Search Results

You are looking at 1 - 10 of 27 items for :

  • methodology x
  • History of Engineering x
Clear All
Open access

Jadwiga Pisula and Mieczysław Płocica

. (2008), Machine-Tool Settings to Reduce the Sensitivity of Spiral Bevel Gears to Tooth Errors and Misalignments, ASME Journal of Mechanical Design, 130(8), 082603, 1-10. 11. Sinh Y. (2010), A novel ease-off flank modification methodology for spiral bevel and hypoid gears, Mechanism and Machine Theory 45, 1108-1124.

Open access

Łukasz Wójcik and Zbigniew Pater

REFERNCES 1. Altan T., Breitling J., Taupin E., Wu W-T. (1996), Material fracture and burr formation in blanking results of FEM simulations and comparison with experiments, Journal of Materials Processing Technology , 58, 68-78. 2. Altan T., Vazquez V., (2000), New Concepts in die design - physical and computer modeling applications, Journal of Materials Processing Technology , 98, 212-223. 3. Antolik Ł., (2014), Methodology of Fatigue Cracks Detection in Railway Axles in Comparison with European Standards Requirements (in Polish

Open access

Łukasz Bohdal, Katarzyna Tandecka and Paweł Kałduński

Abstract

Mechanical cutting allows separating of sheet material at low cost and therefore remains the most popular way to produce laminations for electrical machines and transformers. However, recent investigations revealed the deteriorating effect of cutting on the magnetic properties of the material close to the cut edge. The deformations generate elastic stresses in zones adjacent to the area of plastically deformed and strongly affect the magnetic properties. The knowledge about residual stresses is necessary in designing the process. This paper presents the new apprach of modeling residual stresses induced in shear slitting of grain oriented electrical steel using mesh-free method. The applications of SPH (Smoothed Particle Hydrodynamics) methodology to the simulation and analysis of 3D shear slitting process is presented. In experimental studies, an advanced vision-based technology based on digital image correlation (DIC) for monitoring the cutting process is used.

Open access

Piotr Mrozek, Ewa Mrozek and Andrzej Werner

Abstract

A Michelson interferometer based ESPI system for static and vibration out of plane displacement measurements is presented. The aim of the article is to demonstrate the usability of ESPI non-contact measurement method in the field of machining. The correlation fringe patterns were visualized using custom software. The accuracy of ESPI interferometer was verified by the comparison with measurement results collected using industrial XL-80 laser system. The efficacy in vibration analysis was tested by studying the mode shapes and resonant frequencies of the transverse vibrations of square plates. The measurement methodology was used to determine natural frequencies and the shapes of vibrational modes of NFTe 100x1.2/64-II circular slitting saw. As a result the values of rotational speed that should be avoided during machining were determined.

Open access

Andrzej Borawski

Abstract

The braking system is one of the most important systems in any vehicle. Its proper functioning may determine the health and life the people inside the vehicle as well as other road users. Therefore, it is important that the parameters which characterise the functioning of brakes changed as little as possible throughout their lifespan. Multiple instances of heating and cooling of the working components of the brake system as well as the environment they work in may impact their tribological properties. This article describes a method of evaluating the coefficient of friction and the wear speed of abrasive wear of friction working components of brakes. The methodology was developed on the basis of Taguchi’s method of process optimization.

Open access

Wiesław Barnat and Dariusz Sokołowski

Abstract

The paper presents the issue of a knife proof ballistic package. This issue was emphasized since most of modern vests are designed to match the threat posed to them only by firearms. There was observed negligence of protection against melee attacks. There is, thus, a need to develop a research methodology in this matter, because it is a valid and necessary problem in a modern developed society. The aim of this study was to perform a numerical model which simulated the phenomenon of penetration of a ballistic package by an engineering blade. Specification of an engineering blade was taken from standard NIJ Standard-0115.00. Commercial software LSDYNA was used to carry out the analysis.

Open access

Magdalena Bucior, Lidia Gałda, Feliks Stachowicz and Władysław Zielecki

REFERENCES 1. Jebahi M., Gakwaya A., Leveskue J., Mechri O., Ba K. (2016), Robust methodology to simulate real shot peening process using discrete-continuum coupling method, International Journal of Mechanical Sciences , 107, 21-33. 2. Korzyński M. (2013), Experiment methodology , WNT, Warszawa (in Polish). 3. Korzynski M., Dzierwa A., Pacana A., Cwanek J. (2009), Fatigue strenght of chromium coated elements and possibility of its improvement with ball peening, Surface & Coatings Technology , 204, 615-620. 4. Korzynski M., Zarski

Open access

Dmytro Fedorynenko, Serhii Sapon and Sergiy Boyko

principles, calculation and design of hydraulic plans (in German), Springer-Verlag Berlin Heidelberg . 7. Rubinstein R.Y. (2007), Simulation and the Monte Carlo Method, Kroese – 2nd edition, Wiley. 8. Sapon S.P. (2013), Methodology of experimental determination precisionspindle, Bulletin of Chernihiv State Technological University, A series of technical sciences , 1(63), 66-74. 9. Savin L.A. (2006), Simulation of rotor systems with fluid friction bearings , Moscow: Engineering. 10. Shen C.G., Wang G.C., Wang S.L. (2010), Computation and

Open access

Adam Brodecki, Tadeusz Szymczak and Zbigniew Kowalewski

. Bornert M., Brémand F., Doumalin P., Dupré J.-C., Fazzini M., Grédiac M., Hild F., Mistou S., Molimard J., Orteu J.-J., Robert L., Surrel Y., Vacher P., Wattrisse B., (2009), Assessment of Digital Image Correlation Measurement Errors: Methodology and Results, Experimental Mechanics , 49, 353–370. 4. Brinkmann Ch., Haberland J., Böttinger S., Erne O., Sanow G., (2007), Optical 3D Measuring System for Investigating Tyre Deformations, Tractor Technology , 62(5), 326–327. 5. Chu T.C., Ranson W.F., Sutton M.A., Peters W.H., (1985), Applications of digital

Open access

Wojciech Walendziuk

REFERENCES 1. Baratto M., Cervera Ch., Jacono M. (2004), Analysis of Adequacy of a Force Platform for Stabilometric Clinical Investigations, Mediterranean Conference on Measurement , 207-211. 2. Cornilleau-Peresa V., Shabanac N., Droulezd J., Gohe J.C.H., Leef G.S.M., Chew P.T.K. (2005), Measurement of the Visual Contribution to postural steadiness from the COP Movement: Methodology And Reliability, Gait & Posture , Vol. 22, 2, 96-106. 3. Derlatka M. (2012), Human Gait Recognition Based on Signals from Two Force Plates, Lecture Notes in Computer