this was simple in previous comsol versions. i have very high aspect geometry in my model so it helps to view it (in 2D) with the axes not being equal. Our results demonstrate large spectral amplifications linked to resonance of high-relief mountain landforms, which is likely to be a widespread effect making such areas more prone to co-seismic rock damage and landslides. Hi, this seems to be a simple thing but i cant seem to figure it out. Under 'Scaling:' select 'Customize Aspect Ratio', and set to desired preference. Go to the graphics control panel tab (this will vary depending on what type of display adapter you're using) 5. Tracking of resonant frequencies over one year at the Matterhorn revealed no measurable seasonal variations related to near-surface environmental changes (e.g. Click on 'Advanced settings' on the right hand side of the screen. A short campaign measurement at another mountain of comparable shape but smaller scale showed similar modal properties with a higher fundamental frequency of 1.8 Hz and peak spectral ratios of 6. We identified high modal damping ratios of ∼20% for these modes, which we ascribe to radiative energy loss. We used ambient vibration modal analysis and numerical eigenfrequency modeling to identify the fundamental mode of the Matterhorn at 0.42 Hz, as well as evidence for a second, mutually-perpendicular mode at a similar frequency.
Results show elevated spectral power at mountain stations between 0.4 and 1 Hz, and directional site-to-reference spectral amplitude ratios up to 14, which we attribute in part to topographic resonance.
If the test results were not acceptable, the surface was edited in Avizo Fire using the flip edges, fix intersections, fix small dihedral angles, and fill holes tools. Here we present new ambient vibration data from seismic stations on the summit and ridge of one of the tallest freestanding mountains in the Swiss Alps – the Matterhorn – comparing these to a nearby local reference. Using the built-in Avizo Fire surface editor, built-in Avizo tests were completed for the intersection, closedness, orientation, aspect ratio, dihedral angle and holes in the surface. Alpine mountains represent extreme topography, therefore large amplification may be anticipated, however suitable data needed to probe the limits of topographic effects in these demanding locations are rare. Amplification of seismic energy in steep topography plays an important role controlling the location of earthquake-induced landslides. Turning performance is assessed by measurements of maneuverability and agility.
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