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동하중을 받는 구조물의 동적특성에 관한 설계 관점에서의 고찰

Title
동하중을 받는 구조물의 동적특성에 관한 설계 관점에서의 고찰
Other Titles
An Investigation of Dynamic Characteristics of Structures Subjected to Dynamic Load from the Viewpoint of Design
Author
박경진
Keywords
Dynamic Load(동하중); Static Load(정하중); Natural Frequency(고유진동수); Modal Analysis(모드해석); Homogeneous Solution(일반해); Particular Solution(특수해); Equivalent Static Load Method(등가정하중법); Dynamic Response Optimization(동적반응최적설계)
Issue Date
2006-10
Publisher
대한기계학회
Citation
대한기계학회논문집 A, v. 30, No. 10, Page. 1,194 - 1,201
Abstract
All the loads in the real world are dynamic loads and structural optimization under dynamic loads is very difficult. Thus the dynamic loads are often transformed to static loads by dynamic factors, which are believed equivalent to the dynamic loads. However, due to the difference of load characteristics, there can be considerable differences between the results from static and dynamic analyses. When the natural frequency of a structure is high, the dynamic analysis result is similar to that of static analysis due to the small inertia effect on the behavior of the structure. However, if the natural frequency of the structure is low, the inertia effect should not be ignored. Then, the behavior of the dynamic system is different from that of the static system. The difference of the two cases can be explained from the relationship between the homogeneous and the particular solutions of the differential equation that governs the behavior of the structure. Through various examples, the difference between the dynamic analysis and the static analysis are shown. Also dynamic response optimization results are compared with the results with static loads transformed from dynamic loads by dynamic factors, which show the necessity of the design considering dynamic loads.
URI
http://www.dbpia.co.kr/journal/articleDetail?nodeId=NODE00762827&language=ko_KRhttps://repository.hanyang.ac.kr/handle/20.500.11754/108739
ISSN
1226-4873
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MECHANICAL ENGINEERING(기계공학과) > Articles
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