boom crane often has a boom with varying cross section. boom weight, its construction and main dimension significantly affects the crane performance.
臂架式起重机常采用变截面的臂架,臂架的自重、结构型式与主要尺寸对起重机的性能有重要的影响。
telescopic boom crane in the performance of a substantial high from the performance or the impact of conditions is essential.
伸缩臂的性能对起重机在大幅度高起升工况下的性能的影响至关重要。
the technique was applied to a simulated model of a boom crane slewing at a constant luff angle while reeling in the cable and linearized around the payload equilibrium position.