Results 1 to 10 of about 41,769 (214)

Control method of chatter vibration based on inverse analysis of end milling chatter mark

Nihon Kikai Gakkai ronbunshu, 2017
It is well known that a regular chatter mark appears on the machined surface when chatter vibration occurs. There must be an essential information relationship between the chatter mark and the vibration stability.
Toshiki HIROGAKI, Eiichi AOYAMA, Ryosuke SHIOTA, Kaito AOTANI   +3 more
doaj   +3 more sources

Verification of pattern formation mechanism using voxel model and estimation accuracy for inverse analysis of vibration phenomenon using two-dimensional discrete Fourier transform of end mill chatter mark

Nihon Kikai Gakkai ronbunshu, 2021
The vibration generated at the contact point between a tool blade and a machined surface during cutting significantly influences the generation mechanism of regenerated chatter vibration.
Nobutoshi OZAKI, Haruki MINETAKA, Shota MATSUI, Toshiki HIROGAKI, Eiichi AOYAMA   +4 more
doaj   +3 more sources

State estimation based on image processing of chatter mark on end-milled surface by two-dimensional discrete Fourier transform

Nihon Kikai Gakkai ronbunshu, 2019
In this report, we propose a method to analyze the frequency and phase difference of self-excited vibration during cutting by using image analysis for the photographed image of the machined surface by end milling.
Nobutoshi OZAKI, Shota MATSUI, Toshiki HIROGAKI, Eiichi AOYAMA   +3 more
doaj   +3 more sources

On the stability of high-speed milling with spindle speed variation [PDF]

, 2010
Spindle speed variation is a well-known technique to suppress regenerative machine tool vibrations, but it is usually considered to be effective only for low spindle speeds.
BP Mann, E Al-Regib, E Budak, E Solis, F Yang, Gilles Dessein, Grégoire Peigné, GS Duncan, H Paris, H Zhang, J Tlusty, J Tlusty, JS Sexton, JS Sexton, JS Sexton, Lionel Arnaud, M Zatarain, MA Davies, ML Campomanes, ND Sims, PV Bayly, R Radulescu, RPH Faassen, S Jayaram, S Sastry, S Seguy, S Seguy, S Smith, SA Tobias, SC Lin, SD Merdol, Sébastien Seguy, T Insperger, T Insperger, T Insperger, T Insperger, T Surmann, T Takemura, Tamás Insperger, TC Tsao, XH Long, Y Altintas, Y Altintas, Y Altintas   +43 more
core   +4 more sources

Chatter Control by Spindle Speed Variation in High-Speed Milling [PDF]

, 2009
High-speed milling operations are often limited by regenerative vibrations. The aim of this paper is to analyze the effect of spindle speed variation on machine tool chatter in high-speed milling. The stability analysis of triangular and sinusoidal shape
Arnaud, Lionel, Dessein, Gilles, Insperger, Tamás, Seguy, Sébastien   +3 more
core   +2 more sources

Exploring Processes and Dynamics of Mystical Contemplative Meditation: Some Christian-Buddhist Parallels in Relation to Transpersonal Theory [PDF]

, 2015
This paper explores Christian contemplative meditation, focusing on the prayer of Recollection as it is developed especially by Evelyn Underhill and St. Teresa of Avila. It outlines the practice and explores possible theoretical and therapeutic dynamics,
Stoeber, Michael
core   +1 more source

Basins of attraction of the bistable region of time-delayed cutting dynamics [PDF]

, 2017
This research is supported by National Natural Science Foundation of China under Grant No. 11502048 and 11572224, and Fundamental Research Funds for the Central Universities under Grant No.ZYGX2015KYQD033.Peer reviewedPublisher ...
Wiercigroch, Marian, Xu, Jian, Yan, Yao
core   +1 more source

Multiparty talk in the novel: the distribution of tea and talk in a scene from Evelyn Waugh's Black Mischief [PDF]

, 2002
This article argues that studies of fictional dialogue have hitherto neglected the specific dynamics of multiparty talk. I will contend that this neglect contributes to the perpetuation of an "ideal" of conversation that allows no space for either the ...
Thomas, Bronwen
core   +1 more source

Suppression of period doubling chetter in high-speed milling by spindle speed variation [PDF]

, 2011
Spindle speed variation is a well known technique to suppress regenerative machine tool vibra- tions, but it is usually considered to be effective only for low spindle speeds.
Arnaud, Lionel, Dessein, Gilles, Insperger, Tamás, Peigné, Grégoire, Seguy, Sébastien   +4 more
core   +3 more sources

Nonlinear dynamics of a regenerative cutting process [PDF]

, 2012
We examine the regenerative cutting process by using a single degree of freedom non-smooth model with a friction component and a time delay term. Instead of the standard Lyapunov exponent calculations, we propose a statistical 0-1 test analysis for chaos
Litak, Grzegorz, Radons, Guenter, Schubert, Sven   +2 more
core   +2 more sources