Category Archives: Tips & Tricks

Programming as a Geotechnical Engineer

Oasys developers have recently released the COM interface into Frew, Alp and Greta and are planning to roll it out to our other Geotechnical programs. Following our recent COM webinar, Application Specialist, Zeena Farook, started some scripting to see what … Continue reading

Posted in Geotechnical Software, programming, Tips & Tricks

Exploring the Design Space

Exploring the Design Space For the last few years I have been giving a lecture at Leeds University on design optimisation techniques, but the one thing that always bothered me was a sketch that I did of an example design … Continue reading

Posted in General, GSA, programming, Structural Software, Tips & Tricks

Evolutionary Topology Optimisation with GSA

Inspired by a recent Arup Thoughts article about a radical minimum weight joint, and making use of some online references (Huang and Xie, 2010), I have developed a Python routine for running an Evolutionary Topology Optimisation (ETO) on a GSA … Continue reading

Posted in GSA, programming, Structural Software, Tips & Tricks

Using Python scripts with MassMotion – Creating a timetable schedule from an OD matrix

Introduction MassMotion’s timetables are incredibly powerful, but can be time-consuming to pull together by hand. On the other hand, simple programs can do much of the donkey work, converting files such as Origin/Destination Matrices (OD Matrices) or train schedules into … Continue reading

Posted in Crowd Simulation, MassMotion, programming, Tips & Tricks

Form-finding asymmetric bridges

I am often asked about form finding tension structures but the other day I was asked how to do one that I have not done before: an asymmetric bridge. Form-finding is a method that determines the geometrically optimal structure to … Continue reading

Posted in GSA, Structural Software, Tips & Tricks

Using GSA User Modules

GSA’s User Modules are a way of making permanent copies of results but also to import results from outside the program. You can create them within GSA from existing results by setting up results contours in the graphical display and … Continue reading

Posted in General, GSA, Structural Software, Tips & Tricks Tagged ,

Using harmonic analysis to simulate ground excitation

To know the dynamic responses due to ground motions, time history analysis is normally used in GSA.   However, if the ground motions are sinusoidal and a range of frequencies need to be considered, using time history analysis to evaluate … Continue reading

Posted in GSA, Structural Software, Tips & Tricks

MassMotion 5.0 tutorials

Here are a number of MassMotion tutorial videos and their relevant model files for you to practice with. Actions An introduction to Actions And how to create them. Note that this video was produced at beta stage when Actions were … Continue reading

Posted in Crowd Simulation, MassMotion, Tips & Tricks

Modelling Lifts

As there are no lift/elevator actors currently in MassMotion, you need to simulate them using Paths. To create a Path, right-click on one of the lift floors and select the menu item. You will probably then need to edit its … Continue reading

Posted in Crowd Simulation, General, MassMotion, Tips & Tricks

The BlackBerry* Effect

I have been asked a number of times when it will be that we can model the effects of agents receiving text messages, needing to tie their shoe laces, just stopping randomly at the top of stairs, or generally getting … Continue reading

Posted in Crowd Simulation, MassMotion, Tips & Tricks