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.

Vibration and Noise Reduction Analysis of Snowplow’s GearBox Case Based on Modal Analysis

2016 ◽  
Vol 13 (10) ◽  
pp. 7426-7432
Author(s):  
Xiangyang Jin ◽  
Jun Wang ◽  
. Zhihui ◽  
Zhihui Sun ◽  
Qiyun Yang ◽  
...  
Keyword(s):  
Finite Element ◽  
Noise Reduction ◽  
Modal Analysis ◽  
Vibration Mode ◽  
Element Model ◽  
Element Analysis ◽  
Modeling Technology ◽  
Comparison Results ◽  
Vibration Noise ◽  
Excessive Noise

Study has been conducted on how, where and why does excessive noise generate on the gear-box of the snowplow, and, measures for improvement have been presented. As well, analysis to the generation mechanism of vibration noise of gearbox and gears has been made, to find out the source of the noise. Next, a precise model of the gearbox, built by using 3D modeling technology, was translated into finite element model to make the modal analysis. Through analyzing characteristics of each vibration mode, positions of the gearbox case on which a vibration is most likely to be generated have been determined. To check the accuracy of theoretical calculation, vibration and noise tests were made to the gearbox. Specific measures for improvement were then put forward by combining results from both finite element analysis and experimental analysis. The comparison results showed that: the improved gearbox case had a significant effect on noise reduction, and the goal of reducing vibration and noise was achieved.

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.

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.

Vibration Modal Analysis of DTG under Space Environment

2015 ◽  
Vol 757 ◽  
pp. 39-43
Author(s):  
Jian Feng Guo ◽  
Yi Na Feng ◽  
Yi Tao ◽  
Zhong Bao Qin ◽  
Chang Jiang Liu
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Modal Analysis ◽  
Natural Frequencies ◽  
Element Model ◽  
Space Environment ◽  
Finite Element Software ◽  
Vibration Modal

Finite element model of dynamic tuned gyroscope (DTG) was founded using finite element software of ANSYS. Natural frequencies and vibration modalities of DTG in cases of both being static and rotating were studied respectively through the method of modal analysis, and also various vibration modalities influence on output of gyroscope was analyzed.

Modal Analysis of Crankshaft for Two-Stroke Marine Diesel Engine Based on Block Lanczos Method

2014 ◽  
Vol 998-999 ◽  
pp. 434-437
Author(s):  
Gong Zhi Yu ◽  
Hong Liang Yu ◽  
Da Wei Wang
Keyword(s):  
Diesel Engine ◽  
Modal Analysis ◽  
Natural Frequencies ◽  
Lanczos Method ◽  
Mode Shapes ◽  
Finite Element Models ◽  
Marine Diesel Engine ◽  
Marine Diesel ◽  
Block Lanczos ◽  
Block Lanczos Method

Modal analysis of crankshaft for two-stroke marine diesel engine is carried out on the block lanczos method. The finite element models of crankshaft is created in ANSYS. The crankshaft first 13 natural frequencies and mode shapes are shown as the result and lay the foundation for optimal design of the crankshaft and dynamic response.

Modal Analysis of Automotive Clutch Using Finite Element Method

2014 ◽  
Author(s):  
Yasser Aktir ◽  
Jean-François Brunel ◽  
Philippe Dufrenoy ◽  
Hervé Mahe
Keyword(s):  
Finite Element ◽  
Modal Analysis ◽  
Natural Frequencies ◽  
Element Model ◽  
Mode Shapes ◽  
Natural Vibrations ◽  
Input Shaft ◽  
Vibration Properties ◽  
Clutch System ◽  
Automotive Clutch

Clutch system is an important element in the vehicle powertrain. It transmits the rotation from the crankshaft to the gearbox input shaft and filters axial and torsional vibrations providing from engine or induced by friction. This paper discusses axial dynamic behavior of automotive clutch for manual transmission. For this study, a tridimensional finite element model of clutch system is developed to simulate a clutch shaker test. First, an impact hammer test is performed to identify vibration properties of each clutch component. A pre-stressed modal analysis is then carried out to determine mode shapes and its associated natural frequencies of the clutch assembly. Shaker and simulation results are eventually compared to validate the clutch model. This latter offers for the design phase, a tool to avoid natural vibrations or to vibrate at specified frequencies.

