Modal Analysis of Prestressed Spindle Component Based on Workbench

2011 ◽  
Vol 308-310 ◽  
pp. 2358-2363
Author(s):  
Hong Wei Li ◽  
Jian Bin Zhang
Keyword(s):  
Modal Analysis ◽  
Natural Frequencies ◽  
Structural Parameters ◽  
Large Influence ◽  
Design Structure ◽  
Inherent Frequency ◽  
Component Assembly ◽  
Ansys Workbench

The natural frequencies and deformation of the prestressed spindle component assembly are separately analyzed by means of ANSYS workbench software in this paper. The results show that the structural parameters have large influence on spindle inherent frequency, it is important to optimize the design structure to make the inherent frequency of the spindle away from work frequency.

INVESTIGATION OF NATURAL FREQUENCIES OF COMPLEX WATER PIPELINES

Akustika ◽  
2021 ◽  
pp. 2-7
Author(s):  
Antonina Sekacheva ◽  
Alexander Noskov ◽  
Lilia Pastukhova
Keyword(s):  
Modal Analysis ◽  
Natural Frequencies ◽  
Residential Buildings ◽  
Geometrical Parameters ◽  
Analysis Method ◽  
Noise And Vibration ◽  
Software Packages ◽  
Resonant Modes ◽  
Water Pipelines ◽  
Ansys Workbench

The article deals with the problem of emergence of noise and vibration from pipelines of multi-storey residential buildings. The determination method of risk of increased noise and vibration using the modal analysis method in the ANSYS Workbench software packages is offered. The numerical modal analysis of straight pipeline sections with various geometrical parameters is carried out. Risk predictions of possible resonant modes are made. The maximum allowed span lengths between supports for sections of pipeline systems with a diameter of 15, 20, 25, 32, 40, 48, 60, 70, 102, 114, 140, 168, 180, 219 mm are offered.

Modal Analysis of the Bed Structure of Large Diameter Fresnel Lens Mold Machine Tool

2014 ◽  
Vol 912-914 ◽  
pp. 707-710
Author(s):  
Jia Liang Guan ◽  
Xiao Hui Zhang ◽  
Cheng Guo Cao ◽  
Xin Qiang Ma ◽  
Ling Chen
Keyword(s):  
Machine Tool ◽  
Modal Analysis ◽  
Theoretical Basis ◽  
Natural Frequencies ◽  
Large Diameter ◽  
Fresnel Lens ◽  
Structure Characteristics ◽  
Solid Works ◽  
3D Software ◽  
Ansys Workbench

Modeling of the large diameter Fresnel lens mold machine tool bed using 3D software solid works, and then import the ANSYS Workbench, natural frequencies and modal shapes are obtained by the study of the modal analysis and analysis of the structure characteristics of the machine bed, for the next step on the bed structure optimized to provide a reliable theoretical basis. Keywords: the bed; ANSYS Workbench; modal analysis; natural frequencies

Analysis on Dynamic Characteristics of HTC100 NC Lathe Bed

2011 ◽  
Vol 328-330 ◽  
pp. 700-703
Author(s):  
Mo Wu Lu ◽  
Guo Ming Zhang ◽  
Wei Qiang Zhao
Keyword(s):  
Modal Analysis ◽  
Performance Indicators ◽  
Natural Frequencies ◽  
Dynamic Performance ◽  
Analysis Method ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
3D Solid ◽  
Modal Vibration ◽  
Ansys Workbench

The processing performance is closely related with dynamic performance and the dynamic performance is one of the most important performance indicators which is affecting the performance and product quality. The machine is affected most by the dynamic performance of machine bed. The modal analysis method is used to analyze the dynamic performance of the machine. In this paper, the modal analysis of lathe bed is conducted. A 3D solid model of HTC100 NC lathe bed is built with SolidWorks. In order to facilitate the finite element analysis, the model of lathe bed is simplified. The modal analysis of lathe bed is calculated with ANSYS Workbench 12. The first six natural frequencies and corresponding modes are obtained through modal analysis of the lathe bed. According to the low-order natural frequency and modal vibration shapes, the rigidity vulnerable area of lathe bed is realized, which provides the reliable theory to improve lathe bed structure.

Modal Analysis for the Fuselage of the New Tube Automatically Benchmarked Equipment Based on ANSYS Workbench

2014 ◽  
Vol 623 ◽  
pp. 41-47
Author(s):  
Fu Yang Chen ◽  
Yan Wu ◽  
Yu An He
Keyword(s):  
Modal Analysis ◽  
Natural Frequencies ◽  
Solid Model ◽  
Seamless Connectivity ◽  
3D Solid ◽  
Ansys Workbench

The 3D solid model of the tube automatically benchmarked equipment is built by UG software. With seamless connectivity UG and ANSYS Workbench software, modal analysis of the fuselage of the automatically benchmarked equipment built by ANSYS Workbench software. Then natural frequencies and modal of the lower six orders are obtained, and the vibration weakness of the structure has also been found out. To improve the structure provides a reliable reference

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.

