Browsing Mechanical Engineering by Issue Date
Now showing items 21-40 of 206
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Alternative methods for the solution of hyperelastic problems with incompressibility
(Science Direct, 2003-02)A new approach for analysing incompressible hyperelastic and rubber-like material behaviour is discussed. The approach is based on extending the linear analysis bubble function concept into nonlinear analysis. To eliminate ... -
Guide roll simulation in FE analysis of ring rolling
(Science Direct, 2003-05)A new method (thermal spokes) has been proposed to simulate the guide roll effect in FE analysis of the ring rolling process. The method is simple to use with existing FE formulations, does not introduce further nonlinearities, ... -
Three-dimensional FE analysis of ring rolling by employing thermal spokes method
(Science Direct, 2004-03)This paper investigates the performance of the “Thermal Spokes Method” in modeling the effect of the guide rolls on the ring rolling process. If the guide rolls are not included FE, simulation encounters problems such as ... -
A complete finite element treatment for the fully coupled implicit ALE formulation
(Springer Link, 2004-04)This paper presents a complete derivation and implementation of the Arbitrary Lagrangian Eulerian (ALE) formulation for the simulation of large deformation quasi-static and dynamic problems. While most of the previous work ... -
Validity of bolt‐removal and gap‐insertion techniques to experimentally simulate the vibration of a cracked rotor
(Wiley Online Library, 2004-05)Experimental studies of the vibration of a cracked rotor are essential in the development of vibration monitoring techniques. The greatest difficulty in conducting experimental parameter studies is the extensive amount of ... -
Recent trends in ALE formulation and its applications in solid mechanics
(Science Direct, 2004-06)This paper presents a complete derivation and implementation of the arbitrary Lagrangian Eulerian (ALE) formulation for the simulation of nonlinear static and dynamic problems in solid mechanics. The ALE equations are ... -
Suitability of Project-Based Learning (PBL) in Mechanical Design Education
(In Proceeding of the WSEAS International Conference, 2005)This paper discusses the suitability of Project-Based learning (PBL) in mechanical design education. We first introduce project-based learning and highlight its main differences with problem-based learning. We discuss the ... -
Fatigue life investigation of solid and hollow rollers in pure rolling contact
(ASME, 2005-11)Two solid and hollow cylindrical rollers in pure rolling contact have been modeled. The two rollers are subjected to a combined normal and tangential loading. The Stress distribution in the contact zone has been determined ... -
Suitability of Project-Based Learning (PBL) in Mechanical Design Education
(International Conference on Engineering Education, 2006)This paper discusses the suitability of Project-Based learning (PBL) in mechanical design education. We first introduce project-based learning and highlight its main differences with problem-based learning. We discuss the ... -
Optimization of fatigue life of hollow rollers under pure normal loading
(ASME Digital Collection, 2006)Fatigue life investigations have been made for hollow rollers in pure normal loading. Different hollowness percentages between 20% and 80% have been tested to find the optimum percentage hollowness that gives the longest ... -
Fatigue life prediction of optimum hollowness of hollow cylindrical rollers in pure rolling contact
(ASME Digital Collection, 2006-01)Fatigue life investigations have been made for cylindrical hollow rollers in pure rolling contact. In addition to normal loading, the rollers have been subjected to tangential loading of 1/3rd the normal load value. ... -
Heat transfer behavior in the impingement zone under circular water jet
(Science Direct, 2006-06)In this study an iterative and sequential inverse heat transfer analysis procedure is developed and implemented into a two-dimensional finite element program. The developed program is used to determine the heat fluxes at ... -
Flux Marching Method for Two-Dimensional Inverse Heat Conduction Problems in the Water Impingement Cooling
(2006-08)Numerous experimental and numerical investigations have been done to uncover the essence of the complex cooling process using circular water jet or planar curtain water jet in steel industry. In this study, the cooling ... -
Optimal tuning of PID controllers for FOPTD, SOPTD and SOPTD with lead processes
(Elsevier, 2006-12)This paper presents the synthesis and analysis of optimal tuning of proportional integral derivative (PID) parameters for different process systems: first order plus time delay (FOPTD), second order plus time delay (SOPTD) ... -
Coupled finite element modeling of piezothermoelastic materials
(International Society for Optics and Photonics,, 2007)The governing equations of piezo-thermoelastic materials show full coupling between mechanical, electric, and temperature fields. It is often assumed in the literature that in high-frequency oscillations, the coupling ... -
On the Application of Intrinsic Thermocouples in Temperature Measurements in Water Jet Cooling
(Taylor and Francis Online, 2007-02)The reliability of intrinsic thermocouples in temperature measurements in the water jet cooling process of hot steel plates is investigated using the finite-element method. It is found that the isothermal condition does ... -
Investigation of Error Sources in Temperature Measurement Using Thermocouples in Water Impingement Cooling
(Taylor & Francis, 2007-02)The reliability of thermocouples with separation measuring junction in temperature measurement in the cooling process of hot steel plates with impingement jet has been investigated using direct and inverse finite element ... -
Investigation of error sources in temperature measurement using thermocouples in water impingement cooling
(Taylor and Francis, 2007-02)The reliability of thermocouples with separation measuring junction in temperature measurement in the cooling process of hot steel plates with impingement jet has been investigated using direct and inverse finite element ... -
Dynamic thermo-electro-mechanical performance of piezoelectric stack actuators
(Society of Photo-Optical Instrumentation Engineers, 2007-04)Piezoelectric actuators are increasingly used in modern fuel injectors due to their quick response, high efficiency, and excellent repeatability. Current understanding of the thermo-electro-mechanical performance of ... -
Simulation of chip formation in orthogonal metal cutting process: an ALE finite element approach
(Taylor and Francis Online, 2007-04)Lagrangian and Eulerian finite element formulations have been traditionally used for modeling of the orthogonal metal cutting process. In this paper it is shown that a more general formulation, the arbitrary Lagrangian-Eulerian ...