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PlayGround
Towards a SPACAR implementation with a gradual learning curve
Key ideas
provide a set of MATLAB functions for completely defining a model, running a simulation, and processing results
focus on easy syntax
do not expose the user to “unnecessary” features
goal: get second-year bachelor students to analyse 3-D static flexure mechanisms, within a day after first use
Important topics
Suggestion of workflow and syntax
Pre-processing step
Analysis step
Post-processing step
List of tasks/technical challenges
FORTRAN/C++
Spadraw
silent mode/automatic loadsbd call
data file to MATLAB structure
error/warning codes (to provide to MATLAB and link to the wiki)
* orde 0 convergence
* element length too small
* incorrect local y vector
* NaN in dat file
* filename length
* singular mass or stiffness matrix
A single static mode (instead of modes 7, 8, 9)
Spavisual that always visualizes the (possibly incomplete) model
Moments and angles without hinges