A comparative study on book shelf structure based on different domain modal analysis

The dynamic analysis method and theory of double-tower connected structures is discussed in this paper .Then modal analysis、static and dynamic time-history analysis is researched with the FEM software ANSYS. Through the structure of monomer and comparative study of the structure in different locations, the basic rules of dynamic characteristics and the rules of layout corridor can be achieved. In addition, by symmetric and asymmetric conjoined comparative study, the basic choose rules of structure type can also be achieved.

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A Comparative Study between GFRP Blade, GFRP Blade with Steel Wire Mesh and GFRP Blade with Aluminum Sheet Metal Reinforcement Based on Modal Analysis Technique

International Journal of Engineering Research and ◽

10.17577/ijertv6is040741 ◽

2017 ◽

Vol V6 (04) ◽

Author(s):

Nilesh P. Chandgude ◽

Prof. Nitin D. Gadhave ◽

Keyword(s):

Comparative Study ◽

Modal Analysis ◽

Sheet Metal ◽

Steel Wire ◽

Wire Mesh ◽

Aluminum Sheet ◽

Analysis Technique ◽

Steel Wire Mesh

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The Application of an Active Vibration Regulation System to Improving Driving Comfort in Convertible Vehicles: A Comparative Study of Regulator Design Methodologies

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.7-8.277 ◽

2007 ◽

Vol 7-8 ◽

pp. 277-282

Author(s):

Mahyar Mahinzaeim ◽

Jack M. Hale ◽

D.C. Swailes ◽

Reinhard Schmidt ◽

B. Johanning

Keyword(s):

Dynamic Response ◽

Comparative Study ◽

Modal Analysis ◽

Vibration Reduction ◽

Feedback Regulation ◽

Regulation System ◽

Actuation System ◽

Avr System ◽

Active Vibration ◽

Measurement Uncertainties

This paper considers the development of an active vibration regulation (AVR) system on a convertible car equipped with a hydraulic actuation system. Experimental modal analysis is used to identify a model from the measured dynamic response of the car body and the hydraulic actuators. Two different methods are used to design the AVR system in the presence of process and measurement uncertainties, namely optimal feedback regulation and proportional-integralderivative (PID) compensation. With the aim of reducing the amplitude of the first eigenmode of the system considered, the AVR algorithms are digitally implemented and real-time experiments involving a hydro-pulse four poster rig are conducted. The results from these are evaluated and it is shown that the AVR systems achieve a significant vibration reduction in the first eigenmode, which is important for passenger comfort.

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