Thermal Fatigue Strength of Gas Turbine Rotor Disc
نویسندگان
چکیده
منابع مشابه
Fatigue Life Prediction and Strength Degradation of Wind Turbine Rotor Blade Composites
Wind turbine rotor blades are subjected to a large number of highly variable loads, but life predictions are typically based on constant amplitude fatigue behaviour. Therefore, it is important to determine how service life under variable amplitude fatigue can be estimated from constant amplitude fatigue behaviour. A life prediction contains different elements: the counting method, formulations ...
متن کاملAdaptive Risk Refinement Methodology for Gas Turbine Engine Rotor Disks
Probabilistic fracture mechanics is a well-established method for predicting the probability-of-fracture (POF) of gas turbine engine rotor disks subject to low-cycle fatigue. An adaptive risk refinement methodology (ARRM) was developed to automate zone discretization and refinement that are typically associated with this approach. ARRM generates initial meshes using an adaptive nodal selection ...
متن کاملAssessment of various rotor tip geometries on a single stage gas turbine performance
Tip leakage loss introduces major part of losses of the rotor in axial gas turbines. Therefore, the rotor blade tip has a considerable effect on rotor efficiency. To understand the flow physics of the rotor tip leakage, we solve the flow field for different tip platforms (passive flow control) and by considering coolant tip injection (active flow control). Various blade tip configurations s...
متن کاملBond Strength in Thermally Sprayed Gas Turbine Shafts
In this paper, the bond strength of thermal spray coatings in high speed shafts has been studied. The metallurgical and mechanical studies has been made on the coated samples and shaft using optical microscopy, scanning electron microscopy (SEM). Keywords—Thermal spray, Residual stress, Wear mechanism, HVOF, Gas compressor shafts
متن کاملBehavior Fatigue Life of Wind Turbine Rotor with Longitudinal Crack Growth
This study concerned the dynamic behavior of the wind turbine rotor. Before all we have studied the loads applied to the rotor, which allows the knowledge their effect on the fatigue, also studied the rotor with longitudinal crack in order to determine stress, strain and displacement. Firstly we compared the first six modes shapes between cracking and uncracking of HAWT rotor. Secondly we show ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: journal of the Japan Society for Testing Materials
سال: 1962
ISSN: 0372-7971
DOI: 10.2472/jsms1952.11.191