Best of the Best,in the Best.What you posses is your property.Concrete Shell is my Study.

Tuesday, December 16, 2008

Itinerary to go to Oita from Toyohashi

During the new year day i wanna go back to Oita.
Oita is a prefecture in Kyushu island and it is
my second home town.
i live in Toyohashi four years the same to my inhabitant period
in Oita but i feel Oita is mostly my home town.

and in this new year occasion i would be happy to go back to Oita.
but it take much from Toyohashi to Oita.
here is some itinnery.

1.Shinkansen
By using Nozomi from Toyohasi-Hakata and
Sonic from Hakata-Oita.
we have to spend 26000YEN + 6000YEN = 32000YEN.

2.Night Bus
Night bus is also good itinerary.
Using bus , we need to use local train from Toyohasi-Nagoya
and long distance bus from Nagoya-Oita.
we have to spend 19800YEN + 2160YEN = 21960YEN.

3.Seishun 18 Kippu
one ticket cost 11500YEN and we can use 5 times(5 days).

anyways m still consider weather i will go to Oita or not.

rachana.co.nr

Junior Presentation day

Today is the presentation day of two juniors of my lab.
it is started at 9:00AM , so i have to get up early.
but i am still at lab right now.

actually we have had a presentation practice hours ago.
frankly it took much time( from dinner time till now)
so the plan that i have to go to bed before mid night is absolutely
impossible for tonight.

hope i can wake up on time .

Sunday, December 14, 2008

Bad Habbit

Recently just some thing goes wrong.
i am awake at night. Just like the night creature.
actually the bed time just changed.
it changed from night time to day time.
it is really bad cos day time i have to be in lab.

maybe i have to try to sleep well before mid night,
so that the bed time would change to normal again.

Thursday, December 11, 2008

CalCuliX - Free static and dynamic elasto-plastic analysis tools

these quote.
CalculiX is a package designed to solve field problems. The method used is the finite element method.

With CalculiX Finite Element Models can be build, calculated and post-processed. The pre- and post-processor is an interactive 3D-tool using the openGL API. The solver is able to do linear and non-linear calculations. Static, dynamic and thermal solutions are available. Both programs can be used independently. Because the solver makes use of the abaqus input format it is possible to use commercial pre-processors as well. In turn the pre-processor is able to write mesh related data for nastran, abaqus, ansys, code-aster and for the free-cfd codes duns, ISAAC and OpenFOAM. A vda CAD interface is available. The program is designed to run on Unix platforms like Linux and Irix computers but also on MS-Windows.

The CalculiX package was developed by a team of enthusiasts in their raw spare time. They are employees of MTU Munich, an Aero Engine manufacturer in Germany which granted the publication.

For a quick overview of the capabilities of CalculiX the results of an investigation of a turbo-charger are presented. The model was build from scratch with CalculiX and the compressor model together with an example input deck can be found in the distribution. The calculations were done to determine the burst-speed and the highest allowable rotational speed concerning low cycle fatigue. In addition the eigenfrequencies were calculated to determine possible resonances with the vanes. The following picture shows the rotor with the bearing housing and some vanes. The models are meshed with 20 noded brick elements with reduced integration. The right and left side of the disks are connected with each other by equations to simulate cyclic boundary conditions. Since version 0.92 cyclic symmetry frequency calculations are possible to calculate eigenvalues and mode-shapes for certain nodal diameters of a rotational symmetric volume based only on a segment. The compressor is made of casted aluminum alloy (AlSi - C355) and the turbine of a high temperature alloy (Inco 713C) and both are loaded by pure centrifugal force.

rotor

  • Types of analysis

    • static
      • linear
      • nonlinear
        • geometric nonlinearities
        • material nonlinearities
    • frequency (linear)
    • dynamic
      • linear
        • transient modal dynamics
        • steady state dynamics
          • harmonic periodic loading
          • non-harmonic periodic loading
      • nonlinear
        • implicit
        • explicit
    • buckling
    • heat transfer
      • steady state
      • transient
    • coupled thermomechanical analysis
      • steady state
      • transient
    • steady-state networks
      • aerodynamic networks
      • hydraulic pipe systems
    • Laplace and Helmholtz problems by analogy
      • Electrostatics
      • Seepage flow
      • Inviscid incompressible irrotional flow
      • Lubrication
      • Linear acoustics
      • Shallow water waves
      • Diffusion mass transfer in a stationary medium

