@article{O. Waheed_2022, title={STABILITY AND DYNAMIC ANALYSES OF PIPE CONVEYED FLUID STIFFENED BY LINEAR STIFFNESS ELEMENT USING FINITE ELEMENTS METHOD}, volume={22}, url={https://www.iqjfmme.com/index.php/jmme/article/view/585}, DOI={10.32852/iqjfmme.v22i1.585}, abstractNote={<p>Different types of dynamic instability of the system occur when the flow velocity exceeds a <br>specific value; thereby the problem of dynamic instability of the pipe conveyed flow <br>became shining. Several effective parameters play an important role in stabilizing the <br>system, such as stiffness addition. In this search, dynamic analysis of pipe conveying fluid <br>stiffened by linear spring was studied using the finite element method. The effect of <br>stiffness addition (linear spring) and the effect of spring location was deeply studied. Also, <br>the effect of flow velocity on the dynamic stability of the system was taken into the <br>consideration. It was observed that there is a critical flow velocity after which the system <br>loses its stability. There is a critical spring constant at which the dynamic behavior becomes <br>more sensitive. Also, there is a specific spring location (effective location) so the spring <br>offers the best results for the frequency of the system. Effective spring locations depend on <br>the flow velocity and spring constant itself. The effective spring location was found to be <br>arranged from x/l= 0.7 to 1.</p>}, number={1}, journal={THE IRAQI JOURNAL FOR MECHANICAL AND MATERIALS ENGINEERING}, author={O. Waheed , Salwan}, year={2022}, month={Apr.}, pages={52–67} }