scholarly journals Structural Two-Parameter Exponential Damage Model Performance Analysis under Earthquake Excitation

2012 ◽  
Vol 5 ◽  
pp. 275-279 ◽  
Author(s):  
Wang Xianjiea ◽  
Zhang Xun’an ◽  
Toi Limazie ◽  
Lian Yeda,a
Keyword(s):  
Performance Analysis ◽  
Damage Model ◽  
Model Performance ◽  
Earthquake Excitation ◽  
Two Parameter

scholarly journals Performance Analysis of Brushless DC Motor Using Modified Queen Bee Evolution Based Genetic Algorithm Tuned PI Controller under Different Speed Conditions

2020 ◽  
pp. 1-10
Author(s):  
Ankit Rawat ◽  
Mohd Fazle Azeem
Keyword(s):  
Performance Analysis ◽  
High Efficiency ◽  
Mechanical Load ◽  
Model Performance ◽  
Bldc Motor ◽  
Brushless Dc ◽  
Compact Size ◽  
And Performance ◽  
Domestic Appliance ◽  
Motor Drive System

The modeling of BLDC motor and performance analysis under diverse operating speed settings has been presented in this paper. BLDC motors gaining more & more attention from different Industrial and domestic appliance manufacturers due to its compact size, high efficiency and robust structure. Voluminous research and developments in the domains of material science and power electronics led to substantial increase in applications of BLDC motor to electric drives. This paper deals with the modeling of BLDC motor drive system along with a comparative study of modified queens bee evolution based GA tuned & manually tuned control schemes using MATLAB /SIMULINK. In order to evaluate the performance of proposed drive, simulation is carried out at different Mechanical load & speed conditions. Test outcomes thus achieved show that the model performance is satisfactory.

Analysis of Storey Damage Effect Factors of SRC Frame-RC Core Tube Hybrid Structure under Cyclic Loading

2012 ◽  
Vol 166-169 ◽  
pp. 52-55 ◽  
Author(s):  
Shan Suo Zheng ◽  
Wei Yang ◽  
Qing Lin Tao ◽  
Yi Hu
Keyword(s):  
Cyclic Loading ◽  
Damage Model ◽  
Hybrid Structure ◽  
Damage Effect ◽  
Design Parameters ◽  
Fe Model ◽  
Effect Factors ◽  
Earthquake Excitation ◽  
Core Tube ◽  
Finite Element Software

Based on the general finite-element software ABAQUS, the FE model of 30-story SRC frame-RC core tube hybrid structure is built up. The maximum story drift angle of the structure under cyclic loading can effectively characterize the changes in storey damage. With the new achievements on damage effect factors, the relation between storey damage and component damage of various types and influence of the main design parameters on the storey damage law are analyzed. It is found that storey damage degree is more serious with the increase of stiffness character value and shear wall depth-thickness ratio, but the effects of both of them are gradually weakened and the change range of it is really small. Research will provide theoretical support on the building of hybrid structure damage model under earthquake excitation.

Numerical calculation model performance analysis for aluminum alloy mortise-and-tenon structural joints used in electric vehicles

2019 ◽  
Vol 161 ◽  
pp. 77-86 ◽  
Author(s):  
Huiyuan Xiong ◽  
Zhirong Tan ◽  
Ronghui Zhang ◽  
Zhijian Zong ◽  
Zhipeng Luo
Keyword(s):  
Aluminum Alloy ◽  
Numerical Calculation ◽  
Performance Analysis ◽  
Electric Vehicles ◽  
Model Performance ◽  
Calculation Model ◽  
Structural Joints ◽  
Mortise And Tenon

A Power Law Fatigue Damage Model for Fibre-Reinforced Plastic Laminates

1986 ◽  
Vol 200 (3) ◽  
pp. 155-166 ◽  
Author(s):  
T Adam ◽  
R F Dickson ◽  
C J Jones ◽  
H Reiter ◽  
B Harris
Keyword(s):  
Fatigue Damage ◽  
Power Law ◽  
Damage Model ◽  
Comparative Investigation ◽  
Reinforced Plastic ◽  
Tensile Fatigue ◽  
Major Mode ◽  
Parametric Relationship ◽  
Number Of Cycles ◽  
Two Parameter

Following an earlier comparative investigation of the tensile fatigue response, in terms of stress versus log life curves, of three epoxy-resin-based laminates of 0/90 lay-up and reinforced with carbon, glass and Kevlar-49 fibres, the authors now present a study of the accumulation of fatigue damage in terms of the residual strengths of the fatigued laminates. A stress-independent parametric relationship between normalized stress and normalized number of cycles is found to describe the behaviour of all three composites, suggesting a single major mode of fatigue damage despite the widely different mechanical characteristics of the different materials. The model is a two-parameter power law model, derived from a consideration of the appropriateness of various curve-fitting methods, and permits the incorporation of all modes of damage accumulation, from gentle ‘wear-out’ to ‘sudden death’ simply by the adjustment of this pair of power law exponents.

scholarly journals Query Expansion for Arabic Information Retrieval Model: Performance Analysis and Modification

2018 ◽  
Vol 5 (1) ◽  
pp. 11-24
Author(s):  
Ayat Elnahaas ◽  
Nawal Elfishawy ◽  
Mohamed Elsayed ◽  
Gamal Atteya ◽  
Maha Tolba
Keyword(s):  
Information Retrieval ◽  
Performance Analysis ◽  
Query Expansion ◽  
Model Performance ◽  
Retrieval Model ◽  
Arabic Information Retrieval
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