looking for heat engine simulation software
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Hi!
I am wondering if anyone here knows of a generic heat engine simulator. I.e. something that can simulate the behavior of reciprocating engines, Stirling engines, and so forth.
The outputs I'm interested in include things like power and efficiency. The input variables that I would play around with include engine dimensions and material properties.
how to start a research
hi all,
I am a mechanical engineer currently pursuing Master degree (Post graduation). Ultimately i also want to pursue a research leading to PhD after my master's. Its my burning desire to do some significant research in the field of Fatigue analysis using Fracture mechanics approach preferably for aerospace domain using advanced CAE softwares like Nasgrow, Afgrow, Abaqus, FE-safe, MSC Fatigue, etc,..
Euler-Bernoulli beam equation, implicit scheme
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Hi,
I am trying to simulate the motion of an Euler-Bernoulli beam (clamped-free) using finite differences. Using the explicite scheme works, but the time step condition is a bit too restrictive for my case (I need real-time computations at 44kHz sampling frequency)
Hence, I try to use an implicite schemes. The problem is then that the oscillation of the beam is damped (no damping terms are included in my motion equation for now) and seems to contain just the first mode of vibration.
International Journal of Applied Mechanics (IJAM) Vol.1 No.4
Forthcoming papers of International Journal of Applied Mechanics (IJAM) Vol.1 No.4
1. “Strain Deconcentration In Thin Films Patterned With Circular Holes”, Matthew B. Tucker and Teng Li, (University of Maryland, USA).
2. “Thermal-Elastic Behaviors Of Staggered Composites”, Fan Yang , Dai-Ning Fang and Bin Liu (Tsinghua University, China).
Compositional patterning in coherent and dislocated alloy nanocrystals
Variations in the distribution of the alloy components can significantly influence the electronic properties
of self-organized alloy nanocrystals. Using a combination of finite element and quadratic programming
optimization methods, we have developed an efficient numerical technique to compute the equilibrium
composition profiles in coherent and dislocated nanocrystals. We show that the variations in composition
profiles arise due to the competition between chemical mixing effects and the relaxation of composition-
dependent mismatch strain as well as strain due to dislocations. We find that the composition profiles
Comparison of intrapore velocities measured and simulated in the highly macro-porous biscayne aquifer
Using the data from 3D hybrid lattice boltzmann code under parallel environments, some interesting simulated results are obtained by using Tecplot.
Tips:
After download the attached files, please change files name from *.ppt to *.wmv, then they can be display normally by media player
Water diffusion and fracture behavior in nano-porous low-k dielectric film stacks
Among various low-dielectric constant low-k materials under development, organosilicate glasses
OSGs containing nanometer-size pores are leading candidates for use as intrametal dielectrics in
future microelectronics technologies. In this paper, we investigate the direct impact of water
diffusion on the fracture behavior of film stacks that contain porous OSG coatings. We demonstrate
that exposure of the film stacks to water causes significant degradation of the interfacial adhesion
Symmetry breaking, snap-through, and pull-in instabilities under dynamic loading of microelectromechanical shallow arches
Arch-shaped microelectromechanical systems (MEMS) have been used as mechanical memories, micro-relays, micro-valves, optical switches, and digital micro-mirrors. A bi-stable structure, such as an arch, is characterized by a multivalued load deflection curve. Here we study the symmetry breaking, the snap-through instability, and the pull-in instability of a bi-stable arch shaped MEMS under static and dynamic electric loads.<!--break--> Unlike a mechanical load, the electric load is a nonlinear function of the a priori unknown deformed shape of the arch.