by experimental results Findings The modeling method of the equivalent circuit of HTS-PCT is valid, and an equivalent circuit for HTS-PCT is presented. Practical implications The equivalent circuit of HTS-PCT could be obtained by the suggested modeling method. Then, it is easy to analyze the characteristics of the HTS-PCT by its equivalent circuit. Moreover, the modeling method could also be useful for the design of a specific HTS-PCT. Originality/value The study proposes a modeling method of the HTS-PCT made of the second-generation HTS tapes, i.e. ReBCO-coated conductors.

Study in the Modeling Methods of Multi-Batch Experiment Data and Technology of Error Correction

2010 ◽  
Vol 34-35 ◽  
pp. 1064-1069
Author(s):  
En Ming Miao ◽  
Xin Wang ◽  
Peng Cheng Niu ◽  
Ye Tai Fei
Keyword(s):  
Mathematical Models ◽  
Error Correction ◽  
Eddy Current ◽  
Accuracy Assessment ◽  
Modeling Method ◽  
Batch Experiment ◽  
Current Sensor ◽  
Experiment Data ◽  
Modeling Methods ◽  
System Errors

This paper analyzed accuracy calibrating methods of multi-batch experiment data with system errors which can not be removed and gave the accuracy assessment parameters of mathematical models. Besides, according to the features of experiment data, this paper presented “median of vertical intercept modeling method” which was used on the accuracy assessment of eddy current sensor, comparing with the traditional modeling method, to obtain optimized mathematical models.

Research on Ontology Modeling Method of Smart Grid

2013 ◽  
Vol 291-294 ◽  
pp. 2079-2083
Author(s):  
Hong Peng He ◽  
Yan Hao Huang ◽  
Jun Liu ◽  
Jian Lei Fan
Keyword(s):  
Smart Grid ◽  
Domain Knowledge ◽  
Power Grid ◽  
Modeling Method ◽  
Continuous Development ◽  
Modeling Methods ◽  
Ontology Modeling ◽  
Knowledge Ontology

Smart grid makes new request for the representation and application of power grid knowledge. To solve the problem of “information isolated island” caused by the continuous development of power grid and the ineffectively use of massive domain knowledge, ontology technology is introduced into the smart grid field. Each link of smart grid is analyzed and new request for knowledge it makes is introduced. Then a simple introduction of ontology and ontology modeling is made. Referring to the defects of existing ontology modeling methods and considering the specific reality of smart grid, an ontology modeling method suitable for the smart grid field is presented, which is aiming at providing guidance on ontology modeling of smart grid. Finally a modeling example is given which proves the feasibility and efficiency of the method.

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