Featured Research

from universities, journals, and other organizations

Robot Inspects Wind Energy Converters

Date:
January 22, 2009
Source:
Fraunhofer-Gesellschaft
Summary:
The material of wind energy converters must withstand intense forces. Are rotor blades damaged? A new robot inspects wind energy converters more precisely than a human ever could. It detects the minutest damage – even below the surface.

A robot inspects a wind energy converter’s rotor blades for possible damage.
Credit: Copyright Fraunhofer IFF

The material of wind energy converters must withstand intense forces. Are rotor blades damaged? A new robot inspects wind energy converters more precisely than a human ever could. It detects the minutest damage – even below the surface.

It appears reliably and appears alone. Nimbly and quickly, it pulls itself up a rope meter for meter until it reaches a wind energy converter’s giant rotor blades. Then it goes to work. It thoroughly inspects every centimeter of the rotor blades’ surface. Nothing escapes it. It registers any crack and any delamination in the material and relays their exact positions. In this job, a robot is superior to humans.

The researchers at the Fraunhofer Institute for Factory Operation and Automation IFF are experts in robotics – regardless of whether to clean facades, inspect sewer lines or assist humans. Their latest helper is RIWEA, a robot that inspects the rotor blades of wind energy converters. Primarily made of glass fiber reinforced plastics, rotor blades have to withstand a great deal: wind, inertial forces, erosion, etc. Until now, humans have inspected wind energy converters at regular intervals – not an easy job. After all, the technicians must closely examine large surfaces – a rotor blade can be up to 60 meters long – in airy heights. “Our robot is not just a good climber,” says Dr. Norbert Elkmann, Project Manager am Fraunhofer IFF and coordinator of the joint project. “It is equipped with a number of advanced sensor systems. This enables it to inspect rotor blades closely.” Are there cracks in the surface? Are the bonded joints and laminations in order? Is the bond with the central strut damaged?

The inspection system consists of three elements: An infrared radiator conducts heat to the surface of the rotor blades. A high-resolution thermal camera records the temperature pattern and thus registers flaws in the material. In addition, an ultrasonic system and a high resolution camera are also on board, thus enabling the robot to also detect damage that would remain hidden to the human eye. A specially developed carrier system ensures that the inspection robot is guided securely and precisely along the surface of a rotor blade. “it is a highly complex platform with sixteen degrees of freedom, which can autonomously pull itself up ropes,” explains Elkmann. The advantage of this system: It can perform its job on any wind energy converter – regardlesss of whether it is large or small, on land or offshore. The robot always delivers an exact log of the rotor blades’ condition, keeping humans safe and not missing any damage.


Story Source:

The above story is based on materials provided by Fraunhofer-Gesellschaft. Note: Materials may be edited for content and length.


Cite This Page:

Fraunhofer-Gesellschaft. "Robot Inspects Wind Energy Converters." ScienceDaily. ScienceDaily, 22 January 2009. <www.sciencedaily.com/releases/2009/01/090119081348.htm>.
Fraunhofer-Gesellschaft. (2009, January 22). Robot Inspects Wind Energy Converters. ScienceDaily. Retrieved September 2, 2014 from www.sciencedaily.com/releases/2009/01/090119081348.htm
Fraunhofer-Gesellschaft. "Robot Inspects Wind Energy Converters." ScienceDaily. www.sciencedaily.com/releases/2009/01/090119081348.htm (accessed September 2, 2014).

Share This




More Matter & Energy News

Tuesday, September 2, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Australian Airlines Relax Phone Ban Too

Australian Airlines Relax Phone Ban Too

Reuters - Business Video Online (Aug. 26, 2014) Qantas and Virgin say passengers can use their smartphones and tablets throughout flights after a regulator relaxed a ban on electronic devices during take-off and landing. As Hayley Platt reports the move comes as the two domestic rivals are expected to post annual net losses later this week. Video provided by Reuters
Powered by NewsLook.com
Hurricane Marie Brings Big Waves to California Coast

Hurricane Marie Brings Big Waves to California Coast

Reuters - US Online Video (Aug. 26, 2014) Huge waves generated by Hurricane Marie hit the Southern California coast. Rough Cut (no reporter narration). Video provided by Reuters
Powered by NewsLook.com
Chinese Researchers Might Be Creating Supersonic Submarine

Chinese Researchers Might Be Creating Supersonic Submarine

Newsy (Aug. 26, 2014) Chinese researchers have expanded on Cold War-era tech and are closer to building a submarine that could reach the speed of sound. Video provided by Newsy
Powered by NewsLook.com
Breakingviews: India Coal Strained by Supreme Court Ruling

Breakingviews: India Coal Strained by Supreme Court Ruling

Reuters - Business Video Online (Aug. 26, 2014) An acute coal shortage is likely to be aggravated as India's supreme court declared government coal allocations illegal, says Breakingviews' Peter Thal Larsen. Video provided by Reuters
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins