Calculation method of anti-backward-tilting buffer force of luffing jib tower crane

被引：0
|
作者：
Liu Y. [1 ]
机构：
[1] College of Engineering and Design, Hunan Normal University, Changsha
来源：
Jilin Daxue Xuebao (Gongxueban)/Journal of Jilin University (Engineering and Technology Edition) | 2023年 / 53卷 / 10期
关键词：
buffer force; dynamic load factor; luffing jib tower crane; mechanical design and theory; non-parametric model;
D O I：
10.13229/j.cnki.jdxbgxb.20211337
中图分类号：
学科分类号：
摘要：
To address accurately calculate the buffer force of anti-backward-tilting device （ABTD） of luffing jib tower crane，considering the influence of tower body elastic vibration and boom rigid body rotation on the dynamics of ABTD，a mathematical model describing the relative movement of buffer is established. Combined with the buffer characteristic model of ABTD， the mathematical relationship between the buffer force of ABTD and dynamic characteristics of luffing jib tower crane is established. Taking a luffing jib tower crane equipped with hydraulic ABTD as the research object，multiple parameters of the buffer force calculation model are identified，and the buffer force calculation model is verified by a series of anti-backward-tilting test. According to the experimental value of buffer force of ABTD，the dynamic load factor of unloading load is calculated，and the relevant requirements of dynamic load factor under sudden unloading condition in Design Rules for Cranes are corrected，which provides a reference for the revision of relevant national standards for the design of luffing jib tower crane. © 2023 Editorial Board of Jilin University. All rights reserved.
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页码：2785 / 2794
页数：9
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