Than you ! Radu 在2024年3月20日星期三 UTC+8 21:48:25<Radu Serban> 写道：
> Yupeng – you can do this by implementing your own custom force callback > for a ChLinkTSDA. > > See demo_MBS_spring.cpp > <https://github.com/projectchrono/chrono/blob/aad5e16bf2c585fca6d00655879bba3c550a9c9e/src/demos/mbs/demo_MBS_spring.cpp#L57> > > which illustrates the use of such a callback mechanism. While that example > is very simple and for demonstration only, you can implement whatever > function you want for the force produced by the spring. Within the > Evaluate() function, you have access to the ChLinkTSDA element itself which > means you can access the current positions of the connected bodies and use > that in the force evaluation if you so desire. > > > > --Radu > > > > *From:* 'Yupeng Duan' via ProjectChrono <[email protected]> > *Sent:* Wednesday, March 20, 2024 2:18 PM > *To:* ProjectChrono <[email protected]> > *Subject:* [chrono] How to set a spring whose stiffness changes with > body's displacement > > > > Hi > > I am a beginer in using ProjectChrono, I want to calculate a body with a > spring linked with the ground but the stiffness changes with the > displacement of the body. I tryed give a if() i during the runtime ,but it > seems nothing has changed, what should I do for this purpose. > > > > -- > You received this message because you are subscribed to the Google Groups > "ProjectChrono" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/projectchrono/0de81a94-f565-4993-bf28-9853a53571c1n%40googlegroups.com > > <https://urldefense.com/v3/__https:/groups.google.com/d/msgid/projectchrono/0de81a94-f565-4993-bf28-9853a53571c1n*40googlegroups.com?utm_medium=email&utm_source=footer__;JQ!!Mak6IKo!NBkSFrWmlAAPg-xoaBVErDHmki5R00tSKi_2t3jbHlQh76lcbf6qIgnRaXTJ0JjwSiL0TSwi864ChkYhIj7OMBAskqg$> > . > -- You received this message because you are subscribed to the Google Groups "ProjectChrono" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/projectchrono/cbbbc151-791a-4b7d-921d-46c1d0c19372n%40googlegroups.com.
