Life Prediction of the Oil-Free Piston Rings in the Air-Powered Swashplate Engine

2012 ◽  
Vol 538-541 ◽  
pp. 3008-3011
Author(s):  
Yong Qing Lian ◽  
Qin Chao Xu ◽  
De Kui Ren
Keyword(s):  
Life Prediction ◽  
New Method ◽  
Piston Rings ◽  
Free Piston ◽  
Working Principle

The air-powered swashplate engine is different from the oil-free compressor in working principle and mechanism. In order to predict the life of the oil-free piston rings of the engine , a new method is put forward, and is used to the life prediction of the rings. The results shows that the oil-free piston rings which is designed for the air-powered swashplate engine are feasible .

A New Method of Temperature Measure of Rotary Wheel Disc

2011 ◽  
Vol 143-144 ◽  
pp. 582-585
Author(s):  
Yu Xian Zhang ◽  
Li Fu Wang ◽  
Fang Yao
Keyword(s):  
High Temperature ◽  
New Method ◽  
Turbine Wheel ◽  
Infrared Thermometer ◽  
Point Temperature ◽  
Structural Principle ◽  
Practical Engineering ◽  
Working Principle ◽  
Temperature Measure ◽  
Sketch Map

First of all, the working principle of infrared thermometer and the structural principle sketch map for measuring the temperature of rotary wheel disc through infrared thermometric technology are briefly introduced from the physics aspect. Secondly, the type of infrared thermometer is selected according to the practical request of low or high temperature measure of rotary wheel disc. Finally, the same point temperature of the turbine wheel disc of an engine is measured through infrared thermometer and thermoelectric couple in the heating status, and the measure results are compared, which dictates that the infrared thermometric system could achieve an upper detection precision and satisfy the practical engineering request.

An On-Machine Separation Method for Straightness, Yawing and Rolling Errors of a Linear Slide

2009 ◽  
Author(s):  
Eric H. K. Fung ◽  
W. O. Wong ◽  
M. Zhu
Keyword(s):  
Mathematical Proof ◽  
Calculated Data ◽  
New Method ◽  
Motion Error ◽  
Error Components ◽  
Acquisition Device ◽  
Working Principle ◽  
Novel Method ◽  
Linear Slide ◽  
Input Error

A novel method based on Fourier series for the measurement of motion, yawing and rolling error is proposed in this study. In this method, a stationary stage with eight sensors, three of which are laid in the upper row and the rest are positioned in the lower row, is used as the data acquisition device. While the carriage of a lathe is sliding on the bed in one direction, the sensors capture the displacement data from the facing machine profile. Based on the existing “F5S” method, a new method is proposed to obtain the three major time-varying error components, which are the on-machine motion error, the yawing error and the rolling error, together with the shape functions of the machine profile. Mathematical proof and working principle are included in the paper. Verification of the method applicability is carried out by computer simulation. To evaluate the results of the method, the input data and calculated data are compared. It is shown that the new method is capable to separate all input error components with acceptable accuracy.

A new method for accelerated shelf-life prediction for frozen foods

2003 ◽  
Vol 83 (10) ◽  
pp. 1018-1021 ◽  
Author(s):  
DS Reid ◽  
K Kotte ◽  
P Kilmartin ◽  
M Young
Keyword(s):  
Shelf Life ◽  
Life Prediction ◽  
New Method ◽  
Frozen Foods ◽  
Shelf Life Prediction

A new method for fatigue life prediction based on the Thick Level Set approach

2017 ◽  
Vol 182 ◽  
pp. 449-466 ◽  
Author(s):  
L.O. Voormeeren ◽  
F.P. van der Meer ◽  
J. Maljaars ◽  
L.J. Sluys
Keyword(s):  
Fatigue Life ◽  
Level Set ◽  
Life Prediction ◽  
Fatigue Life Prediction ◽  
New Method ◽  
Level Set Approach

Design and Research of Environmentally Compound Deicing Techniques

2013 ◽  
Vol 734-737 ◽  
pp. 2746-2751
Author(s):  
Jian Zhao Zhou ◽  
Xiao Pan Xu ◽  
Wei Jun Chu ◽  
Ju Ying Dai ◽  
Yun He Chen ◽  
...  
Keyword(s):  
Traffic Flow ◽  
Mechanical Milling ◽  
Thermal Water ◽  
Environmentally Friendly ◽  
Water Jet ◽  
New Method ◽  
Accident Rate ◽  
Research Results ◽  
Water Jet Cutting ◽  
Working Principle

Determining how to strikingly and environmentally reduce the accident rate on roads in the snow weather, and ensure the traffic flow and safety in the icy district has become a tough issue nowadays. In the context, this article analyzed the series of current research results on different deicing techniques, and presents a new method which combines the thermal water-jet cutting with mechanical-milling deicing technique. It also introduces the structure and working principle of this device, together with the practicality design. The experiments indicate that this device can perform well in deicing work, environmentally friendly and satisfy to the requirements of design.

scholarly journals Camera-Based Method for Identification of the Layout of a Robotic Workcell

2020 ◽  
Vol 10 (21) ◽  
pp. 7679
Author(s):  
Daniel Huczala ◽  
Petr Oščádal ◽  
Tomáš Spurný ◽  
Aleš Vysocký ◽  
Michal Vocetka ◽  
...  
Keyword(s):  
Image Analysis ◽  
Jacobian Matrix ◽  
Low Cost ◽  
New Method ◽  
Mathematical Approach ◽  
Kinematic Parameters ◽  
Robotic Cell ◽  
End Effector ◽  
Cell Components ◽  
Working Principle

In this paper, a new method for the calibration of robotic cell components is presented and demonstrated by identification of an industrial robotic manipulator’s base and end-effector frames in a workplace. It is based on a mathematical approach using a Jacobian matrix. In addition, using the presented method, identification of other kinematic parameters of a robot is possible. The Universal Robot UR3 was later chosen to prove the working principle in both simulations and experiment, with a simple repeatable low-cost solution for such a task—image analysis to detect tag markers. The results showing the accuracy of the system are included and discussed.

A New Method of Stress Calculation in Spot Welded Joint and Its Application to Fatigue Life Prediction of Actual Vehicle

2003 ◽  
Author(s):  
Kazuhiro Seto ◽  
Eisuke Nakayama ◽  
Koichi Tsunoda ◽  
Nobuhiro Fujita ◽  
Yuichi Yoshida ◽  
...  
Keyword(s):  
Fatigue Life ◽  
Life Prediction ◽  
Welded Joint ◽  
Fatigue Life Prediction ◽  
New Method ◽  
Stress Calculation ◽  
Spot Welded
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