机械研究与应用
機械研究與應用
궤계연구여응용
MECHANICAL RESEARCH & APPLICATION
2014年
5期
175-178
,共4页
登机桥%立柱%稳定性%临界载荷
登機橋%立柱%穩定性%臨界載荷
등궤교%립주%은정성%림계재하
aerobridge%column%stability%critical load
建立登机桥和立柱的力学模型，对左、右立柱的稳定承载能力进行研究，再从整体角度研究立柱框架的稳定性，分别得出左、右柱及整体框架的临界载荷。研究三种情形的临界载荷为：登机桥右柱油缸出现故障，无油压力，仅有左柱受力；左柱丝杠失效不能承载，仅有右柱受力；左右柱均正常工作，两柱同时受力。
建立登機橋和立柱的力學模型，對左、右立柱的穩定承載能力進行研究，再從整體角度研究立柱框架的穩定性，分彆得齣左、右柱及整體框架的臨界載荷。研究三種情形的臨界載荷為：登機橋右柱油缸齣現故障，無油壓力，僅有左柱受力；左柱絲槓失效不能承載，僅有右柱受力；左右柱均正常工作，兩柱同時受力。
건립등궤교화립주적역학모형，대좌、우립주적은정승재능력진행연구，재종정체각도연구립주광가적은정성，분별득출좌、우주급정체광가적림계재하。연구삼충정형적림계재하위：등궤교우주유항출현고장，무유압력，부유좌주수력；좌주사강실효불능승재，부유우주수력；좌우주균정상공작，량주동시수력。
The mechanical models of the frame and columns of aerobridge are established, and the stability and load-carrying capacity of both left and right columns, as well as the overall frame are studied, then the critical loads of left and right columns and the overall frame are respectively obtained. In this paper, different critical load under three kinds of situations are stud-ied: the failure of no oil pressure in right column cylinder of the aerobridge, and only the left column being pressed; screw of the left column disabled to bear, and only right column being loaded; both left and right columns are all under pressure in nor-mal condition.
