Research and Development of a Marine-Type, Contactless, Optical Torque Meter

瀏覽統計 Email 通知 RSS Feed

Information

Details

Project title

Code/計畫編號

MOST106-2221-E019-044

Translated Name/計畫中文名

船用非接觸式光學扭力計之研發

Project Coordinator/計畫主持人

Yaw-Huei Lee

Funding Organization/主管機關

National Science and Technology Council

Department/Unit

Department of Systems Engineering and Naval Architecture

Website

https://www.grb.gov.tw/search/planDetail?id=12233311

Year

2017

Start date/計畫起

01-08-2017

Expected Completion/計畫迄

01-07-2018

Bugetid/研究經費

699千元

ResearchField/研究領域

機械工程

"為了提升船舶效率與節省燃油，須考慮氣候與航線之因素，並依據主機馬力(扭力)輸出規劃出最佳航行路徑與船速；船殼上的生物汙染(biofouling)問題，造成航行時的摩擦阻力增加而致耗油增加。以上問題之解決皆有賴於常時監控主機扭力輸出。因此，為了可以達到即時且長時間的量測與記錄不斷旋轉、大直徑之主機軸扭力，需要發展一套船用非接觸式光學扭力計。本研究擬採用2 片標準規格單向式應變規為量測影像標的，於實驗室中以一定相隔距離貼著於一小直徑鋼軸表面上，並使用伺服馬達(servo motor)轉動此鋼軸以達到一定轉速，再使用雙相機同步分別拍攝此二應變規並進行影像處理分析，最後獲得鋼軸扭轉形變以求得扭力。這套系統與程序經過靜態與動態校驗成功後，此項非接觸式光學扭力計技術即可謂建置完成，日後將可應用於實船大直徑主機軸系進行扭力實測。" "In order to increase the propulsion efficiency and save the energy for a ship, its routing and speed should be well planned considering the factors of weather and route and according to the power (torque) output of the engine; biofouling on the ship hull causes increasing frictional drag and hence fuel consumption during its sail. The solutions to the problems mentioned above rely on constantly monitoring the toque output of the engine. Therefore, to achieve real-time and long-time measurement and recording for the toque of the rotating, large-dimeter engine shaft needs the development of a marine-type, contactless, optical torque meter. This proposal attempts to adopt two standard, single-direction strain gauges as image targets of measurement. In the lab, these two strain gauges will be placed on the surface of a small-diameter, steel shaft with a certain separation distance. This shaft will be rotated by a servo motor at a certain rotational speed, and two cameras are synchronized to respectively take images of the two strain gauges for further processing and analysis to obtain the strain of the shaft to finally derive the torque that forms the strain. This system and procedure will be statically and dynamically calibrated and validated to successfully establish the technology of the contactless, optical torque meter. In the foreseeable future, this technology can be expected to be applied to the cases of full-scale ships with engine shafts of large diameters."

Keyword(s)

扭力計
船用
非接觸式
光學
影像處理與分析
主機軸
torque meter
marine
contactless
optical
image processing and analysis
engine shaft

DSpace CRIS

Research and Development of a Marine-Type, Contactless, Optical Torque Meter

Details

Description