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*Statistics |
 
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*Statistics
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*Statistics |
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To request the creation of statistics plots.
Refer to Database Postprocessing for further information on this feature.
Blocks of lines repeated as often as necessary. Each block begins with a line defining the type of statistics plot. This is followed by lines requesting the actual plots.
Block requesting kinematic statistics. Lines 2 and 3 can be repeated as often as necessary. Line 3 is optional.
TYPE=KINEMATIC [, SET=Set Name]
Statistic, DOF [, PARA=Parameter] [, Start Time] [, Scale] [, UNITS=Unit]
[TITLE=Figure Title]
Block requesting force statistics. Lines 2 and 3 can be repeated as often as necessary. Line 3 is optional.
TYPE=FORCE [, SET=Set Name]
Statistic, Variable [, Start Time] [, Scale] [, LOCATION=Location] [, UNITS=Unit]
[TITLE=Figure Title]
Block requesting statistics of seabed reaction forces. Lines 2 and 3 can be repeated as often as necessary. Line 3 is optional.
TYPE=SEABED_REACTION [, SET=Set Name]
Statistic, DOF, [, Start Time] [, Scale] [, UNITS=Unit]
[TITLE=Figure Title]
Refer to Force Variable Input for further information on acceptable Variable values. Refer to Location Parameter Input for further information on the significance of the Location input.
If an element set is specified then its composition must be defined either here or in the Analysis data. If a plot of extreme value is requested, the *EXTREMA keyword must be invoked. Set Name defaults to all elements (set ALL). Statistic can be ENVELOPE, MEAN, DEVIATION or EXTREME. Parameter can be M (for motion, the default), V (for velocity) or A (for acceleration). The latter two are appropriate only if the motion database contains these parameters. Start Time defaults to the analysis start time. Scale defaults to 1. The Unit entry defaults to base units. Figure Title defaults to blank.
To request a plot of motion statistics.
Input: |
Description |
Statistic: |
This entry allows you to specify the statistical parameter required. Envelope (the default) in this context means max/min envelopes, Mean is mean value, Deviation is standard deviation, and Extreme is extreme value calculated using either the Rayleigh or Weibull distribution. See Note (a). |
DOF: |
The global degree of freedom (DOF) for which the statistics plot is required. Specify a value of 1 for the global X-direction, 2 for the global Y-direction, or 3 for the global Z-direction; 4, 5 or 6 for the components of the rotation vector about the global X, Y and Z axes respectively, or 7 for the magnitude of 4, 5, and 6; or 8 for the magnitude of 1, 2, and 3. |
Parameter: |
This entry allows you to select the response parameter to be plotted against time. The options are Motion (the default), Velocity and Acceleration. See Note (b). |
Start Time: |
The start time for the calculation of statistics. Flexcom excludes any values before this time. Use this entry to exclude initial transients from statistical calculations. |
Title: |
A descriptive title to be associated with the output. This entry is optional. |
Scale: |
A scale factor to apply to the data. This entry is optional, and defaults to a value of 1. |
Element Set: |
The element set for which the statistics plot is to be produced. The plot is produced by default for all elements of the structure, which corresponds to the element set All. |
Unit: |
The units to be used for the vertical axis of the plot. This entry is optional, and defaults to the base units for this output type. See Note (c). |
(a)If you request an extreme value plot, you must use the relevant Extreme Values table to nominate the distribution (Rayleigh or Weibull) to use in calculating these extrema, and to input parameter values appropriate to the distribution you nominate.
(b)In order to produce spectra of velocity and acceleration you must have requested extended output to the analysis database. Refer to the *DATABASE CONTENT keyword for more details.
(c)The units entry explicitly specifies what units are to be assigned to the vertical axis of the plot. This entry is optional, and if omitted, Flexcom simply assigns suitable units depending on the base units for the particular output type. If you do explicitly specify a unit, then it must be consistent with the dimension of the output type. For example, force can be specified in Newtons, Kips etc. The program is quite flexible in terms of accepting unit descriptions – e.g. Newtons, Newton, N etc. are all equally valid. For a list of the units accepted by Flexcom, refer to Units Reference Guide.
