Where and When Snow Comes Off a Moving Train

The snowfall from a snow-laden (from a snowfall) train is somewhat predictable—and so can be somewhat controlled, suggests this study:

Studies of Snow-Dropping from a Train on a Turnout due to Dynamic Excitations,” Tiia-Riikka Loponen, Pekka Salmenperä, Heikki Luomala, and Antti Nurmikolu, Journal of Cold Regions Engineering, vol. 32, no. 2, June 2018. The authors, at Tampere University of Technology, Finland, report:

Snow accumulated on a train underframe may detach itself in places where rail discontinuity causes an excitation to the train. In turnout areas, this may cause serious problems when snow buildup from beneath the rolling stock drops into the gap between the switch blade and the stock rail and disrupts the turnout operation….

Based on the research results, it can be said that turnouts are a considerable cause of vibration in rolling stock. Should snow accumulate on the rolling stock and detach itself exactly due to excitation originating from a point of discontinuity of the rail, the snow is likely to drop at the location of a turnout. It was clearly observed in 2009–2010 that snow tends to drop from rolling stock in turnout areas; this means that, in adverse weather conditions, the acceleration levels created at turnout locations are sufficient to drop snow from rolling stock. The acceleration levels established by the measurements may therefore be used to develop methods to drop the snow, such as introducing intentional points of discontinuity in the rail to drop snow from the rolling stock.

(Thanks to Tom Gill for bringing this to our attention.)

362 Responses to “Where and When Snow Comes Off a Moving Train”

  1. Shelby Ginger Says:

    http://www.courant.com/sports/uconn-womens-basketball

  2. vse pozdravleniya Says:

    we came across a cool web-site that you might delight in. Take a appear in case you want

  3. chinese summer camp Says:

    Here is a good Weblog You may Discover Exciting that we Encourage You

  4. ben wa ball review Says:

    we prefer to honor several other world-wide-web web sites around the net, even when they arent linked to us, by linking to them. Underneath are some webpages really worth checking out

  5. lesbian vibrator Says:

    Here is a great Weblog You might Discover Intriguing that we Encourage You

  6. persian tombak Says:

    thank you13

  7. best rabbit vibrator Says:

    one of our guests not long ago suggested the following website

  8. سرور مجازی آلمان Says:

    thank you64

  9. سرور مجازی هلند Says:

    thank you7

  10. ایران ساز Says:

    goooood

  11. persian setar Says:

    thank you f

  12. lesbian sex toys Says:

    please take a look at the web pages we comply with, like this a single, because it represents our picks in the web