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http://dx.doi.org/10.3795/KSME-A.2014.38.6.619

Preliminary Study on Structural Optimization with Control Variables Using Equivalent Static Loads for Spring-damper Control Systems  

Yoo, Nam-Sun (Dept. of Mechanical Engineering, Hanyang Univ.,)
Jung, Ui-Jin (Dept. of Mechanical Engineering, Hanyang Univ.,)
Park, Gyung-Jin (Dept. of Mechanical Engineering, Hanyang Univ.,)
Kim, Tai-Kyung (School of Mechanical Engineering, Hoseo Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.38, no.6, 2014 , pp. 619-627 More about this Journal
Abstract
An optimization method is proposed for the simultaneous design of structural and control systems using the equivalent static loads. In the past researches, the control parameters of such feedback gains are obtained to improve some performance in the steady-state. However, the actuators which have position and velocity feedback gains should be designed to exhibit a good performance in the time domain. In other words, the system analysis should be conducted for the transient-state in dynamic manner. In this research, a new equivalent static loads method is presented to treat the control variables as the design variables. The equivalent static loads (ESLs) set is defined as a static load set which generates the same displacement field as that from dynamic loads at a certain time. The calculated sets of ESLs are applied as multiple loading conditions in the optimization process. Several examples are solved to validate the proposed method.
Keywords
Equivalent Static Loads; Structural Optimization; Control Variable;
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Times Cited By KSCI : 1  (Citation Analysis)
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