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Showing results for tags 'control'.
Found 5 results
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Hello, I was once told by a colleague before running an optimisation with optistruct to use the control parameters '-ncpu 8 -core IN'. This was to make the simulation run faster. To my understanding '-ncpu 8' ensures the simulation utilises the computers 8 cores. However, I do not know what the '-core IN' does. Can anyone offer any insight into the meaning behind this and if it actually helps with the simulation speed. Additionally, if there are any other optistruct option inputs that could be used to speed up the simulation then please let me know what they are. Thank you in advance.
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DSHplus can be used excellently as a learning tool for the diciplines like hydraulics, pneumatics, mechanics or control. A tutorial for a quick introduction to the program is included. Formulas and basic knowledge can be viewed in the libraries. Practical exercises on prepared examples can be used to develop an better understanding of fluid power. DSHplus is ideal for efficient preparation for examinations or master theses. -
Any simulation carried out using AFDEX will consist of 5 different files, a simulation addressing file, two input files, and two output files. Files for addressing a simulation: The SimuLation addressing File(.SLF) contains information about the data files needed for carrying out an analysis. Format: .a2dslf and .a3dslf for a 2d and 3d simulation respectively Example: example1.a2dslf Input Files: The Simulation Control File (.SCF) contains the information needed for simulation control and is subject to change during execution. Format: .a2dscf and .a3dscf for a 2d and 3d simulation respectively Example: example1.a2dscf The Simulation Input File (.SIF) is about the workpiece, die geometry and relevant process information like friction, die velocity etc. In most cases, the user will be not be required to edit anything in this file as all the requirements will be satisfied in the GUI. Format: .a2dsif and .a3dsif for a 2d and 3d simulation respectively Example: example1.a2dsif Output Files: The Simulation Result File (.SRF) saves the input data, FE Solutions, and the process conditions. This file cannot be read by the user directly and can be accessed through the post-processor. Format: .a2dsrf and .a3dsrf for a 2d and 3d simulation respectively Example: example1.a2dsrf The Simulation Print File (.SPF) records the simulation history or the total procedure. The error information is also recorded. Format: .a2dspf and .a3dspf for a 2d and 3d simulation respectively Example: example1.a2dspf Note that a .PRJ file is generated by the preprocessor and functionally it is similar to the SLF. Working on the feedback from users over the time, AFDEX GUI has and is being improved continually to minimize the user intervention as much as possible and make the simulation procedure simple. The file types discussed above will come into play only when advanced forging processes are simulated. For the majority of applications, the user can simulate directly using the GUI. Let us know what you think and feel free to ask questions if you have any. Cheers from AFDEX Support Team!
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Submitted by yue on Fri, 08/01/2014 - 08:40 I have acquired the TI DRV8301 kit from Texas Instrument. The INSTASPIN seems to be close sourced in how it estimates flux, angle speed and torque, therefore I'm thinking of using Vsim instead for implementing the control. My question is that is it possible to use Vsim to implement the following control schemes on a brushless dc motor with trapezoidal shaped back emf: six step commutation which injects 120 degrees square wave current vector control (similar to that employed for permanent magnet synchronous motor) If so, and if it's true that VisSim supports drv8301 kit, where can I find the relevant application note/ source code/ example for this? Thanks in advance. Yue Yao -
Is it possible to calculate the Stiffness (N/m or N/mm) of the structure from any analysis??
