Pseudo-Dynamic Testing Method Based on External Displacement Control

Da Peng Wang; Shi Zhu Tian

doi:10.4028/www.scientific.net/AMM.204-208.2428

Paper Titles

Long-Period Displacement Spectra of Near-Fault Strong-Motion from Tremendous Earthquakes
p.2405

Buildings Setbacks Research From Surface-Fault-Rupture Statistical Analysis
p.2410

Probability Analysis of Longitudinal Horizontal Nonlinear Stochastic Seismic Response of Reinforced Concrete Bridge
p.2419

Comparative Study on Major Damage Index Models
p.2424

Pseudo-Dynamic Testing Method Based on External Displacement Control
p.2428

Implementation of Data Record Simultaneously in Seismic PSD Test
p.2433

Numerical Simulation of Tectonic Stress Field in Longmenshan Tectonic Belts after Earthquake
p.2440

Analysis on Earthquake Damage Forms and Affecting Factors of Underground Cavern
p.2444

Applied Research Of BP Neural Network In Earthquake Prediction
p.2449

HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 204-208Pseudo-Dynamic Testing Method Based on External...

Pseudo-Dynamic Testing Method Based on External Displacement Control

Abstract:

In order to accelerate the velocity and improve the accuracy of the pseudo-dynamic testing，the external displacement control method is put forward based on the hardware control. The internal displacement sensor of the actuator is invalid on control and substituted by the LVDT displacement sensor connected with the specimen. The process of the feedback displacement and command error compensation is quickly implemented by the internal closed-loop control of the actuator. Compared with the iteratively approximate load control, this method not only makes the testing velocity fast, but also enables the error between command and feedback to be “zero”. The fast pseudo-dynamic testing about a cantilever beam is carried out by applying appropriate PID parameters of the actuator. The testing result shows that although this method has rather high requirements in the control system and electro-hydraulic servo load device, and the risk to some extent, the fast response of the actuator can be firmed by applying appropriate PID control parameters. This method provides a fast testing technology for velocity-dependent structures or specimens.

You might also be interested in these eBooks

Progress in Industrial and Civil Engineering

View Preview

Info:

Periodical:

Applied Mechanics and Materials (Volumes 204-208)

Pages:

2428-2432

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.204-208.2428

Citation:

Cite this paper

Online since:

October 2012

Authors:

Da Peng Wang, Shi Zhu Tian

Keywords:

Closed-Loop Control, Error Compensation, External Displacement Control, PID Parameters, Pseudo-Dynamic Testing

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] Takanashi K, et al. Journal of the Institute Science, University of Tokyo, Vol. 26, No. 11 (1974), pp.13-25.

Google Scholar

[2] Nakashima M, et al. Earthquake Engineering and Structural Dynamics, Vol. 21, No. 1 (1992), pp.79-92.

Google Scholar

[3] Mosqueda G, Stojadinovic B, and Mahin S. Earthquake Engineering Research Center, University of California, Berkeley (2005).

Google Scholar

[4] Nakashima M and Masaoka N. Earthquake Engineering and Structural Dynamics, Vol. 28 (1999), pp.393-420.

Google Scholar

[5] Dorka U E and Heiland D. Fast online earthquake simulation using a novel PC supported measurement and control concept. In: Proceedings of the 4th International Conference on Structural Dynamics, Southhampton UK (1991), pp.636-645.

Google Scholar

[6] Bonnet P A, Lim C N, Williams M S, et al. Earthquake Engineering and Structural Dynamics, Vol. 36, No. 1 (2007), pp.119-141.

Google Scholar