For Libraries For Publication Open Access Downloads About Us Contact Us
Paper Titles
Preface and Organizing Committee
Analysis for Wedge Falling-Proof Brake Assembly of Lifter with Converter Oxygen Lance
p.3
An Improved Model Reduction Method and its Application in Similar Simulation of Complex Systems
p.8
Simulation and Experiment Research of Working Process of Exhaust Turbocharged and Intercooled Diesel Engine
p.13
The Effects of the Manufacturing Errors of a Group of Sprags on the Engagement Properties of Sprag Clutch
p.18
Optimization Design and Simulation Research of Hydraulic Test Bench
p.23
Electro-Mechanical Coupled Characteristics of Piezostack Actuator under the Combined Loads
p.27
Research on Performance of Stern Shaft Mechanical Seal Based on FLUENT
p.31
Analysis and Research of the Combustion Process of YN4100QB Diesel Engine
p.35

An Improved Model Reduction Method and its Application in Similar Simulation of Complex Systems

Article Preview

Abstract:

The model reduction methods aim at simplifying system model while retaining system dynamic behaviors. In this study, an improved high-order system model reduction method based on modal aggregation is proposed, and which is applied to a typical complex mechanical system. Compared with general model reduction methods based on aggregation method, this method derived from the modal matrix can get more accurate aggregation matrix. The research on natural characteristic of gas turbine blade-disk shows that the reduced-order model obtained by modal aggregation method retains the dynamics of original complex system, which verified feasibility and effectiveness of the modal aggregation reduction method and also provided an easy method for similar simulation modeling and dynamic characteristic analysis of high-order complex systems.

You might also be interested in these eBooks
Advances in Material Science, Mechanical Engineering and Manufacturing View Preview

Info:

Periodical:

Advanced Materials Research (Volume 744)

Pages:

8-12

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.744.8

Citation:

Cite this paper

Online since:

August 2013

Authors:

Ai Lun Wang, Qian Jin Wang

Keywords:

High-Order Complex Systems, Modal Aggregation, Model Reduction Method, Simulation Modeling

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

© 2013 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

References

[1] ZHENG Shufei, DING Hun: submitted to Mechanics in Engineering (2008).

Google Scholar

[2] Qu Z Q, Jung Y, Selvam R P: submitted to Mechanical Systems and Signal Processing (2003).

Google Scholar

[3] K. Willcox, J. Peraire: submitted to AIAA Journal (2002).

Google Scholar

[4] WAN Baiwu, WU Shouzhang: submitted to Acta Automatica Sinica (1981).

Google Scholar

[5] Orbak AY, Turkay OS, Eskinat E: submitted to Proceedings of the Institution of Mechanical Engineers (2003).

Google Scholar

[6] YU Tao: submitted to Chinese Journal of Construction Machinery (2007).

Google Scholar

[7] Jamshidi: submitted to Large-scale systems modeling and control (1983).

Google Scholar

[8] ZHU Yaolin, YANG Zhihai: submitted to Microcomputer Information (2011).

Google Scholar

[9] ZHANG Guoliang, KE Xuzheng: submitted to Journal of Projectiles, Rockets, Missiles and Guidance (2005).

Google Scholar

[10] M. Aoki: submitted to Journal of IEEE Trans. AC-13 (1968).

Google Scholar

[11] Wang Jianjun, Yao Jianyao: submitted to Journal of Aerospace Power (2008).

Google Scholar

© 2025 Trans Tech Publications Ltd. All rights are reserved, including those for text and data mining, AI training, and similar technologies. For open access content, terms of the Creative Commons licensing CC-BY are applied.
Scientific.Net is a registered trademark of Trans Tech Publications Ltd.