岸边集装箱起重机大车最佳起制动加速度研究

The Braking Acceleration Performance Research of Quayside Container Crane Gantry

保证起制动时间和平稳运行速度不变,采用矩形、三角形、抛物线形以及正弦形加速度曲线利用ANSYS软件对岸桥整机的起制动过程进行瞬态动力响应分析比较。分析表明,正弦形加速度曲线能够有效的控制岸桥整机沿大车方向上的晃动量,同时减小冲击载荷。给出了门框立柱的晃动量和前大梁端部晃动量之间的关系,使设计工程师在设计初期就能够充分地了解起重机的动力学特性,减小前大梁的晃动量,改善岸桥的操作性能。

Transient dynamic response analysis for the whole crane structures is done by using ANSYS software. The acceleration and deceleration curves are in rectangle, triangle, parabolic or sinusoid shape, and they are in the same breaking time and stable velocity. It is shown that when controlled by sinusoid acceleration curve the crane is acted on the lowest impact loads and the shaking displacement is also the smallest. A shaking displacement rela- tionship formula between two points which are at the end of beam and in the middle of crane frame is presented. It is convenient for designers to reduce the shaking displacement of the beam to improve the crane operational perform- ance at the beginning of the design.