起重运输机械
起重運輸機械
기중운수궤계
HOISTING AND CONVEYING MACHINERY
2014年
10期
82-85
,共4页
电动单梁起重机%应力测试%评价特征值
電動單樑起重機%應力測試%評價特徵值
전동단량기중궤%응력측시%평개특정치
electric single-girder crane%stress test%eigenvalue evaluation
通过对LD5 T电动单梁起重机主梁应力测试数据分析，提取出主梁额定载荷下静态应力稳定值，各吊载动作动态冲击振动固有频率和幅值，各吊载动作动载系数和冲击振动阻尼比系数等评价主梁性能的特征值。为起重机械主梁金属结构性能综合评价提供重要的数据依据。
通過對LD5 T電動單樑起重機主樑應力測試數據分析，提取齣主樑額定載荷下靜態應力穩定值，各弔載動作動態遲擊振動固有頻率和幅值，各弔載動作動載繫數和遲擊振動阻尼比繫數等評價主樑性能的特徵值。為起重機械主樑金屬結構性能綜閤評價提供重要的數據依據。
통과대LD5 T전동단량기중궤주량응력측시수거분석，제취출주량액정재하하정태응력은정치，각조재동작동태충격진동고유빈솔화폭치，각조재동작동재계수화충격진동조니비계수등평개주량성능적특정치。위기중궤계주량금속결구성능종합평개제공중요적수거의거。
The stress test data analysis is performed for the girder of LD5 T electric single-girder crane,to get the ei-genvalues for evaluation of girder performance including the stabilized value of the static stress with the girder under rated load,inherent frequency of dynamic impact vibration and amplitude of each suspended load action,dynamic factor of each suspended load action,and impact vibration damping ratio,etc.,providing important data basis for comprehensive per-formance evaluation of main metal structures of hoisting machinery.
