Introduction To Turbine Blades

Turbine engine blades generally bear large working stress and high working temperature, and the changes in stress
and temperature are also frequent and severe. In addition, there are corrosion and wear problems. The requirements
for the working conditions are very demanding, so the blades are required to The processing accuracy is very high.
At the same time, in order to improve turbine efficiency, the surface shape of turbine blades is usually designed as
a twisted variable-section curved surface with a complex shape.
Turbine blades are an important component of the turbine section of a gas turbine engine. The high-speed rotating
blades are responsible for sucking high-temperature and high-pressure airflow into the burner to maintain the engine's
operation. In order to ensure stable operation for a long time in extreme environments of high temperature and pressure,
turbine blades are often forged from high-temperature alloys and cooled using different methods, such as internal airflow
cooling, boundary layer cooling, or thermal barrier coatings to protect the blades. Ensure operational reliability. In steam
turbine engines and gas turbine engines, metal fatigue of blades is the main cause of engine failure. Strong vibration or
resonance may cause metal fatigue. Engineers often use friction dampers to reduce damage to blades caused by these factors.