iMechanica - mass
https://imechanica.org/taxonomy/term/3047
enHow to classify vehicle parts into sprung and unsprung mass?
https://imechanica.org/node/7413
<div class="field field-name-taxonomy-vocabulary-6 field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/77">opinion</a></div></div></div><div class="field field-name-taxonomy-vocabulary-8 field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/2045">automobile</a></div><div class="field-item odd"><a href="/taxonomy/term/3047">mass</a></div><div class="field-item even"><a href="/taxonomy/term/3968">vehicle dynamics</a></div><div class="field-item odd"><a href="/taxonomy/term/4721">parameters</a></div><div class="field-item even"><a href="/taxonomy/term/4722">inertia</a></div></div></div><div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even"><p>I am currently working on deriving equations for different vehicle models using Lagrangian and Newtonian methods. I am need of parameters to test few MATLAB models, and in vague to know exactly how to classify the mass into sprung and unsprung. Similarly, how do I obtain the MOI separately for the unsprung mass?</p>
</div></div></div>Thu, 21 Jan 2010 05:36:52 +0000vinay.warrier7413 at https://imechanica.orghttps://imechanica.org/node/7413#commentshttps://imechanica.org/crss/node/7413Second Newton law sample in Ansys
https://imechanica.org/node/4268
<div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even"><p class="MsoNormal">
<span> Hello!!!</span>
</p>
<p class="MsoNormal">
<span></span>
</p>
<p><span>Have anyone been using ansys (no ls-dyna) to simulate the second Newton law in the X direction? </span><span>I am getting an issue with it, could you please review the steps below and tell me what I am missing?</span><span> </span><span>1.- geometry: square (problem 2d) over ground</span><span>2.- Apply vertical load in the square. gravitational effect is not considered (acel y = 0)</span><span>3.- square displacement over the X direction in a transient analysis (time is taken into account)</span><span> </span><span>touch force is ok = friction coefficient * vertical force. however when I check the inertial force having fsum over all the square nodes I don’t get correct results:</span><span>inertial force is very different than mass * acceleration due to the displacement over the time.</span><span>one thing that I have checked is the prrsol graphic for the node in which the displacement was applied, it is everytime up and down.</span><span> </span> </p>
<p class="MsoNormal">
<span>note: the contact is properly defined and the density and friction coefficient are also included.</span>
</p>
<p class="MsoNormal">
<span></span>
</p>
<p class="MsoNormal">
<span>Thanks in advance!!!</span>
</p>
</div></div></div><div class="field field-name-taxonomy-forums field-type-taxonomy-term-reference field-label-above"><div class="field-label">Forums: </div><div class="field-items"><div class="field-item even"><a href="/forum/109">Ask iMechanica</a></div></div></div><div class="field field-name-taxonomy-vocabulary-8 field-type-taxonomy-term-reference field-label-above"><div class="field-label">Free Tags: </div><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/1303">ansys</a></div><div class="field-item odd"><a href="/taxonomy/term/3045">inertial</a></div><div class="field-item even"><a href="/taxonomy/term/3046">aceleration</a></div><div class="field-item odd"><a href="/taxonomy/term/3047">mass</a></div><div class="field-item even"><a href="/taxonomy/term/3048">moving</a></div></div></div>Tue, 11 Nov 2008 00:16:28 +0000john smith_4268 at https://imechanica.orghttps://imechanica.org/node/4268#commentshttps://imechanica.org/crss/node/4268Error | iMechanica