Newmark integrator

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aminrahmaani
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Newmark integrator

Post by aminrahmaani » Fri Jun 17, 2011 8:34 pm

Hi,

The results of my numerical model are significantly affected by the value of Newmark Integrator parameters. I looked at some examples, and I noticed that different values are being used by different people e.g. 0.5, 0.65, 1.6 and ... I'm wondering whether I can use the value of let's say 3.0 or 8.0 for the parameter gamma!!! There is no limit for these parameters????

fmk
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Re: Newmark integrator

Post by fmk » Sun Jun 19, 2011 1:21 am

of course there are limits! .. there is none in the code to allow people who know what they are doing to play with the coeficients .. the manual describes the 2 typical cases .. i suggest that before you go using values seected at ranom you do a small litearature review for papers describing the different values that are used and why these values are used .. in the meantime stick to either linear or constant accel.

solute147
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Joined: Mon Aug 22, 2011 5:19 pm

新建 文本文档

Post by solute147 » Tue Aug 23, 2011 2:21 am

Thanks for information

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