Specifications

Volume: 34
Issue: 5
Issue date: May 2013
Publication year: 2013
Pages: 611-619
Language: Chinese
ISSN: 10001093
CODEN: BIXUD9
Document type: Journal article (JA)
Publisher: China Ordnance Society, P.O. Box 2431, Beijing, 100081, China
Abstract: Based on the extended Hamilton principle, the finite element model of lateral
vibration of drilling shaft is established using Timoshenko element model. Under the condition of
maintain nonlinear analysis precision, the linear degrees of drilling shaft system will be truncated
using mode synthesis technique with free-interface but its nonlinear degrees are retained in the
physical space, and simultaneously, the eliminated eigenmodes are compensated with the
residual attachment modes. So the DOF of the coupled system is reduced. Based on the updated
model, the natural frequency influence rules of the drilling shaft system, as changing the distance
of the intermediate supports, the length of drilling shaft and its the inner diameter, are discussed.
By drilling the structural style of intersection hole as an example, the dynamic stable region and
instability modes of the drilling shaft system are analyzed under the different rotating speed and
drilling depth in drilling process. The numerical results show that the proposed methods for the
dynamic design of complex drilling deep hole machine and the analysis of machining accuracy
provide a theoretical basis.
Number of references: 14
Main heading: Numerical methods
Controlled terms: Machinery - Machining - Nonlinear analysis
Uncontrolled terms: Deep hole drilling - Drilling tool - Machinery
manufacture - Modal reduction - Stable region
Classification code: 601 Mechanical Design - 604.2 Machining Operations - 921
Mathematics - 921.6 Numerical Methods
DOI: 10.3969/j.issn.1000-1093.2013.05.016
Database: Compendex
Compilation and indexing terms, © 2013 Elsevier Inc.
4.
Accession number: 20132716461206
Title: Dynamic mechanics of soil erosion by runoff on loess slope
Authors: Peng, Li1 ; Linhong, Zhang1 ; Zhanbin, Li1, 2 ; Liangyong, Zheng1, 3/李鹏;;李占斌;;
Author affiliation:
1 Xi'an University of Technology, Xi'an Shaanxi, 710048, China
2 Institute of Soil and Water Conservation, Chinese Academy of Sciences, Ministry of Water
Resource, Yangling Shaanxi, 712100, China
3 Shandong Survey and Design Insititute of Water Conservancy, Jinan, Shandong, 250013,
China