TY - JOUR T1 - Dynamic Response of a Timoshenko Shaft with a Rigid Disk AU - Luintel, Mahesh Chandra AU - Bajracharya, Tri Ratna JO - Journal of Engineering and Applied Sciences VL - 14 IS - 4 SP - 1239 EP - 1246 PY - 2019 DA - 2001/08/19 SN - 1816-949x DO - jeasci.2019.1239.1246 UR - https://makhillpublications.co/view-article.php?doi=jeasci.2019.1239.1246 KW - Pelton turbine KW -Timoshenko shaft KW -free response KW -forced response KW -vibration KW -critical speed AB - This study presents the method to study the free and forced dynamic response of a shaft of a Pelton turbine unit. Equation of motion for the bending vibration of the shat of the Pelton turbine assembly is developed by using Hamilton principle by assuming Pelton wheel as a rigid disk attached on a Timoshenko shaft. Impact provided by the water jet is represented by Fourier series expansion. Governing equations of the system in terms of coupled partial differential equations are converted into coupled modal equations by using assumed mode method. Then, these coupled ordinary differential equations are solved for free and forced response of the system. ER -