  • Materials

    • linear elastic (isotropic, orthotropic or fully anisotropic)
    • isotropic hyperelastic (compressible as well as nearly incompressible)
    • deformation plasticity (Ramberg-Osgood)
    • large deformation incremental isotropic (visco)plasticity with isotropic and kinematic hardening
    • large deformation creep for isotropic materials
    • fiber reinforced anisotropic hyperelastic materials (e.g. arteries)
    • small deformation isotropic viscoplastic theory for elastically anisotropic materials
    • small deformation anisotropic viscoplastic theory for single crystals
    • user defined material

  • Elements

    • 8-node brick element (full or reduced integration)
    • 20-node brick element (full or reduced integration)
    • 20-node incompressible element
    • 4-node tetrahedral element
    • 10-node tetrahedral element
    • 6-node wedge element
    • 15-node wedge element
    • 6-node plane strain element
    • 6-node plane stress element
    • 6-node axisymmetric element
    • 6-node shell element
    • 8-node plane strain element (full or reduced integration)
    • 8-node plane stress element (full or reduced integration)
    • 8-node axisymmetric element (full or reduced integration)
    • 8-node shell element (full or reduced integration)
    • 3-node beam element (full or reduced integration)
    • 3-node fluid element (for forced convection)
    • 4-node, 5-node, 7-node and 9-node contact spring elements
    • 2-node gap element
    • 2-node linear and nonlinear springs
    • 2-node linear dashpots
    • composite constructs consisting of beam and shell elements

  • Loading

    • concentrated forces
    • distributed pressure
    • centrifugal loading
    • gravity loading with know gravity vector
    • generalized gravity loading
    • temperature loading
    • residual stress
    • concentrated flux
    • distributed flux
    • prescribed convection conditions and forced convection
    • prescribed radiation conditions and cavity radiation

  • Boundary conditions

    • single point constraints
    • linear multiple point constraints
    • cyclic symmetry conditions
    • contact (small and large sliding)

  • Kinematic behavior

    • Rigid body motion
    • Nodes on a straight line defined by movable nodes
    • Nodes in a plane defined by movable nodes
    • Application of a mean rotation to a set of nodes
    • Maximum distance MPC
    • Pre-tension

  • Coordinate systems

    • global Cartesian system
    • local Cartesian system
    • local cylindrical system

  • Linear equation solvers

    • profile solver
    • interface for the direct sparse matrix solver SPOOLES
    • interface for the direct sparse matrix solver TAUCS
    • interface for the direct sparse matrix solver of the SGI scientific library
    • iterative solver (with diagonal scaling or Cholesky preconditioning)

  • Output options

    • Displacements
    • Stress
    • Section forces for beams
    • Strain
    • Forces (including sum over sets)
    • Temperature
    • Equivalent plastic strain
    • Energy density (including sum over sets)
    • Internal variables
    • Heat flux
    • Heat sources
    • Volume (including sum over sets)
    • Total pressure (for networks)
    • Mass flow (for networks)


  • go to download

    Wednesday, December 10, 2008

    Airport i ever used

    Here are the airport i ever used.

  • Phnom Penh International airport
  • this is the first port i used to go abroad.
    it was in 2001. and from then i used it one in two years.

  • Bangkok International airport
  • i used it one in 2001 to transit from Cambodia to Japan.

  • Tokyo Nari ta International airport
  • it is the port i first reached Japan.
    and recently i used it to transit from Canada to Nagoya

  • Tokyo Haneda airport
  • i used it in 2002 for Fukuoka.

  • Fukuoka International airport
  • i used it when i come to from Haneda to Oita in 2002 and then i used one more time two year later.

  • Nagoya International airport
  • i used it one from Taiwan while i return back from home.

  • Kansai International airport
  • i used when i go to Australia.

  • Chubu International airport
  • i used it many times. when i go back home and recently when i go to Mexico.

  • Saigon International airport
  • i used to transit when i go to Cambodia and Australia.

  • Taipei International airport
  • i used it when i go to Cambodia.

  • Kualalumpur International airport
  • i used it when i go to Cambodia.

  • Sovannaphumi International airport
  • i used when i go to Bangkok.

  • Melbourne International airport
  • i used it when i go to Australia.

  • Vancouver International airport
  • i used it when i go to Mexico.

  • Mexico City International airport
  • i used it when i go to Mexico.

  • Acapulco International airport
  • i used it when i go to Acapulco.


    That is all the airport i used.
    now in Japan i used nearly all the big international airport.
    (Narita Chuubu kansai Fukuoka).
    the one i haven't used is Kitakyuushuu international airport.
    it is the new one has just open about 3 or 4 years ago.
    i'll use it one so that i will have all that airport stamp on my passport.