Paper Title:
Dynamic Optimization of Lift-Arm Luffing Mechanism of Rotary Drilling Rig
  Abstract

It is a spatial hydraulic-linkage mechanism of the lift-arm luffing mechanism of rotary drilling rig. During the operation, all of the reaction forces (torques) acting on the drill are transmitted to the swing platform by the mechanism. The design quality of the mechanism has a direct effect on the dynamic performance of the rotary drilling rig. A model based on the SWDM-22 rotary drilling rig developed by Hunan Sunward Intelligent Machinery CO., LTD was applied for the optimization study. The Lagrange equation was established on the basis of dynamic mechanics analysis of the equivalent planar hydraulic-linkage mechanism. The load of the hydraulic cylinder of lift-arm was solved and the objective function of the dynamic optimization was established. It is a relative complicated mechanism of the working device and the complete set of constraints were constituted by formulating the structural constraints, position constraints, kinematic constraints, dynamic constraints, and construction safety constraints respectively. The genetic algorithm was adopted to implement the dynamic optimization in consideration of the characteristic of the mathematical model. An optimized design was obtained and the value of the objective function was reduced by 12%. Some discussions about the influence of the evaluation of design variables on the objective function were made and some useful results were obtained.

  Info
Periodical
Advanced Materials Research (Volumes 156-157)
Edited by
Jingtao Han, Zhengyi Jiang and Sihai Jiao
Pages
1256-1260
DOI
10.4028/www.scientific.net/AMR.156-157.1256
Citation
H. M. Kang, Q. H. He, J. X. Zhu, Y. S. Xu, "Dynamic Optimization of Lift-Arm Luffing Mechanism of Rotary Drilling Rig", Advanced Materials Research, Vols. 156-157, pp. 1256-1260, 2011
Online since
October 2010
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Li Dai, Jian Wang, Bo Zhao, Jie Liu
Abstract:For the concrete pump truck, the movements of the arm and the hydraulic cylinder are analyzed respectively with multi-body dynamic theory....
806
  | Authors: Li Dai, Yao Wu, Jian Wang, Yun Gong Li, Yu Liu
Chapter 4: Robotics and Human Interface
Abstract:Flexible hydraulic robotic arm is a complicated system which coupled by mechanics and hydraulics. It is widely applied in all kinds of large...
334
Authors: Jin Liang Li, Chuan Yi Lv, Si Ying Ling, Zheng Fang Wang
Chapter 3: Mechanical Engineering and Applied Mechanics
Abstract:Applying structural theories of series connected robot, the joint coordinate series connected robots were finally determined as the design...
422
Authors: Ji Xin Liu, Feng Ju Hu, Ji Dai Wang, Yuan Yuan Xu
Chapter 2: Applied Mechanics, Mechanical Engineering and Fuel
Abstract:In the process of the coal technology development, anchor installation speed is one of the main factors that affect the rapid excavation. The...
170