Skip to main content Accessibility help
×
Hostname: page-component-77c89778f8-9q27g Total loading time: 0 Render date: 2024-07-22T17:12:44.504Z Has data issue: false hasContentIssue false

22 - Dynamics of Snowboating

Published online by Cambridge University Press:  08 February 2010

K. Chen
Affiliation:
University of Liverpool
Peter J. Giblin
Affiliation:
University of Liverpool
A. Irving
Affiliation:
University of Liverpool
Get access

Summary

Aims of the project

You are given a mathematical description of a winter sports area and invited to help design a run for the new winter sport of ‘snowboating’ – sliding down mountainsides in a rubber boat, more or less out of control. You will have to obtain reasonable model parameters to define safe operating conditions.

Mathematical ideas used

You are given a fairly realistic dynamical model based on Newton's laws. The equations of motion are coupled differential equations.

MATLAB techniques used

You can solve the differential equations using the numerical methods and MATLAB programmes of (Chapter 7). For convenience, there follows a list of relevant M-files, both standard ones and special ones provided for this particular project. You will have to modify some of these in the course of your study. In each case typing help gives information on the purpose and usage.

topog – 3D and contour plots of slopes

snows 1 – definition of the topographical surface

snowboat – solves the equations of motion for the snowboat

snbtfn – derivative function for the above

fsnow0 – surface function f (scalar args.)

fsnowl – fx and fy

fsnow2 – fxx, fxy and fyy

snowmn – minimisation function for the surface

snowmx – maximisation function for the surface

Preliminary look at the problem

Use the command topog to show a mesh plot followed by a contour plot of the snow hills where the action will take place. It is defined by

where f is some smooth function which can be examined in either snows1.m or fsnow0.m.

Type
Chapter
Information
Publisher: Cambridge University Press
Print publication year: 1999

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Save book to Kindle

To save this book to your Kindle, first ensure coreplatform@cambridge.org is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about saving to your Kindle.

Note you can select to save to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be saved to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.

Find out more about the Kindle Personal Document Service.

  • Dynamics of Snowboating
  • K. Chen, University of Liverpool, Peter J. Giblin, University of Liverpool, A. Irving, University of Liverpool
  • Book: Mathematical Explorations with MATLAB
  • Online publication: 08 February 2010
  • Chapter DOI: https://doi.org/10.1017/CBO9780511624117.023
Available formats
×

Save book to Dropbox

To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Dropbox.

  • Dynamics of Snowboating
  • K. Chen, University of Liverpool, Peter J. Giblin, University of Liverpool, A. Irving, University of Liverpool
  • Book: Mathematical Explorations with MATLAB
  • Online publication: 08 February 2010
  • Chapter DOI: https://doi.org/10.1017/CBO9780511624117.023
Available formats
×

Save book to Google Drive

To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Google Drive.

  • Dynamics of Snowboating
  • K. Chen, University of Liverpool, Peter J. Giblin, University of Liverpool, A. Irving, University of Liverpool
  • Book: Mathematical Explorations with MATLAB
  • Online publication: 08 February 2010
  • Chapter DOI: https://doi.org/10.1017/CBO9780511624117.023
Available formats
×