scholarly journals Dynamic Behavior and Serviceability Analysis of a New Type of U-Shaped Steel-Concrete Composite Floor Slab

2020 ◽  
Vol 2020 ◽  
pp. 1-12
Author(s):  
Yaqin Lu ◽  
Hongkun Shang ◽  
Zhengnong Li ◽  
Kejian Ma ◽  
Lan Jiang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Natural Frequency ◽  
Experimental Test ◽  
Experimental Tests ◽  
Modal Assurance Criterion ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
Calculation Results ◽  
New Type

A new type of U-shaped steel-concrete composite floor is analyzed in detail. The experimental test and finite element analysis of the floor are conducted to study the natural frequency and serviceability characteristics of the new composite floor structure. The natural frequency of the floor is measured under the environmental random vibration stimulating method, and the peak acceleration of the floor is measured under pedestrian-induced load. The experimental test results show that the U-shaped steel-concrete composite floor has better antiseismic behaviors and meet the specified serviceability requirements. The finite element analysis results indicate the constraints have a great impact on the calculation results. The experimental tests and FEM results of the floor are compared based on the modal assurance criterion, and the results are in good agreement. The experimental test acceleration curves demonstrate that the peak values meet the requirements of Chinese specification.

A Ultra -Super Efficiency Induction Motor Based on the Finite Element Analysis

2015 ◽  
Vol 734 ◽  
pp. 816-821
Author(s):  
Chang Qi Liu ◽  
Yu Fa Xu ◽  
Quan Feng Li ◽  
Jin Hua Bian
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Experimental Tests ◽  
Element Analysis ◽  
Loss Analysis ◽  
Motor Efficiency ◽  
The Finite Element Analysis ◽  
New Type ◽  
Material Conditions ◽  
The Cost

In order to increase the cost and material conditions as little as possible for improving the efficiency of the motor, and reduce the losses of the motor. This paper have YE3-132S-6X3 super-efficient motor loss analysis first. According to the characteristics of its loss analysis, this paper change the motor slot coordination, and through the finite element analysis, further has carried on the design of slot type and winding. Finally, in order to further reduce iron loss, this paper uses the new type of silicon steel, and then by comparing with the finite element analysis and experimental tests found YE3-132S-6X3 motor efficiency have achieved the purpose of the ultra-super efficient, and other performance parameters can also meet the requirements.

The Finite Element Analysis and Optimization of Subway Steel Structure Work Platform Based on Workbench and Pro/E in a Subway

2012 ◽  
Vol 538-541 ◽  
pp. 2953-2956
Author(s):  
Ya Li ◽  
Guang Sheng Ren
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Structural Characteristics ◽  
Steel Structure ◽  
Strength Analysis ◽  
Element Analysis ◽  
Maximum Deformation ◽  
Software Model ◽  
The Finite Element Analysis ◽  
Calculation Results

The static and stability analysis of steel structure were taken according to steel structure work platform’s requirements and structural characteristics in a subway parking space by using the software model which is established by Pro/E software and implanted into the finite element analysis software ANSYS Workbench. The maximum deformation and stress in design load of the steel structure were calculated and the linear stress strength analysis of the key parts was carried out, also both the analysis and testing of the supporting pillar’s stability were performed. The results show that the structure model established by Pro/E and the calculation method are reasonable. Moreover, the calculation results are of high accuracy. The profile size is properly chosen and the structure bearing capacity and deformation meet the design requirements.

A Correlation Improvement Technique for Model Updating of Structures

2016 ◽  
Vol 16 (08) ◽  
pp. 1550049 ◽  
Author(s):  
Fatih Altunel ◽  
Mehmet Çelik ◽  
Mehmet Çalişkan
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Model Updating ◽  
Element Model ◽  
Modal Assurance Criterion ◽  
Element Analysis ◽  
New Correlation ◽  
The Finite Element Analysis ◽  
Node Removal ◽  
The Finite Element Model

This study proposes a new correlation improvement technique for the optimum node removal location to get improved modal assurance criterion (MAC) matrix. The technique is applied to updating of the finite element model (FEM) of a structure. The developed routine is tried on a utility helicopter. It is proven that it is capable of showing better performance than the coordinate MAC (coMAC), commonly used in such analyses. Commercial software is utilized for the finite element analysis of the helicopter fuselage and tail. Experimental modal analyses are also performed for updating the model for tail of the helicopter to demonstrate the effectiveness of the new technique.

scholarly journals Finite element analysis of floor slab of new type assembly structure system

2021 ◽  
Vol 272 ◽  
pp. 02017
Author(s):  
Xiaomeng Zhang ◽  
Weilun Ding ◽  
Qingying Ren ◽  
Wenting Liu ◽  
Qiaji Wang
Keyword(s):  
Mechanical Properties ◽  
Finite Element Analysis ◽  
Finite Element ◽  
Concrete Structure ◽  
Hysteresis Curve ◽  
Element Analysis ◽  
Structure System ◽  
The Finite Element Analysis ◽  
Assembly Structure ◽  
New Type

In this paper, a new type of prefabricated concrete structure system is put forward, and a new type of bi-directional multi-ribbed floor is put forward in combination with this system.Finite element analysis is carried out on the floor, and its mechanical properties are analyzed, and compared with the test hysteresis curve, the rationality and correctness of the finite element analysis are obtained.

