Animation double pendulum and a pendulum on a spring - Ber7 Options  Email this topic  Watch this topic  Print this topic » Normal Threaded

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Ber7		#1 Posted : 23 June 2011 17:33:05(UTC)
Rank: Advanced Member Groups: Registered Joined: 15/07/2010(UTC) Posts: 437 Location: Beer-Sheva Was thanked: 520 time(s) in 288 post(s)		http://smath.info/wiki/G....aspx?File=DPendulum.rar
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Ber7		#2 Posted : 23 June 2011 17:35:31(UTC)
Rank: Advanced Member Groups: Registered Joined: 15/07/2010(UTC) Posts: 437 Location: Beer-Sheva Was thanked: 520 time(s) in 288 post(s)		http://smath.info/wiki/G...spx?File=SwingSpring.rar
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Ber7		#3 Posted : 05 October 2011 06:55:05(UTC)
Rank: Advanced Member Groups: Registered Joined: 15/07/2010(UTC) Posts: 437 Location: Beer-Sheva Was thanked: 520 time(s) in 288 post(s)		http://smath.info/wiki/G...px?File=SwingSpring1.rar
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Ber7		#4 Posted : 06 November 2011 00:42:51(UTC)
Rank: Advanced Member Groups: Registered Joined: 15/07/2010(UTC) Posts: 437 Location: Beer-Sheva Was thanked: 520 time(s) in 288 post(s)		http://smath.info/wiki/G...px?File=ElleptPendul.rar
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Ber7		#5 Posted : 23 March 2012 01:38:36(UTC)
Rank: Advanced Member Groups: Registered Joined: 15/07/2010(UTC) Posts: 437 Location: Beer-Sheva Was thanked: 520 time(s) in 288 post(s)		http://smath.info/wiki/G...?File=ElastSuspesion.rar
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Ber7		#6 Posted : 03 October 2012 06:41:11(UTC)
Rank: Advanced Member Groups: Registered Joined: 15/07/2010(UTC) Posts: 437 Location: Beer-Sheva Was thanked: 520 time(s) in 288 post(s)		Pendulum on an elastic string, which is wound on a disk Translated from Mathcad program (the author-Alen Stevens) http://communities.ptc.com/videos/3335 http://smath.info/wiki/G....aspx?File=ELastPend.rar
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Ber7		#7 Posted : 29 May 2013 19:49:49(UTC)
Rank: Advanced Member Groups: Registered Joined: 15/07/2010(UTC) Posts: 437 Location: Beer-Sheva Was thanked: 520 time(s) in 288 post(s)		Crankshaft-Driven Pendulum The idea is taken from the site http://demonstrations.wo...rankshaftDrivenPendulum/ Interactive animation http://smath.info/wiki/G...x?File=PendulKrivExe.rar File Attachment(s): PendulKriv1.sm (26kb) downloaded 83 time(s). Ber7 attached the following image(s):
3 users thanked Ber7 for this useful post.		on 29/05/2013(UTC),  on 29/05/2013(UTC),  on 29/05/2013(UTC)
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Ber7		#8 Posted : 06 June 2013 15:43:27(UTC)
Rank: Advanced Member Groups: Registered Joined: 15/07/2010(UTC) Posts: 437 Location: Beer-Sheva Was thanked: 520 time(s) in 288 post(s)		Originally Posted by: Ber7 Pendulum on an elastic string, which is wound on a disk Translated from Mathcad program (the author-Alen Stevens) http://communities.ptc.com/videos/3335 http://smath.info/wiki/G....aspx?File=ELastPend.rar Interactive animation http://smath.info/wiki/G...px?File=ELastPendExe.rar Ber7 attached the following image(s):
2 users thanked Ber7 for this useful post.		on 06/06/2013(UTC),  on 06/06/2013(UTC)
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Ber7		#9 Posted : 30 July 2013 20:56:21(UTC)
Rank: Advanced Member Groups: Registered Joined: 15/07/2010(UTC) Posts: 437 Location: Beer-Sheva Was thanked: 520 time(s) in 288 post(s)		Rigid rod rocks on a circular surface (Ali H.Nayfeh,Dean T.Mook,Nonlinear Oscillations,1995) Used an ODE plugin. Edited by user 31 July 2013 01:58:28(UTC)  | Reason: Not specified File Attachment(s): rigid1.smz (38kb) downloaded 76 time(s).
