Paper Title:
Application of Frequency Method for Defining Threaded Joint Tightening Degree
  Abstract

There is a big variety of machines and equipment – internal combustion engines, aviation parts, building frames - joined by threaded joints, realized as bolt, nut and pin ones. For successful and safe exploitation of such equipment, it is required to check the tightening degree of threaded joints. There are few known methods of such control and one is presented in this paper. The proposed method is based on contact stiffness and friction change from thread tightening degree. At the same time, tightening changes with sufficient significance the dynamical properties of such a system - natural and resonance frequencies, amplitude – frequency and amplitude-phase characteristics, so, that it is possible to evaluate the tightening degree of the investigated joint. Dynamic properties are defined by exciting transient process between bolt head and tightened by this bolt detail using as short as possible force impact. Sensors register analogical signal of transient process and transmit it to a special computer card. The computer card converts analogical signal to code. Code is saved in the computer file for further processing. Processing data is saved in this file, and we find desired dynamical characteristics. Using special experimental bench proved that dynamic characteristics are sensitive enough to threaded joint tightening degree and the method is applicable to practice.

  Info
Periodical
Solid State Phenomena (Volume 113)
Edited by
Nin Bizys, Andrejus Henrikas Marcinkevicius
Pages
277-280
DOI
10.4028/www.scientific.net/SSP.113.277
Citation
V. K. Augustaitis, V. Bučinskas, V. Pauža, "Application of Frequency Method for Defining Threaded Joint Tightening Degree", Solid State Phenomena, Vol. 113, pp. 277-280, 2006
Online since
June 2006
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: Shariman Abdullah, Musa Mailah, Howe Hing Tang
Chapter 8: Manufacturing Systems and Automation
Abstract:Data acquisition system (DAQ) plays an important role in research activities. Commercially available DAQ can be expensive and most are PC...
806
Authors: Xin Liao, Jian Run Zhang, Dong Lu
Chapter 4: Applied Mechanics and Mechanical Technologies
Abstract:In this study, a non-linear finite element model for a simplified single-bolted joint structure model is built. Static analysis on the...
694
Authors: Janusz Kwaśniewski, Ireneusz Dominik, Krzysztof Lalik, Waldemar Korzeniowski, Krzysztof Zagórski, Krzysztof Skrzypkowski
Chapter 3: Methods of Measurements, Modeling and Identification
Abstract:Health monitoring of rock bolts can indirectly indicate the state of rock which is crucial for mining safety. This paper presents an...
186