Modal Analysis of Large Marine Crankshaft

2012 ◽  
Vol 271-272 ◽  
pp. 1022-1026 ◽  
Author(s):  
Yang Zhao ◽  
Shou Qi Cao
Keyword(s):  
Finite Element ◽  
Modal Analysis ◽  
Theoretical Basis ◽  
Working Condition ◽  
Natural Frequencies ◽  
Vibration Mode ◽  
Optimized Design ◽  
Ansys Software ◽  
D Model ◽  
Element Theory

Based on the modal analysis of finite element theory, in this paper, a 3-D model is built in CATIA. And simplify the details of the characteristics and constraints depengding on working condition. The Lanczons method of ANSYS software is used in the model analysis in order to obtain natural frequencies and vibration mode vectors of the former 15 orders. And the dangerous areas is located in the crankshaft. These provide a theoretical basis for the optimized design of the crankshadft.

Modal Analysis and Experimental Research of Marine Gearbox

2014 ◽  
Vol 607 ◽  
pp. 405-408 ◽  
Author(s):  
Wen Liu ◽  
Teng Jiao Lin ◽  
Quan Cheng Peng
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Modal Analysis ◽  
Experimental Research ◽  
Natural Frequencies ◽  
Element Model ◽  
Ansys Software ◽  
Tetrahedral Element ◽  
Spring Element ◽  
Good Agreement

The gear-shaft-bearing-housing coupled finite element model of marine gearbox was established by using the truss element, the spring element and the tetrahedral element. The modal of gearbox was analyzed by using the ANSYS software. Then through the experimental modal analysis, the natural frequencies of gearbox are obtained. Compare the experimental results with the numerical results, it shows good agreement.

The Modal Analysis of 16V240 Diesel Engine

2013 ◽  
Vol 645 ◽  
pp. 454-458
Author(s):  
Ming Hai Li ◽  
En Zhe Hong ◽  
Yu Guang Zhang
Keyword(s):  
Finite Element ◽  
Diesel Engine ◽  
Modal Analysis ◽  
Natural Frequencies ◽  
Vibration Mode ◽  
Element Model ◽  
Lanczos Method ◽  
Solid Model ◽  
Weak Points ◽  
Structural Redesign

In order to understand the dynamic characteristics of 16V240 type diesel, established its solid model and finite element model. And conduct the modal analysis of 16V240 diesel with Lanczos method to get the natural frequencies and vibration mode. And then, find the weak points of 16V240 diesel for its structural redesign and improving.

Finite Element Dynamics Analysis of Vibrating Feeder

2012 ◽  
Vol 628 ◽  
pp. 528-531
Author(s):  
Xue Dong Ma ◽  
De Biao Sun ◽  
Zheng Dong Su ◽  
Jie Teng
Keyword(s):  
Finite Element ◽  
Modal Analysis ◽  
Theoretical Basis ◽  
Dynamic Stress ◽  
Dynamic Strength ◽  
Strength Analysis ◽  
Dynamics Analysis ◽  
Ansys Software ◽  
Actual Geometry ◽  
Vibrating Feeder

According to actual geometry size of vibrating feeder, the finite element calculating model for vibrating feeder box is established in this paper. ANSYS software is used to perform modal analysis and dynamic strength analysis for the vibration feeder box, and the former ten modal frequencies of the sieving box and dynamic stress of the sieving box whole is obtained, which provides a theoretical basis for strength design of the vibrating feeder.

Finite Element Modal Analyses of the WK-10B Excavator Stick

2012 ◽  
Vol 619 ◽  
pp. 39-42
Author(s):  
Meng Su ◽  
Chun Ting Liu ◽  
Wan Shan Zhang
Keyword(s):  
Finite Element ◽  
Dynamic Analysis ◽  
Modal Analysis ◽  
Fracture Mechanism ◽  
Theoretical Basis ◽  
Welding Process ◽  
Ansys Software ◽  
Transient Dynamic Analysis ◽  
Stress And Deformation ◽  
Cover Thickness

To analysis the fracture mechanism and breaking location of the stick. By using ANSYS software to establish the model of excavator stick, and focus on analyzing the force changes of excavator stick in largest excavating force. By the modal analysis and transient dynamic analysis, stick stress and deformation distribution are obtained, further poses that reasonable to add the ribs, appropriate to strengthen cover thickness and the welding process of the stick will help prevent cracks. The results provide a reliable theoretical basis to improve the life of stick.

Modal Analysis of Crane Girder Based on ANSYS Workbench

2014 ◽  
Vol 951 ◽  
pp. 58-61
Author(s):  
Ran Peng ◽  
Xiao Yu Qin
Keyword(s):  
Finite Element ◽  
Optimal Design ◽  
Modal Analysis ◽  
Theoretical Basis ◽  
Natural Frequencies ◽  
Frequency Region ◽  
Dynamics Analysis ◽  
Bridge Crane ◽  
Main Girder ◽  
Ansys Workbench

Finite element modal analysis of main girder of bridge crane is conducted, the natural frequencies and the vibration-made vectors of the first 6 orders are obtained, and the vibration hazardous areas are found. It provides a theoretical basis for optimal design and dynamics analysis for girder. The natural frequency and mode shape animation of the modal analysis can be used as the optimal design reference of the girder. Rational optimization of girder is able to avoid the resonance frequency region, which will help to improve the reliability and life-span of the girder.