To request a plot of force statistics.
Input: |
Description |
Parameter: |
This option allows you to specify the statistical parameter required. Envelope (the default) in this context means max/min envelopes, Mean is mean value, Deviation is standard deviation, and Extreme is extreme value calculated using either the Rayleigh or Weibull distribution. See Note (a). |
Variable: |
This list allows you to select a relevant output parameter. The entries are largely self-explanatory. See Note (b). |
Start Time: |
The start time for the calculation of statistics. Flexcom excludes any values before this time. Use this entry to exclude initial transients from statistical calculations. |
Title: |
A descriptive title to be associated with the output. This entry is optional. |
Scale: |
A scale factor to apply to the data. This entry is optional, and defaults to a value of 1. |
Element Set: |
The element set for which the plot is to be produced. The plot is produced by default for all elements of the structure, which corresponds to the element set All. |
Location: |
This parameter is appropriate when you request bending stress, bending strain, von Mises stress, or pressure. See Note (c). |
Unit: |
The units to be used for the vertical axis of the plot. This entry is optional, and defaults to the base units for this output type. See Note (d). |
(a)If you request an extreme value plot, you must use the the *EXTREMA keyword to nominate the distribution (Rayleigh or Weibull) to use in calculating these extrema, and to input parameter values appropriate to the distribution you nominate.
(b)Refer to Force and Stress Outputs for a detailed discussion of the various output parameters.
(c)Refer to Location Parameter Input for further information on the significance of the Location input.
(d)The units entry explicitly specifies what units are to be assigned to the vertical axis of the plot. This entry is optional, and if omitted, Flexcom simply assigns suitable units depending on the base units for the particular output type. If you do explicitly specify a unit, then it must be consistent with the dimension of the output type. For example, force can be specified in Newtons, Kips etc. The program is quite flexible in terms of accepting unit descriptions – e.g. Newtons, Newton, N etc. are all equally valid. For a list of the units accepted by Flexcom, refer to Units Reference Guide.
To request a plot of seabed reaction force statistics.
Input: |
Description |
Statistic: |
This entry allows you to specify the statistical parameter required. Envelope (the default) in this context means max/min envelopes, Mean is mean value, Deviation is standard deviation, and Extreme is extreme value calculated using either the Rayleigh or Weibull distribution. See Note (a). |
DOF: |
The global degree of freedom (DOF) for which the statistics plot is required. Specify a value of 1 for the global X-direction, 2 for the global Y-direction, 3 for the global Z-direction, or 4 for the magnitude of 1, 2, and 3. |
Start Time: |
The start time for the calculation of statistics. Flexcom excludes any values before this time. Use this entry to exclude initial transients from statistical calculations. |
Title: |
A descriptive title to be associated with the output. This entry is optional. |
Scale: |
A scale factor to apply to the data. This entry is optional, and defaults to a value of 1. |
Element Set: |
The element set for which the statistics plot is to be produced. The plot is produced by default for all elements of the structure, which corresponds to the element set All. |
Unit: |
The units to be used for the vertical axis of the plot. This entry is optional, and defaults to the base units for this output type. See Note (b). |
(a)If you request an extreme value plot, you must use the relevant Extreme Values table to nominate the distribution (Rayleigh or Weibull) to use in calculating these extrema, and to input parameter values appropriate to the distribution you nominate.
(b)The units entry explicitly specifies what units are to be assigned to the vertical axis of the plot. This entry is optional, and if omitted, Flexcom simply assigns suitable units depending on the base units for the particular output type. If you do explicitly specify a unit, then it must be consistent with the dimension of the output type. For example, force can be specified in Newtons, Kips etc. The program is quite flexible in terms of accepting unit descriptions – e.g. Newtons, Newton, N etc. are all equally valid. For a list of the units accepted by Flexcom, refer to Units Reference Guide.