Description Usage Arguments Details Value Note Author(s) References Examples

Describes the motion of a simple wheelset on a rail track.

It is a differential algebraic equation of index 2, 17 equations.

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`yini ` |
the initial (state) values for the DE system. If |

`dyini ` |
the initial derivatives of the state variables of the DE system. |

`times ` |
time sequence for which output is wanted; the first
value of |

`parms ` |
list of parameters that overrule the default parameter values |

`method ` |
the solver to use |

`maxsteps ` |
maximal number of steps per output interval taken by the solver |

`atol ` |
absolute error tolerance, either a scalar or a vector, one value for each y. |

`rtol ` |
relative error tolerance, either a scalar or a vector, one value for each y, |

`printmescd ` |
if TRUE the mixed error significant digits computed using the reference solution at time 0.1 are printed |

`... ` |
additional arguments passed to the solver . |

The default parameters are: MR = 16.08, G = 9.81, V = 30., RN0 = 0.1, LI1 = 0.0605, LI2 = 0.366, MA = 0.0, HA = 0.2, MU = 0.12 , XL = 0.19, CX = 6400., CZ = 6400. , E = 1.3537956, GG = 0.7115218, SIGMA = 0.28, GM = 7.92e10, C11 = 4.72772197, C22 = 4.27526987, C23 = 1.97203505, DELTA0 = 0.0262, AR = 0.1506, RS = 0.06, EPS = 0.00001, B1 = 0.0, B2 = 4.0

A matrix of class `deSolve`

with up to as many rows as elements in
`times`

and as many
columns as elements in `yini`

, plus an additional column (the first)
for the time value.

There will be one row for each element in `times`

unless the
solver returns with an unrecoverable error. If
`yini`

has a names attribute, it will be used to label the columns
of the output value.

This model is implemented in R.

Karline Soetaert <[email protected]>

Francesca Mazzia

http://www.dm.uniba.it/~testset

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deTestSet documentation built on May 29, 2017, 2:56 p.m.

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