Vibration Suppression with Use of Input Shaping Control in Machining

Area of Science:

• Manufacturing Engineering
• Mechanical Vibrations
• Control Systems

Background:

• Machining generator turbine blades is complex and prone to vibrations.
• Low cutting parameters in CNC machining reduce vibrations but degrade surface quality and accuracy.
• Existing vibration monitoring solutions are often complex or require additional equipment.

Purpose of the Study:

• To counteract vibration phenomena during the machining of generator turbine blades.
• To present a novel method for vibration reduction using modified CNC code.
• To enhance control through Input Shaping Control (ISC).

Main Methods:

• Developed a vibration counteraction method using modified CNC code.
• Modeled the machining process for ISC filter design.
• Implemented the model in Matlab and Simulink environments.

Main Results:

• The proposed Input Shaping Control (ISC) method effectively reduces machining vibrations.
• The method improves surface quality and accuracy of manufactured components.
• No additional hardware is required, only modified CNC code.

Conclusions:

• The developed ISC method offers an efficient solution for vibration problems in CNC machining.
• The method is applicable to various CNC machines, particularly lathes.
• This approach enhances manufacturing precision and component quality.