河南科学
河南科學
하남과학
HENAN SCIENCE
2014年
8期
1499-1505
,共7页
王俊波%牛双建%李创第
王俊波%牛雙建%李創第
왕준파%우쌍건%리창제
非线性流滞阻尼器%随机风振响应%等效线性化法%复模态法%风荷载取值
非線性流滯阻尼器%隨機風振響應%等效線性化法%複模態法%風荷載取值
비선성류체조니기%수궤풍진향응%등효선성화법%복모태법%풍하재취치
nonlinear fluid viscous dampers%random wind-induced response%equivalent linearization%complex mode%equivalent wind action
针对非线性流滞阻尼器耗能结构在Davenport谱风振激励下的随机响应及等效风荷载取值进行了系统研究。首先建立了结构的非线性运动方程;经过等效线性化后,采用复模态理论解耦,进而用随机振动方法获得结构风振响应解析式和等效风荷载取值的计算公式,从而建立了结构非线性随机风振响应的分析方法。
針對非線性流滯阻尼器耗能結構在Davenport譜風振激勵下的隨機響應及等效風荷載取值進行瞭繫統研究。首先建立瞭結構的非線性運動方程;經過等效線性化後,採用複模態理論解耦,進而用隨機振動方法穫得結構風振響應解析式和等效風荷載取值的計算公式,從而建立瞭結構非線性隨機風振響應的分析方法。
침대비선성류체조니기모능결구재Davenport보풍진격려하적수궤향응급등효풍하재취치진행료계통연구。수선건립료결구적비선성운동방정;경과등효선성화후,채용복모태이론해우,진이용수궤진동방법획득결구풍진향응해석식화등효풍하재취치적계산공식,종이건립료결구비선성수궤풍진향응적분석방법。
In this paper,the random response and equivalent wind action of structures with nonlinear fluid viscous dampers subjected to Davenport random wind-induced model excitation were studied systematically. The nonlinear dynamic equations of structures were established. The complex model method was used to disconnect the equations after the equivalent linearization. The analitic solution of response random wind-induced response was obtained.