Modal Analysis and Optimization of Spindle Box of Turn-Milling Center Based on Finite Element Method

2012 ◽  
Vol 226-228 ◽  
pp. 281-284
Author(s):  
Li Da Zhu ◽  
Xiao Bang Wang ◽  
Tiao Biao Yu ◽  
Wan Shan Wang
Keyword(s):  
Finite Element ◽  
Natural Frequencies ◽  
Element Model ◽  
Ansys Software ◽  
Design Requirement ◽  
Design Quality ◽  
Machining Center ◽  
Main Components ◽  
Turn Milling

The dynamic characteristics of machine tool may directly affect its machining capability, which is analyzed to improve the machining precision and efficiency. In this paper, the 3D finite element model of main components turn-milling center is established by using ANSYS software, and then spindle box of turn-milling center is analyzed and optimized; the natural frequencies and vibration models are obtained after analysis, which guarantee the design requirement of the machining center. Therefore it is significant to improve the design quality of machining center by using FEA software in the design process.

scholarly journals Dynamics Characteristics of Blast Furnace Shell

2011 ◽  
Vol 2-3 ◽  
pp. 1018-1020
Author(s):  
De Chen Zhang ◽  
Yan Ping Sun
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Blast Furnace ◽  
Modal Analysis ◽  
Natural Frequencies ◽  
Theoretical Foundation ◽  
Structural Mechanics ◽  
Mode Shapes ◽  
The Future ◽  
Element Method

Finite element method and structural mechanics method are used to study the blast furnace shell modal analysis and the natural frequencies and mode shapes have been calculated. The two methods were compared and validated , and the results provide a theoretical foundation for the anti-vibration capabilities design of blast furnace shell in the future .

Experimental Identification Approach of Dynamic Parameters of Precise Horizontal Machining Centre Based on Component-System

2011 ◽  
Vol 467-469 ◽  
pp. 1686-1690
Author(s):  
Zhi Feng Liu ◽  
Zhong Hua Chu ◽  
Qiang Cheng ◽  
Guang Bo Liu ◽  
Dong Sheng Xuan
Keyword(s):  
Finite Element ◽  
Modal Analysis ◽  
Natural Frequencies ◽  
Modal Testing ◽  
Element Calculation ◽  
Element Simulation ◽  
Modes Of Vibration ◽  
Identification Approach ◽  
Comparison Of The Results ◽  
Machine Structure

This paper integrates experiment modal analysis and the analytical modal analysis to study on the vibration phenomena occurring occasionally at the different components of a precise horizontal machining centre. The paper is focused on extracting the mode shape of the major components of the machine in order to ensure resonance phenomena as a cause of vibration. At first the main natural frequencies with the corresponding modes of vibration of the machine structure are obtained by the experiment modal analysis. Then the dynamic behavior of the machine components is simulated using a finite element simulation model. The comparison of the results based on finite element calculation with their experimental counterparts shows the reasonableness. The model is evaluated and corrected with experimental results by modal testing of the machine components.

Finite Element Analysis for the Crankshaft of the Piston Compressor

2010 ◽  
Vol 102-104 ◽  
pp. 17-21
Author(s):  
Bin Zhao
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Natural Frequencies ◽  
Piston Compressor ◽  
Element Model ◽  
Ansys Software ◽  
Element Analysis ◽  
Rotating Speed ◽  
Dynamical Characteristics ◽  
The Finite Element Model

In order to study the static and dynamical characteristics of the crankshaft, ANSYS software was used to carry out the corresponding calculations. The entity model of the crankshaft was established by UG software firstly, and then was imported into ANSYS software for meshing, and then the finite element model of the crankshaft was constructed. The crankshaft satisfied the requirement of stiffness and strength through static analysis. The top six natural frequencies and corresponding shapes were acquired through modal analysis, and the every order critical rotating speed of the crankshaft was calculated. The fatigue life of the crank was calculated by fatigue module of ANSYS software finally. These results offered the theoretical guidance for designing, manufacturing and repairing the crankshaft.

Modal Analysis on Bus Body Frame Based on I-DEAS Software

2012 ◽  
Vol 182-183 ◽  
pp. 865-868
Author(s):  
Yuan Hua Chen
Keyword(s):  
Modal Analysis ◽  
Theoretical Basis ◽  
Natural Frequencies ◽  
Body Frame ◽  
Bus Body

The author sets up the FEA modal of a bus body using the I-DEAS software and applies load.After solution,the athor gets the frame’s former ten natural frequencies and their corresponding vibration shapes.This can supply the important theoretical basis in analysis and calculation and in improving the design of the bus body.

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