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	<title>Real-Time Physics Simulation Forum</title>
	
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	<updated>2022-05-30T14:47:23+00:00</updated>

	<author><name><![CDATA[Real-Time Physics Simulation Forum]]></name></author>
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		<entry>
		<author><name><![CDATA[orange_juice]]></name></author>
		<updated>2022-05-30T14:47:23+00:00</updated>

		<published>2022-05-30T14:47:23+00:00</published>
		<id>https://pybullet.org/Bullet/phpBB3/viewtopic.php?p=44026#p44026</id>
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		<title type="html"><![CDATA[legged robot fly away when applied torque on leg motors]]></title>

		
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You can see in this link.<br><a href="https://youtu.be/P5sMrNqqpzk" class="postlink">https://youtu.be/P5sMrNqqpzk</a><br><br>Script output:<br>QP solution: x = [1.97274706e-02 3.30290196e-01 1.20748465e-12 1.97274709e-02<br> 3.29880345e-01 1.20957151e-12 1.97274712e-02 3.29470003e-01<br> 1.21165332e-12 1.71003468e-02 3.29470003e-01 1.25240257e-12<br> 1.71003468e-02 3.29880345e-01 1.25050645e-12 1.71003468e-02<br> 3.30290196e-01 1.24860524e-12]<br>torques= [-0.007089229708272171, -0.11855267506778587, -0.08752904921373267, -0.00708923078590513, -0.11840497984810472, -0.08742045564322172, -0.007089233043473016, -0.11825713974426294, -0.08731173018363321, -0.0061475401180276276, 0.11823816253825556, 0.08731064634188268, -0.00614754038323656, 0.11838597957260431, 0.08741937000552441, -0.006147540646661376, 0.11853362213019486, 0.08752796377193674]<br><br>The QP solution x is the contact force return by a qpsolver.<br>Torques are calculated using the jacobian matrix.<br>Torques only applied once, and it seems to be very small, but the robot just fly away and never fall down. <br>I wonder what the cause of this problem. Can any one help me? Thanks in advance!<br><br>Here is the code:<br><a href="https://github.com/uyiyiyi/hexapod" class="postlink">https://github.com/uyiyiyi/hexapod</a><p>Statistics: Posted by <a href="https://pybullet.org/Bullet/phpBB3/memberlist.php?mode=viewprofile&amp;u=14342">orange_juice</a> — Mon May 30, 2022 2:47 pm</p><hr />
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