2 users thanked Ber7 for this useful post.		on 30/07/2013(UTC),  on 31/07/2013(UTC)
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mkraska		#10 Posted : 31 July 2013 00:05:22(UTC)
Rank: Advanced Member Groups: Registered Joined: 15/04/2012(UTC) Posts: 1,988 Was thanked: 1126 time(s) in 723 post(s)		I 'd propose some adjustments to the functions x(t) and y(t) x(t):eval(r*(sin(θ(t))-θ(t)*cos(θ(t)))) y(t):eval(r*(cos(θ(t))+θ(t)*sin(θ(t)))) The differential equation does not account for h, therefore it is correct only for h=0 (rigid bar with no thickness). Edited by user 31 July 2013 00:32:20(UTC)  | Reason: Not specified File Attachment(s): Stange.gif (1,058kb) downloaded 78 time(s). rigid1.sm (51kb) downloaded 73 time(s).
		Martin Kraska Pre-configured portable distribution of SMath Studio: https://smath.com/wiki/SMath_with_Plugins.ashx
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Ber7		#11 Posted : 31 July 2013 02:08:55(UTC)
Rank: Advanced Member Groups: Registered Joined: 15/07/2010(UTC) Posts: 437 Location: Beer-Sheva Was thanked: 520 time(s) in 288 post(s)		Thank you,Martin! Your comments are absolutely correct. I really made a mistake, you have corrected. Workheet updated. Thank you again. Fridel Selitsky.
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Ber7		#12 Posted : 31 July 2013 12:19:31(UTC)
Rank: Advanced Member Groups: Registered Joined: 15/07/2010(UTC) Posts: 437 Location: Beer-Sheva Was thanked: 520 time(s) in 288 post(s)		I should add that the equations of motion of the center of the rod obtained by Martin, are the parametric equations of the involute, which corresponds to the physical meaning of the problem.
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Ber7		#13 Posted : 05 August 2013 18:41:35(UTC)
Rank: Advanced Member Groups: Registered Joined: 15/07/2010(UTC) Posts: 437 Location: Beer-Sheva Was thanked: 520 time(s) in 288 post(s)		Fluctuations of three loads (Ali H.Nayfeh,Dean T.Mook,Nonlinear Oscillations,1995) The system consists of two extreme loads mass m1 and medium load mass m2 (2m1> m2). If the average load deviate from the equilibrium position, the system begins to oscillate File Attachment(s): Blok2.smz (43kb) downloaded 84 time(s).
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Ber7		#14 Posted : 11 August 2013 19:29:48(UTC)
Rank: Advanced Member Groups: Registered Joined: 15/07/2010(UTC) Posts: 437 Location: Beer-Sheva Was thanked: 520 time(s) in 288 post(s)		Неваляшка(Roly-poly) The idea is taken from the site http://demonstrations.wo....com/RockingRolyPolyToy/ The center of mass is below the center of rotation of the body File Attachment(s): PoluCil1.smz (10kb) downloaded 73 time(s).
3 users thanked Ber7 for this useful post.		on 11/08/2013(UTC),  on 11/08/2013(UTC),  on 11/08/2013(UTC)
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Ber7		#15 Posted : 26 August 2013 22:26:45(UTC)
Rank: Advanced Member Groups: Registered Joined: 15/07/2010(UTC) Posts: 437 Location: Beer-Sheva Was thanked: 520 time(s) in 288 post(s)		Pendulum Dangling from a Slider-Crank File Attachment(s): PendulKrivGoriz.smz (7kb) downloaded 74 time(s).
2 users thanked Ber7 for this useful post.		on 27/08/2013(UTC),  on 29/08/2013(UTC)
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Ber7		#16 Posted : 02 September 2013 15:12:56(UTC)
Rank: Advanced Member Groups: Registered Joined: 15/07/2010(UTC) Posts: 437 Location: Beer-Sheva Was thanked: 520 time(s) in 288 post(s)		Examples from the book “Ali H.Nayfeh,Dean T.Mook,Nonlinear Oscillations,1995” File Attachment(s): Particle.smz (52kb) downloaded 71 time(s). Rod in Circle.smz (81kb) downloaded 71 time(s). roll-rolling.smz (59kb) downloaded 69 time(s). Mass slides.smz (48kb) downloaded 69 time(s).
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