Harmonic response analysis of coupled plate structures using the dynamic stiffness method

2018 ◽  
Vol 127 ◽  
pp. 402-415 ◽  
Author(s):  
Chunyu Zhang ◽  
Guoyong Jin ◽  
Tiangui Ye ◽  
Yantao Zhang
Keyword(s):  
Dynamic Stiffness ◽  
Response Analysis ◽  
Plate Structures ◽  
Harmonic Response ◽  
Stiffness Method ◽  
Dynamic Stiffness Method ◽  
Harmonic Response Analysis

Modal and Harmonic Response Analysis: Linear-Approach Simulation to Predict the Influence of Granular Stiffeners on Dynamic Stiffness of Box-Shaped Workpiece for Increasing Stability Limit against Chatter

2014 ◽  
Vol 493 ◽  
pp. 501-506 ◽  
Author(s):  
Oegik Soegihardjo ◽  
Suhardjono ◽  
Bambang Pramujati ◽  
Agus Sigit Pramono
Keyword(s):  
Dynamic Stiffness ◽  
Stability Limit ◽  
Machining Process ◽  
Response Analysis ◽  
Work Piece ◽  
Harmonic Response ◽  
Linear Approach ◽  
Excited Vibration ◽  
Harmonic Response Analysis ◽  
Sand And Gravel

Chatter is a self-excited vibration that occurs during machining process. It becomes a limitation to productivity and reduces the surface quality of work piece. Increasing dynamic stiffness of the work piece will improve its stability limit against chatter occurrence.Initial linear-approach simulation performing finite element modal and harmonic response analysis of the work piece filled with granular stiffener (sand and gravel) is presented. Drucker-Prager granular frictional material model is chosen to represent sand and gravel used as stiffener. Drucker-Prager parameters are chosen based on the experiment setting condition.Effect of an addition of the granular stiffener on the dynamic stiffness of the work piece will be evaluated. The simulation results are verified by experiment results.

Power flow analysis of built-up plate structures using the dynamic stiffness method

2017 ◽  
Vol 24 (13) ◽  
pp. 2815-2831 ◽  
Author(s):  
Wenwei Wu ◽  
Xuewen Yin ◽  
Hui Li ◽  
Kuikui Zhong
Keyword(s):  
Power Flow ◽  
Dynamic Stiffness ◽  
Flow Analysis ◽  
Plate Structures ◽  
Vibration Transmission ◽  
Plate Structure ◽  
Power Flow Analysis ◽  
Stiffness Method ◽  
Dynamic Stiffness Method ◽  
Out Of Plane

The dynamic stiffness method (DSM) in our recent paper, which can consider both in-plane and out-of-plane vibrations simultaneously, is formulated to investigate the power flow characteristics of built-up plate structures. Prior to power flow analysis, comprehensive validation works on our DSM are performed so as to better exhibit its numerical capabilities. Power input and power transmission within a two-plate structure are then analyzed by following the context of in-plane and out-of-plane vibrations. In addition, three vibration transmission paths within a multiple plate structure are characterized in terms of power flow densities, which can provide better physical insights in vibration transmission within complex plate structures. Compared to power flow analysis based on the well-known reception/mobility method, our approach is strongly recommended for the dynamics of built-up structures since it can assemble the overall stiffness matrix in a straightforward manner like that in the conventional finite element technique.

Dynamic Analysis of DVG 850 High-Speed Machining Center

2012 ◽  
Vol 487 ◽  
pp. 203-207
Author(s):  
Gong Xue Zhang ◽  
Xiao Kai Shen
Keyword(s):  
High Speed ◽  
Simulation Analysis ◽  
Response Analysis ◽  
Improved Method ◽  
Analysis Software ◽  
Element Analysis ◽  
Harmonic Response ◽  
Machining Center ◽  
Calculation Results ◽  
Harmonic Response Analysis

Purpose, with the application of workbench finite element analysis software, get the analysis results of DVG 850 high-speed vertical machining center via the modal analysis and harmonic response analysis. Use the calculation results for reference, put forward the improved method, and prove the credibility of the simulation analysis by testing DVG 850 prototype.

Sign in / Sign up

Export Citation Format

Share Document