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RISCoarsening in BGA Solder Balls: Modeling and Experimental Evaluation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The reliability of solder joints in electronic packaging is becoming more important as the ball grid array (BGA) develops rapidly into the most popular packaging technology. Thermal fatigue of ...
Numerical and Experimental Studies on Nonlinear Dynamic Behaviors of a Rotor-Fluid Film Bearing System With Squeeze Film Dampers
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this paper, the nonlinear oil film forces of bearings and dampers with free boundary conditions are determined by the finite element method (FEM) and the complementary solution for variational ...
Linear and Nonlinear PSE for Stability Analysis of the Blasius Boundary Layer Using Compact Scheme
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A highly accurate finite-difference PSE code has been developed to investigate the stability analysis of incompressible boundary layers over a flat plate. The PSE equations are derived in terms ...
Thermomechanical Stress Analysis of Multi-Layered Electronic Packaging
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: An accurate estimate of thermal stresses in multilayered microelectronics structures along the bonded interfaces is crucial for design and prediction of delamination-related failures. Compared with ...
Geometric Simulation of Ball-End Milling Operations
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this paper, B-rep solid modeling techniques are used to deal with geometric modeling issues encountered in ball-end milling simulation. The precise B-rep model of the cutter swept volume is ...
A Robust Tracking Controller Design With Hierarchical Perturbation Compensation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A robust tracking controller for mechanical systems is proposed by combining the robust perturbation compensator which effectively attenuates the perturbation to the plant with the nominal tracking ...
On the Improvement of Calibration Coefficients for Hole-Drilling Integral Method: Part II—Experimental Validation of Calibration Coefficients
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Experimental validation of the calibration coefficients for integral hole-drilling method obtained from an improved three-dimensional FEM model was achieved using bending test of a cantilever beam. ...
On the Improvement of Calibration Coefficients for Hole-Drilling Integral Method: Part I—Analysis of Calibration Coefficients Obtained by a 3-D FEM Model
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: One of the important factors affecting the accuracy of stress values obtained from the hole-drilling method is the calibration coefficient. A three-dimensional model was established to determine ...
Homogeneous, Isotropic Flow in Grid Generated Turbulence
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Detailed grid generated turbulent analysis has been completed using a three-dimensional hot-wire anemometer and traversing mechanism to identify a homogeneous, isotropic flow region downstream of ...
Multi-Mode Driving Control of a Parallel Hybrid Electric Vehicle Using Driving Pattern Recognition
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Vehicle performance such as fuel consumption and catalyst-out emissions is affected by a driving pattern, which is defined as a driving cycle with grades in this study. To optimize the vehicle ...