Modal Analysis of Dynamically Tuned Gyroscope Based on ANSYS11.0

2012 ◽  
Vol 152-154 ◽  
pp. 1183-1186
Author(s):  
Zhong Bao Qin ◽  
Guang Bin Liu ◽  
Jian Feng Guo ◽  
Xiao Long Hu
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Modal Analysis ◽  
Natural Frequencies ◽  
Element Model ◽  
Vibration Model

This paper proposed a method to analyses and obtain the vibration identities of DTG(Dynamically Tuned Gyroscope) within the vibration-overloading environment based on ANSYS11.0. Finite element model of DTG was constructed by ANSYS11.0. The Natural Frequencies and vibration modals of DTG in the cases of both being stationary and rotating were studied respectively through the method of modal analysis. The influence of each-rank vibration model of DTG on its output was investigated. The result of this paper provides a stable basis for improving the design of DTG and enhancing the functions of it.

Modal Analysis of Coal Preparation Plant Based on ANSYS

2013 ◽  
Vol 353-356 ◽  
pp. 3541-3544
Author(s):  
Zhi Feng Nie ◽  
Xing Long Li
Keyword(s):  
Finite Element ◽  
Modal Analysis ◽  
Natural Frequencies ◽  
Element Model ◽  
Resonance Phenomenon ◽  
Coal Preparation ◽  
Main Building ◽  
Working Frequency ◽  
Coal Preparation Plant ◽  
Preparation Plant

Finite element model of the main building of Zhaoguan coal preparation plant was established and its modal analysis was carried out based on ANSYS. The front six orders natural frequencies and modal shapes were calculated and the vibration characteristics were carried out. Results of modal analysis showed that the front six orders natural frequencies of the main building are between 1.7252 Hz to 5.1332Hz, which are far less than the working frequency of vibrating screen 15 Hz, so that the resonance phenomenon would not exist in the main building of the coal preparation plant.

The Modal Analysis of the Main Steel Structure of Bucket Wheel Stacker Reclaimer

2013 ◽  
Vol 690-693 ◽  
pp. 3121-3124 ◽  
Author(s):  
Peng Shang ◽  
Yao Zong Hu ◽  
Li Hu He ◽  
Yu Ming Guan
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Modal Analysis ◽  
Vibration Mode ◽  
Steel Structure ◽  
Element Model ◽  
Inherent Frequency ◽  
The Finite Element Model

The vibration mode of main steel structure of bucket wheel stacker reclaimer is complex and changeable, so its modal analysis is necessary. In this paper, the main steel structure of bucket wheel stacker reclaimer was integrally designed and its main parameters were determined. then the finite element model of the main steel structure of the bucket wheel stacker reclaimer was established and the modal analysis was simulated, finally the results of its inherent frequency were calculated by FEA method.

Finite Element Modal Analysis of the Frame of Corn Stubble-Collector

2012 ◽  
Vol 430-432 ◽  
pp. 1072-1075
Author(s):  
Jin Tong ◽  
Bai Gong Zeng ◽  
Dong Hui Chen ◽  
Long Zhe Quan ◽  
Shu Jun Zhang
Keyword(s):  
Finite Element ◽  
Modal Analysis ◽  
Dynamic Characteristics ◽  
Natural Frequencies ◽  
Solid Model ◽  
Vibration Modes ◽  
Core Component ◽  
Design And Optimization ◽  
The Core ◽  
Ansys Workbench

In this paper, one kind of agriculture machines with picking and separating soil was designed to collect corn stubble. The core component of the machine is the frame of corn stubble-collector. The 3-D solid model of the frame of corn stubble-collector was designed using Pro/Engineer software. The first 10 natural frequencies and vibration modes of the frame were obtained by means of the finite element modal analysis in the ANSYS-Workbench software, and analyze the dynamic characteristics of the frame, which can be used to provide some theory basis for design and optimization of the frame.

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