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visual3d:documentation:definitions:adjusted_zatsiorsky-seluyanov_s_segment_inertia_parameters

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visual3d:documentation:definitions:adjusted_zatsiorsky-seluyanov_s_segment_inertia_parameters [2024/11/15 14:46] – wikisysopvisual3d:documentation:definitions:adjusted_zatsiorsky-seluyanov_s_segment_inertia_parameters [2024/11/15 15:25] (current) – wikisysop
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 |  __**ORIGINAL**__\\ This is an example of the **original** properties using Hanavan's geometric model.\\ {{:HanavanInertialProperties.png}}  |  __**MODIFIED**__\\ This is an example of the **modified** properties using De Lava's values.\\ {{:deLevaInertialProperties.png}}  | |  __**ORIGINAL**__\\ This is an example of the **original** properties using Hanavan's geometric model.\\ {{:HanavanInertialProperties.png}}  |  __**MODIFIED**__\\ This is an example of the **modified** properties using De Lava's values.\\ {{:deLevaInertialProperties.png}}  |
  
-1 - Change the **segment geometry** to CUSTOM_SEG+**1.** Change the **segment geometry** to CUSTOM_SEG
  
-2 - To modify the **Mass**, replace the mass factor from the current equation (0.1* Mass) to Zatsiorsky-Seluyanov mass value(For example: "0.1478 * Mass" for a female thigh segment).\\+**2.** To modify the **Mass**, replace the mass factor from the current equation (0.1* Mass) to Zatsiorsky-Seluyanov mass value(For example: "0.1478 * Mass" for a female thigh segment).\\
  
  
-3 - To modify the **Inertia Values**, the expression has to be entered as: "m*r^2"\\+**3.** To modify the **Inertia Values**, the expression has to be entered as: "m*r^2"\\
 Where m is the segment's mass parameter, and r is the IXX, IYY or IZZ radius of gyration parameter. The radius of gyration in De Lava's paper is presented as a percent of segment length, so this value must be multiplied by the length of the segment. Where m is the segment's mass parameter, and r is the IXX, IYY or IZZ radius of gyration parameter. The radius of gyration in De Lava's paper is presented as a percent of segment length, so this value must be multiplied by the length of the segment.
  
-For example, to use the Zatsiorsky-Seluyanov's Inertia Values for the right thigh for a female subject, the following expressions would have to be entered in the IXX, IYY and IZZ fields.+ For example, to use the Zatsiorsky-Seluyanov's Inertia Values for the right thigh for a female subject, the following expressions would have to be entered in the IXX, IYY and IZZ fields.
  
-IXX = ( 0.1478*Mass ) *((RTH_SEG_LENGTH * 0.369 )^2)\\ +  IXX = ( 0.1478*Mass ) *((RTH_SEG_LENGTH * 0.369 )^2) 
-IYY = ( 0.1478*Mass ) *((RTH_SEG_LENGTH * 0.364 )^2)\\ +  IYY = ( 0.1478*Mass ) *((RTH_SEG_LENGTH * 0.364 )^2) 
-IZZ = ( 0.1478*Mass ) *((RTH_SEG_LENGTH * 0.162 )^2)\\+  IZZ = ( 0.1478*Mass ) *((RTH_SEG_LENGTH * 0.162 )^2)
  
  
-4 - To modify the location of the **center of mass** according to Zatsiorsky-Seluyanov's parameters, replace the factor from the current equation (0.444004 * RTH_Seg_Length in the above image) with the corresponding Centre of Mass location parameter (for example: "0.3612 * RTH_Seg_Length" for a female thigh segment).+**4.** To modify the location of the **center of mass** according to Zatsiorsky-Seluyanov's parameters, replace the factor from the current equation (0.444004 * RTH_Seg_Length in the above image) with the corresponding Centre of Mass location parameter (for example: "0.3612 * RTH_Seg_Length" for a female thigh segment).
  
-  * The segment length (RTH_SEG_LENGTH) is listed under the Subject Data / Metrics tabs. This value is automatically created when a segment is created.+ The segment length (RTH_SEG_LENGTH) is listed under the Subject Data / Metrics tabs. This value is automatically created when a segment is created.
  
 ==== Reference ==== ==== Reference ====
visual3d/documentation/definitions/adjusted_zatsiorsky-seluyanov_s_segment_inertia_parameters.1731682012.txt.gz · Last modified: 2024/11/15 14:46 by wikisysop