Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A teaching experiment platform for characteristics and control of variable-pitch aerodynamic system

A system characteristic and aerodynamic technology, applied in teaching models, educational tools, aerospace equipment, etc., can solve the problems of complex variable pitch structure, unmeasurable shaft power, and not light enough, so as to achieve simple transmission relationship, intuitive display, and easy operation convenient effect

Active Publication Date: 2021-08-31
CIVIL AVIATION FLIGHT UNIV OF CHINA
View PDF13 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, one of the two physical systems built is to perform closed-loop control of the blade angle, and the other is to change the blade angle with the direction of the incoming flow to achieve the best angle of attack of the blade. Only the angle sensor and the speed sensor are used. Therefore, shaft power, tension, torque, and electric power cannot be measured on the above two devices; obviously, it is not like this platform that can measure various parameters, and can analyze its input and output characteristics and carry out models with a large amount of input and output data. parameter identification
Moreover, the above two systems have complex variable pitch structures and are not light enough, and they pay more attention to engineering applications; obviously they are not as light as this platform, which is convenient for teaching and demonstration

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A teaching experiment platform for characteristics and control of variable-pitch aerodynamic system
  • A teaching experiment platform for characteristics and control of variable-pitch aerodynamic system
  • A teaching experiment platform for characteristics and control of variable-pitch aerodynamic system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0046] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0047] like figure 1 As shown, the present invention mainly includes a pole position input module, a data acquisition module, a data processing and control module, a variable pitch propeller electric power device and an LCD liquid crystal display module. The present invention takes the data processing and control module as the center, first combines the pole position input module to complete the open-loop control of the variable pitch propeller electric power device; secondly combines the pole position input module and the data acquisition module to complete the control of the variable pitch propeller electric drive The single closed-loop control of the device; furthermore, the parameter identification of the linear model and the nonlinear model of the variable pitch propeller electric power device is completed by combining the pole position input mo...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a characteristic and control experiment platform of a variable-pitch aviation power system, which is composed of a pole position input module, a data acquisition module, a data processing and control module, a variable-pitch power device module and an LCD display module. The pole position input module is used to input control signals, and the data acquisition module processes the potential signals output by several built-in sensors to the AVR microcontroller; the data processing and control module processes the electrical signals collected by the sensors and outputs various measurement parameters. The controller will also output two control signals to respectively control the steering gear and ESC of the variable pitch propeller electric power unit to realize throttle adjustment and pitch adjustment; LCD displays measurement parameters and pole position values. Compared with the traditional large-scale variable-pitch propeller experimental device, this platform is more portable and flexible, and it is easy for teachers to demonstrate and students to operate. In addition, this platform also has the scientific research value of identifying the nonlinear and linear models of the variable-pitch propeller electric power device.

Description

technical field [0001] The present invention relates to a variable-pitch aviation power system characteristics and control teaching experiment platform, which is a small electronic control system based on embedded development of variable-pitch propeller power devices, and is used for teaching demonstrations of related professional courses in the field of civil aviation. In addition, the present invention can also be used to identify the model parameters of the variable-pitch propeller electric power device. Background technique [0002] After the advent of metal propellers in 1923, fixed-pitch propellers were no longer able to meet the take-off and cruise requirements of aircraft. With the advancement of technology, in 1933, the power plant of the automatic variable pitch propeller was used on the Boeing 24 transport aircraft. Since the variable pitch propeller can make full use of the effective power of the engine, there will be no "heavier" or "lighter" propeller, which i...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G09B25/02G09B9/00
CPCG09B9/00G09B25/02
Inventor 安斯奇陈思成陈淑仙侯宽新许宗涵崔毅薛壮
Owner CIVIL AVIATION FLIGHT UNIV OF CHINA
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products