Modal Analysis of a Container Filled with Water

2014 ◽  
Vol 592-594 ◽  
pp. 2122-2126
Author(s):  
M.L. Chandravanshi ◽  
Alok Kumar Mukhopadhyay
Keyword(s):  
Modal Analysis ◽  
Natural Frequencies ◽  
Fem Analysis ◽  
Structural Vibration ◽  
Mode Shapes ◽  
Design Stage ◽  
Modal Parameters ◽  
Element Analysis ◽  
Empty Container ◽  
Ansys Workbench

Modal analysis plays an important role at design stage which helps in diagnosing problems related to structural vibration. This paper delineates about the experimental work to investigate the modal parameters, such as mode shapes and natural frequencies of a metallic container. The modal parameters have been experimentally determined for the empty container, the container filled with one liter of water and the container filled with two liters of water. Theoretical analysis is also carried out through finite element analysis using ANSYS workbench 14 for finding out modal parameters of the empty container only. The boundary conditions of the container in the experimental and FEM analysis have been kept same. The values of modal parameters obtained by the two methods then compared for their proximity

Pre-Stressed Modal Analysis of the Shaft Based on ANSYS Workbench

2014 ◽  
Vol 1028 ◽  
pp. 105-110
Author(s):  
Xin Wang Song ◽  
Yan Wu ◽  
Yu An He ◽  
Fu Yang Chen
Keyword(s):  
Modal Analysis ◽  
Natural Frequencies ◽  
Three Dimensional ◽  
Drive Shaft ◽  
Stepper Motor ◽  
Vibration Modes ◽  
Three Dimensional Model ◽  
Speed Range ◽  
Stepper Motors ◽  
Ansys Workbench

This paper is based on the research on the drive shaft of the toothpaste tube conveyor, using Solidworks to create the three dimensional model of the frame of the soft tube conveyor and the drive shaft. And natural frequencies and vibration modes of preceding 6 modalities of pre-stress modal analysis are calculated with ANSYS Workbench. By analyzing the natural frequencies of the drive shaft and the resonance range of stepper motors, the reasonable speed range of the stepper motor can be acquired, in order to avoid the resonance between the drive shaft and stepper motor. At the same time, the reasonable installation location of synchronous belt wheels can be attained by analyzing each vibration mode.

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.

Experimental and numerical investigation on dynamic parameters of broaching machine

2015 ◽  
Vol 231 (10) ◽  
pp. 1907-1920
Author(s):  
Shenshun Ying ◽  
Shiming Ji ◽  
Yangyu Wang ◽  
Zhixin Li ◽  
Lvgao Lin ◽  
...  
Keyword(s):  
Modal Analysis ◽  
Natural Frequencies ◽  
Dynamic Properties ◽  
Structural Parameters ◽  
Damping Ratio ◽  
Experimental Results ◽  
Mode Shapes ◽  
Fe Model ◽  
Dynamic Parameters ◽  
Machine Structure

Dynamic properties of the whole broaching machine structure greatly contribute to the broaching quality and efficiency. However, it is hard to measure the dynamic parameters because they will change during operation compared with the static results from classic experimental modal analysis. This study is to examine the dynamic parameters of broaching machine LG7120KT using both the numerical finite element (FE) method and the experimental operational modal analysis (OMA). Firstly, FE analysis model of the broaching machine with the real dimension is constructed and calculated. Second, experimental results are obtained from OMA in practical broaching process, which can be used to identify steady-state modes. Modal parameters including mode shapes, damping ratio, and natural frequencies are examined, using both LMS SCADAS III-305 system and PolyMAX method in OMA. The numerical and experimental results show high agreement in their calculated natural frequencies. From the modal analysis results, it is also found the vibration normal to cutting direction can be greatly reduced by adjusting broaching speed. From the topology optimization result based on the already correlated FE model, we redesigned a lightweight machine structure with a better dynamic performance, due to its lower displacement of broaching machine at force point and its higher first-order natural frequency. The experimental and numerical results in this paper help to design the structural parameters of broaching machine and propose a better broaching process.

scholarly journals Modal Analysis of a Thick-Disk Rotor with Interference Fit Using Finite Element Method

2018 ◽  
Vol 2018 ◽  
pp. 1-9
Author(s):  
Yuhua Fan ◽  
Hongchang Ding ◽  
Maoyuan Li ◽  
Jiacheng Li
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Modal Analysis ◽  
Natural Frequency ◽  
Natural Frequencies ◽  
Bending Stiffness ◽  
Thick Disk ◽  
Interference Fit ◽  
Motion Equations ◽  
Ansys Workbench

This paper is concerned with the modal analysis of a thick-disk rotor, which consists of an elastic shaft with a rigid thick disk assembled by interference fit, and the width of the thick disk is not negligible. Firstly, the friction moment on the contact surface of disk and shaft is deduced in terms of elastic theory, and a new enhanced coefficient of bending stiffness of assembly body is proposed and calculated for the first time. Secondly, the effect of the width of thick disk on diametrical moment of inertia, as well as the enhanced coefficient of bending stiffness of interference-fit part between disk and shaft, is included in the motion equations of thick-disk rotor, which are established based on finite element method, and the natural frequencies of rotor are obtained by solving the motion equations. Then the modal analysis is performed to get the natural frequencies in ANSYS Workbench, in which the friction coefficient and interference fit are set to be the same as those of the finite element calculation method. At last the modal experiment is done to verify the accuracy of calculation and simulation. The results show that the calculation values using enhanced stiffness of assembly part are in good agreement with those of ANSYS Workbench and experiment, and the percent errors of the first natural frequency and the second natural frequency are down to about 0.32% and 0.83%, respectively.

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