عنوان المقالة: The modeling and simulation for vibration of steam turbine shaft
وطبان خالد فهمي التكريتي | Al- TEKREETI Watban Khalid Fahmi | 3115
نوع النشر
رسالة ماجستير
المؤلفون بالعربي
المؤلفون بالإنجليزي
Al-Tekreeti Watban Khalid Fahmi
الملخص الانجليزي
One of the main concerns of humankind is the energy, which is need to prepare food and other requirements that are necessary to live and progress. There are multifarious kind of energy source, one of the acceptable kind of them is steam power which use in steam turbines to yield electrical energy. Improving the efficiency rate of steam turbines can upgrade the capacity of the energy that can be obtain from it. One of the main aspects which reduce the efficiency of the steam turbines is the vibration, especially the torsional vibration. There are used different method to calculate the proposed vibration such as HOLZER method and finite element method. To corroborate the calculation which are done based on the analytical and numerical method, usually the system is simulated in software like MSC ADAMS and ANSYS. The aforementioned process helps the steam turbine’s constructors to build high efficient steam turbines. In this study, N330-16.7/538/538 a 330MW Reheat Condensing Steam Turbine is considered as a case study. To calculate the vibration effect on the proposed steam turbine’s shaft, direct and indirect, Fixed - Fixed, Fixed -Free, Free- Fixed, MATLAB code, Eigen value problem and HOLZER method are used. To corroborate the proposed vibration’s calculation, the under-study steam turbine is simulated in MSC ADAMS software. To simulate the proposed system in the MSC ADAMS software, a model of the system made using CAD model is designed in the CATIA software and then the constraints and joints are added to the system. Moreover, the shaft of the under-study steam turbine is converted to a flex body. A lot of factors such as friction, damping ratio are considered in the system to achieve the best results which can use to construct a real system. Finally, the results which are obtained based on numerical and analytical calculation and the simulation are compared together, and the simulation results verified the calculation ones.
تاريخ النشر
26/12/2017
الناشر
REPUBLIC OF TURKIYE ERCIYES UNIVERSITY GRADUATE
رقم المجلد
رقم العدد
الصفحات
151
الكلمات المفتاحية
Steam Turbine; HOLZER method; Torsional Vibration; Natural Frequency; MSC ADAMS Simulation.
رجوع