I'm trying to run a transient structural analysis on a wind turbine blade model consisting of roughly 30,000 nodes. There are 3 load steps, with the blade initially fixed at the root, then a 1000N load acting on a single keypoint on the surface of the blade near the root lasting 0.001s, then no load once again but fixed end. I'm using stepped loading and small displacement.

I want to have the last load step go up to 1 second and have many substeps to allow for viewing an accurate time-history plot of acceleration (showing oscillations) of the end of the blade.

When I try to run the analysis however, even with only 1 substep for LS1 & LS2, and 30 substeps of time increment 0.001s in LS3 I get the following error message: "Intel(r) visual fortran runtime error". When I close this window the output window then displays "forrt1: There is not enough space on the disk" and the program crashes. 

I am using a university computer to run analysis and as such storage is limited, if I had more storage do you think that alone would resolve the issue? Since adding more storage is not really an option, are there ways I could optimise my analysis to run smoothly, without resizing my mesh? All I need is to be able to observe the time history plot of diplacement/acceleration of my structure when subject to an impulse load.

Any advice would be greatly appreciated!