Research on Analysis Method of Fatigue Strength for New Type Crushing Ripper Based on the Composite Load Spectrum

2014 ◽  
Vol 487 ◽  
pp. 378-384
Author(s):  
Feng Yi Lu ◽  
Xin Xin Liu ◽  
Ge Ning Xu
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Fatigue Strength ◽  
Strength Analysis ◽  
Analysis Method ◽  
Load Spectrum ◽  
Element Analysis ◽  
Structural Fatigue ◽  
The Finite Element Analysis ◽  
New Type

In view of the problem that new type crushing ripper installation of tamping equipment in circulation under the action of different load working multiple cases may occur structural fatigue damage, analysis of its force characteristic, establishment ripper rack compression bending component model, according to the working condition of the most unfavorable load combinations, using the allowable stress method to calculate structural fatigue strength; the combined effect of road load spectrum and vibrating load is also taken into consideration, then statics analysis and fatigue analysis of new type crushing ripper are calculated with the finite element analysis software Ansys Workbench. The results show that theoretical calculations are in accordance with the finite element analysis results, it evidences that the fatigue strength analysis method of crushing ripper is feasible and correct. It provides a reference for the anti-fatigue optimization design of new type crushing ripper, to guarantee its meet the operational requirements under of bad conditions.

The Finite Element Analysis of the Wind Turbines's Rotary Support

2011 ◽  
Vol 347-353 ◽  
pp. 1276-1280
Author(s):  
Hong Liang Hu ◽  
Rui Jie Wang ◽  
Chun Ling Meng ◽  
Guo Feng Li
Keyword(s):  
Finite Element Method ◽  
Finite Element Analysis ◽  
Finite Element ◽  
Modal Analysis ◽  
Natural Frequency ◽  
Static Analysis ◽  
Theoretical Basis ◽  
Dynamic Performance ◽  
Element Analysis ◽  
The Finite Element Analysis

Abstract. Combining characteristic of the Wind Tturbines's rotary support, using finite element method, the paper probe the rotary support finite element analysis of static and modal analysis. Through the static analysis of the rotary support, receiving the deformation and stress-strain results; through modal analysis,receiving the 6-order natural frequency and vibration shape.Analyzing of the main failure forms and Dynamic performance ,the results provide a theoretical basis of improvement of the design and to finalize the program.

scholarly journals Study on Mechanical Properties of Concrete Filled Square Steel Tubular Column Joints

2016 ◽  
Vol 10 (1) ◽  
pp. 668-676
Author(s):  
Wei Shi ◽  
Xiao Sanxia ◽  
Jiang Guoping
Keyword(s):  
Mechanical Properties ◽  
Finite Element Analysis ◽  
Finite Element ◽  
Steel Plate ◽  
Protective Layer ◽  
Frame Structure ◽  
Hysteresis Curve ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
New Type

A new type of connection node filled with steel tubular column is proposed for the frame structure of concrete. In this paper, the mechanical properties and failure mechanism are studied. As shown by the finite element analysis results, the hysteresis curve attains the full standard, indicating that the joints possess good deformation performance, as well as good bearing capacity, ductility and energy dissipation capacity. Based on the results of the finite element analysis, the experimental study of this type of node is carried out. Meanwhile, a series of experiments are conducted to enhance the length of the steel plate, the effectiveness of the steel plate and the thickness of the protective layer of the steel plate.

scholarly journals Analysis on mechanical characteristics of brake wheel and brake shoe of elevator traction machine

2021 ◽  
Vol 2125 (1) ◽  
pp. 012046
Author(s):  
Tao Jiang ◽  
Ziwei Wang ◽  
Zhaolin Ren ◽  
Guangjun Liu ◽  
Facai Ren
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Mechanical Characteristics ◽  
Element Analysis ◽  
Brake Shoe ◽  
Emergency Braking ◽  
The Finite Element Analysis ◽  
Calculation Results ◽  
The Moment ◽  
The Impact

Abstract This paper analyzes the change of brake torque during normal stop and emergency braking of elevator. Taking the permanent magnet synchronous elevator traction machine as an example, the mechanical characteristics of the brake wheel and brake shoe on the brake under emergency braking are analyzed. According to the finite element analysis and calculation results, the impact and stress of the elevator are the largest at the moment of emergency braking, reaching 270.3MPa, and the strain increases gradually. The analysis results can provide reference for the design and verification of brake wheel and brake shoe of elevator traction machine.

The Finite Element Analysis of Derrick of Coal-Bed Methane Rigs

2012 ◽  
Vol 215-216 ◽  
pp. 758-761
Author(s):  
Liu Zhi ◽  
Di Wu ◽  
Bao Shan Sun
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Natural Frequencies ◽  
Coal Bed ◽  
Analysis Software ◽  
Element Analysis ◽  
Drilling Rig ◽  
Vibration Model ◽  
The Finite Element Analysis ◽  
Calculation Results

Using the finite element analysis software ANSYS established derrick model of CBM drilling rig car and calculated its static strength and model analysis. The maximum Mises stress and the weakest position of derrick was determined and given its four bands of natural frequencies and corresponding vibration model. The conclusion can be gotten from calculation results that the structure of derrick meet the requirements of design.

Dynamic Analysis of Micro-Milling Machine

2013 ◽  
Vol 465-466 ◽  
pp. 699-703 ◽  
Author(s):  
S. Hassan ◽  
Erween Abdul Rahim ◽  
Zazuli Mohid ◽  
N.M. Warap
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Dynamic Analysis ◽  
Natural Frequency ◽  
Micro Milling ◽  
Milling Machine ◽  
Ansys Software ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
Machine Structure

Dynamic analysis is very important in developing machine structure to sustain the required accuracy, reliability and productivity. The objective of this study is to conduct a dynamic and modal analyses of micro-milling machine. The machine designs were predicted by comparing the Finite Element Analysis (FEA) using ANSYS software and experimental hammer testing. Two micro-milling machine designs have been proposed. Natural frequency and mode shape was analyzed in modal analysis which show the result that first mode recorded frequency of 92.086 Hz for design A and 154.78 Hz for design B. Natural frequency of design B was higher than design A. From the comparision, it can be concluded that Design B was selected as a best design.

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