# MAP program for mooring line analysis

**URL:** <https://forums.nlr.gov/t/map-program-for-mooring-line-analysis/3654>\
**Category:** Uncategorized\
**Created:** [August 20, 2022, 7:09pm UTC](https://forums.nlr.gov/t/map-program-for-mooring-line-analysis/3654 "2022-08-20T19:09:13Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Riad.Elhamoud](https://dub1.discourse-cdn.com/nrel/user_avatar/forums.nlr.gov/riad.elhamoud/32/5481_2.png) [@Riad.Elhamoud](https://forums.nlr.gov/u/Riad.Elhamoud)\
**Post date:** [August 20, 2022, 7:09pm UTC](https://forums.nlr.gov/t/map-program-for-mooring-line-analysis/3654/1 "2022-08-20T19:09:13Z")

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Hello everyone,

I am running MAP program standalone to obtain the mooring lines stiffness matrix around the equilibrium point. The code runs without errors.

My question is: the mass of the floating body should not affect the mooring stiffness matrix ?

I haven’t seen any mass in the input file of MAP?

Am i wrong ?

Thank u in advance.

Riad

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**Author:** ![Matthew.Hall](https://avatars.discourse-cdn.com/v4/letter/m/97f17d/32.png) [@Matthew.Hall](https://forums.nlr.gov/u/Matthew.Hall)\
**Post date:** [August 22, 2022, 3:20pm UTC](https://forums.nlr.gov/t/map-program-for-mooring-line-analysis/3654/2 "2022-08-22T15:20:52Z")

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Hi Riad,  
For a given equilibrium position, the body mass shouldn’t have any effect on the mooring system stiffness matrix.  
Best,  
Matt