起重运输机械
起重運輸機械
기중운수궤계
HOISTING AND CONVEYING MACHINERY
2015年
5期
88-90,91
,共4页
非概率可靠性%强夯机臂架%侧向刚度
非概率可靠性%彊夯機臂架%側嚮剛度
비개솔가고성%강항궤비가%측향강도
non-probability reliability%cantilever of dynamic compactor%lateral rigidity
强夯机在使用中因臂架侧向刚度不足而导致事故频发，造成严重经济损失和人员伤亡，而引起事故的起升动载系数和起升绳偏摆角不是确定值。鉴于此，提出一种基于非概率可靠性理论的强夯机臂架侧向刚度分析方法，对引起事故的未知有界变量用区间集合表示，建立非概率可靠性模型，计算臂架侧向刚度的可靠性指标。将该指标与臂架侧向刚度的安全系数相比较，验证该方法的有效性，为强夯机臂架基于可靠性的设计提供参考。
彊夯機在使用中因臂架側嚮剛度不足而導緻事故頻髮，造成嚴重經濟損失和人員傷亡，而引起事故的起升動載繫數和起升繩偏襬角不是確定值。鑒于此，提齣一種基于非概率可靠性理論的彊夯機臂架側嚮剛度分析方法，對引起事故的未知有界變量用區間集閤錶示，建立非概率可靠性模型，計算臂架側嚮剛度的可靠性指標。將該指標與臂架側嚮剛度的安全繫數相比較，驗證該方法的有效性，為彊夯機臂架基于可靠性的設計提供參攷。
강항궤재사용중인비가측향강도불족이도치사고빈발，조성엄중경제손실화인원상망，이인기사고적기승동재계수화기승승편파각불시학정치。감우차，제출일충기우비개솔가고성이론적강항궤비가측향강도분석방법，대인기사고적미지유계변량용구간집합표시，건립비개솔가고성모형，계산비가측향강도적가고성지표。장해지표여비가측향강도적안전계수상비교，험증해방법적유효성，위강항궤비가기우가고성적설계제공삼고。
Accidents resulting from insufficient lateral rigidity of the compactor cantilever takes place frequently during use,causing serious economic damage and casualties,but the lifting dynamic load factor and tilt angle of lifting rope resul-ting in accidents are undetermined.In this case,the paper puts forward the lateral rigidity analysis method for cantilever of dynamic compactor based on non-probability reliability theory,with the unknown bounded variable resulting in accidents to be represented by the interval set to develop the non-probability reliability,in order to work out the reliable index of the lat-eral rigidity of the cantilever.The index is compared with the safety factor of the lateral rigidity,which verifies that the method is effective,providing guidance for reliable design of the cantilever of dynamic compactor.
