QUESTIONS OF DEVELOPMENT OF THE TECHNOLOGY AND MANUFACTURING OF SENSOR AND ACTUATOR ELEMENTS OF THE SYSTEMS OF STRUCTURAL PERFORMANCE MONITORING BASED ON PIEZOCERAMIC MATERIALS

Abstract

Background. As of today in Russia there are no scientific-technical and experimental-technological reserves on development of systems of structural monitoring of serviceability of products and objects of rocket-space technology (RST) and ground space infrastructure (GSI) with transducers of physical quantities on the basis of macrofiber actuators on the basis of inverse piezo effect necessary for full assessment of reliability of technically complex objects by non-destructive methods. The development of the latest generation of aerospace structures requires the creation of advanced materials that would have high physical and mechanical parameters, meet reliability and durability requirements for specific tasks. Great importance is also given to active materials and structures capable of forming functional shapes and profiles depending on the external influence, i.e. to ensure the fulfillment of one of the principles of the motion control concept – adaptronics. The formation of functional shapes and profiles will provide optimal wing aerodynamic profile, better maneuverability of the aircraft, reduce fuel, energy consumption and provide better remote control in extreme space conditions. The purpose of this article is to create a scientific-technical and experimental-technological reserve for the development of advanced technologies for the production of sensor and actuator elements of structural performance monitoring systems based on piezoceramic materials and technologies for incorporation into the elements of composite structures of RST and GSI products in order to control and manage their characteristics to prevent emergencies. Materials and methods. The paper considers the structure of the system of structural monitoring of serviceability of products and objects of RST and GSI with transducers of physical quantities on the basis of macrofiber actuators based on the inverse piezo effect. Results. As a result of technology implementation, import-independent self-regulating adaptive structures of spacecraft structures and equipment will be created on the basis of controllable properties of materials with response to external influences. Implementation of the technology will make it possible to create an effective system for controlling vibrations of structural elements. The developed piezoactuators will find applications in structural monitoring systems of the aerospace industry in rocket and space technologies and mechanical engineering.

Keywords

• mathematical model
• structural monitoring
• piezoceramics
• piezoactuator
• piezo effect
• macrofiber actuators
• macrofiber piezocomposites