Introduction

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Patran has three kinds of fields: Spatial, Temperature-dependent and Time-dependent. MSC Sinda for Patran supports all kinds of spatial fields, tabular input temperature, or time-dependent fields.

There are two objects used to create temperature-dependent field or time-dependent field: Material Property and Non Spatial. The Materials and Convection Correlation Lab only support those fields created under the “Material Property” object. Properties only support those fields created under “Non Spatial” object. Loads support all of these fields.

There are four methods used to create spatial field: PCL Function, Tabular Input, General and FEM. The tabular input method can support 1D, 2D or 3D by checking the 3 active independent variables. The FEM method is usually used to create a temperature spatial field based on an existing temperature contour. This field can be used for thermal stress/deformation analysis. The PCL function and general function are about the same, ’X, ’Y and ’Z will be used for x, y, z coordinates. PCL math functions can be used with ’X, ’Y and ’Z to form the spatial equations. The following are some useful PCL math functions. It is also allowed create a user-defined PCL function.

mth_sind ( angle )	input angle in degrees
mth_asind (value )	output angle in degrees
mth_cosd (angle )	input angle in degrees
mth_acosd ( value )	output angle in degrees
mth_tand (angle )	input angle in degrees
mth_atand (value )	output angle in degrees
mth_atan2d (y,x )	y is the y component of the tangent, x is the x component of the tangent, return an angle in degrees.
mth_sinr (angle )	input angle in radians
mth_asubr (value)	output angle in radians
mth_cosr (angle )	input angle in radians
mth_acosr (value)	output angle in radians
mth_tanr (angle)	input angle in radians
mth_atanr (value)	output angle in radians
mth_atan2r (y,x)	y is the y component of the tangent, x is the x component of the tangent, return an angle in radians.
mth_sqrt( value )	return square root of the argument.
mth_ln (value )	the natural logarithm.
mth_log ( value )	the common logarithm.
mth_exp ( value )	return power function of natural logarithm base, e to the x power.
mth_abs ( value )	return the absolute value of the input argument.
mth_sign (value)	return a sign -1,0,1 for the value
mth_nint ( value )	return the nearest integer value for the input argument.
mth_max ( val1, val2, .. )	return the largest value of a set of input values.
mth_min ( val1,val2,… )	return the smallest value of a set of input values.
mth_mod ( value, divisor )	return remainder of a number after divided by a divisor.
mth_round (value, ndecimals )	return a value rounded to a specified number of decimals.
mth_sort ( array, dupflag, nleft)	sort an array of integers, optionally removing duplicates.
mth_sort_column (matrix,column,ascend)	sort a two dimensional inter or real array by one of its columns.

mth_sind ( angle )

input angle in degrees

mth_asind (value )

output angle in degrees

mth_cosd (angle )

input angle in degrees

mth_acosd ( value )

output angle in degrees

mth_tand (angle )

input angle in degrees

mth_atand (value )

output angle in degrees

mth_atan2d (y,x )

y is the y component of the tangent,
x is the x component of the tangent,
return an angle in degrees.

mth_sinr (angle )

input angle in radians

mth_asubr (value)

output angle in radians

mth_cosr (angle )

input angle in radians

mth_acosr (value)

output angle in radians

mth_tanr (angle)

input angle in radians

mth_atanr (value)

output angle in radians

mth_atan2r (y,x)

y is the y component of the tangent,
x is the x component of the tangent,
return an angle in radians.

mth_sqrt( value )

return square root of the argument.

mth_ln (value )

the natural logarithm.

mth_log ( value )

the common logarithm.

mth_exp ( value )

return power function of natural logarithm base, e to the x power.

mth_abs ( value )

return the absolute value of the input argument.

mth_sign (value)

return a sign -1,0,1 for the value

mth_nint ( value )

return the nearest integer value for the input argument.

mth_max ( val1, val2, .. )

return the largest value of a set of input values.

mth_min ( val1,val2,… )

return the smallest value of a set of input values.

mth_mod ( value, divisor )

return remainder of a number after divided by a divisor.

mth_round (value, ndecimals )

return a value rounded to a specified number of decimals.

mth_sort ( array, dupflag, nleft)

sort an array of integers, optionally removing duplicates.

mth_sort_column (matrix,column,ascend)

sort a two dimensional inter or real array by one of its columns.

Temperature = mth_sind(’X*360) Qvol = 1200*(1.0-’Z/5.0)

More PCL functions can be found in the Patran’s User’s Menu.

MSC Sinda for Patran only supports tabular input temperature or time fields. General or Model Variable methods are not supported by the MSC Sinda for Patran translator.

Initial Temperature/Temperature	1D Beam/Cross section Area
Temp(MSC Sinda)/Temperature	1D Rod/Cross section Area
Normal Fluxes/Heat Fluxes (all kinds of)	2D Shell/Thickness

Initial Temperature/Temperature

1D Beam/Cross section Area

Temp(MSC Sinda)/Temperature

1D Rod/Cross section Area

Normal Fluxes/Heat Fluxes (all kinds of)

2D Shell/Thickness