   : <a class="code" href="class_s_p_h_1_1solid__dynamics_1_1_initialize_displacement.html">InitializeDisplacement</a>(solid_body, pos_temp){};</div><div class="line"><a name="l00357"></a><span class="lineno">  357</span>&#160;            <span class="keyword">virtual</span> ~<a class="code" href="class_s_p_h_1_1solid__dynamics_1_1_update_average_velocity_and_acceleration.html">UpdateAverageVelocityAndAcceleration</a>(){};</div><div class="line"><a name="l00358"></a><span class="lineno">  358</span>&#160;</