Experimental study of ELID grinding based on the active control of oxide layer

2010 ◽  
Vol 210 (13) ◽  
pp. 1748-1753 ◽  
Author(s):  
Lijian Yang ◽  
Chengzu Ren ◽  
Xinmin Jin
Keyword(s):  
Experimental Study ◽  
Oxide Layer ◽  
Active Control ◽  
Elid Grinding

Numerical and experimental study of an active control logic for modifying the acoustic performance of single-layer panels

2021 ◽  
pp. 116608
Author(s):  
Francesco Ripamonti ◽  
Anthony Giampà ◽  
Riccardo Giona ◽  
Ling Liu ◽  
Roberto Corradi
Keyword(s):  
Experimental Study ◽  
Active Control ◽  
Single Layer ◽  
Control Logic ◽  
Acoustic Performance

Principle and Method for Oxidation Layer Measurement in Electrolytic In-Process Dressing (ELID) Grinding

2011 ◽  
Vol 301-303 ◽  
pp. 515-519
Author(s):  
Bao Ji Ma ◽  
Yin Xia Wang
Keyword(s):  
Oxide Layer ◽  
Measurement Method ◽  
Current Sensor ◽  
Laser Sensor ◽  
Calculation Methods ◽  
Method Evaluation ◽  
Elid Grinding ◽  
Inner Surface ◽  
Variation Characteristics ◽  
Measurement Principle

Based on the analysis of formation and variation characteristics of oxide layers in ELID grinding, a new measurement principle and method for oxide layer measurement in ELID grinding was proposed. The thickness of the oxide layer was obtained based on measurement both outside surface and inner surface of the oxide layer by laser sensor and eddy current sensor. Calculation methods for measurement of the oxide layer in different ELID grinding periods were presented. In order to verify the correctness of the measurement principle and measurement method, evaluation experiments were down. Results show that the precision of the measurement is sufficient to be applied in ELID grinding.

Experimental study of the active control applied to the flow past a backward facing ramp

2018 ◽  
Vol 59 (3) ◽  
Author(s):  
Dan Hlevca ◽  
Patrick Gilliéron ◽  
Francesco Grasso
Keyword(s):  
Experimental Study ◽  
Active Control ◽  
Flow Past

A study on the equilibrium condition of the oxide layer in ELID grinding

2010 ◽  
Vol 3 (1) ◽  
pp. 25 ◽  
Author(s):  
Indraneel Biswas ◽  
A. Senthil Kumar ◽  
Mustafizur Rahman
Keyword(s):  
Oxide Layer ◽  
Equilibrium Condition ◽  
Elid Grinding

Experimental Study of Active Control for MDOF Seismic Structures

1989 ◽  
Vol 115 (8) ◽  
pp. 1609-1627 ◽  
Author(s):  
L. L. Chung ◽  
R. C. Lin ◽  
T. T. Soong ◽  
A. M. Reinhorn
Keyword(s):  
Experimental Study ◽  
Active Control

CONTROL OF SURFACE MODIFIED LAYER ON METALLIC BIOMATERIALS BY AN ADVANCED ELID GRINDING SYSTEM (EG-X)

2006 ◽  
Vol 20 (25n27) ◽  
pp. 3605-3610 ◽  
Author(s):  
MASAYOSHI MIZUTANI ◽  
JUN KOMOTORI ◽  
KAZUTOSHI KATAHIRA ◽  
HITOSHI OHMORI
Keyword(s):  
Oxide Layer ◽  
Surface Properties ◽  
Photoelectron Spectroscopy ◽  
Titanium Implants ◽  
X Ray ◽  
Elid Grinding ◽  
Modified Layer ◽  
Surface Modified ◽  
Grinding System

The biocompatibility of titanium implants with different surface properties is investigated. We prepared three types of specimens, one ground by the newly developed ELID grinding system, another ground by conventional ELID grinding, and the other polished by SiO 2 powder. These surfaces were characterized and, the number of cell and cytotoxicity in in-vitro were measured. Energy Dispersive X-ray Spectroscopy (EDS), X-ray Photoelectron Spectroscopy (XPS) and Transmission Electron Microscope (TEM) revealed that the modified ELID system can create a significantly thick oxide layer and a diffused oxide layer, and also can control the thickness of a modified layer. The results of cell number and cytotoxicity showed that the sample ground by the modified system had the highest biocompatibility. This may have been caused by improvement of chemical properties due to a surface modified layer. The above results suggest that this newly developed ELID grinding system can create the desirable surface properties. Consequently, this system appears to offer significant future promise for use in biomaterials and other engineering components.

scholarly journals Experimental Study on Active Control of Surge in a Centrifugal Compression System

2000 ◽  
Vol 6 (5) ◽  
pp. 383-392
Author(s):  
Nie Chaoqun ◽  
Chen Jingyi ◽  
Chen Naixing
Keyword(s):  
Experimental Study ◽  
Control System ◽  
Active Control ◽  
Nonlinear Interaction ◽  
Compression System ◽  
Operating Range ◽  
Stable Operating ◽  
Control Scheme ◽  
On Line

An experimental study has been carried out on the active control of surge in a centrifugal compression system. With a computerized on-line control scheme, the surge phenomenon is suppressed and the stable operating range of the system is extended. In order to design the active control scheme and choose the desired parameters of the control system inputs, special emphases have been placed on the development of surge inception and the nonlinear interaction between the system and the actuator. By use of the method designed in the present work, the results of active control onsurge have been demonstrated for the different B parameters, different prescribed criteria and different control frequencies.

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