Automatic Detection Method of Propeller Static Balance

Abstract

A new method for automatic detection of propeller static balance, which uses images as the basis for non-contact automatic detection of propeller static balance. It first uses computer, projector, camera and other equipment to collect images of the propeller, and then obtains the two-dimensional image coordinate system coordinates of all projection points of the blade based on digital image processing technology, and then uses the camera calibration model to calculate the coordinates of all projection points of the blade. The coordinates of the three-dimensional real world coordinate system, and finally the static balance detection of the propeller is realized by the computer.

Description

Technical field: [0001] The invention belongs to the related field of propeller detection, in particular to a new image-based non-contact automatic detection method for propeller static balance. technical background: [0002] The propeller is an important propulsion device of the ship, and the balance of the propeller directly affects the propulsion efficiency of the ship. In order to ensure the manufacturing quality of propellers, the State Bureau of Technical Supervision has issued national standards on the technical requirements of metal propellers, which regulate many technical indicators including propeller static balance. The balance of the propeller largely affects the vibration of the shafting of the ship, the absorption of power, the wear of the stern tube bearing and the intermediate bearing, and the safety and reliability of the power source to the shafting. When the propeller is out of balance, it will have adverse effects on its own strength and bending strengt...

AI Technical Summary

Problems solved by technology

However, these methods are complex and inefficient, and cannot meet the requirements of rapid manufacturing of propellers, especially for large propellers.

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