ROTOR BLADE TEST RIG 115m+ AND STRONG FLOOR 135 m x 26 m
For testing of rotor blades 115m+
The rotor blade test rig is used for static and dynamic testing of newly developed rotor blades for wind turbines.
During the static test, the rotor blade is bent to such an extent that the max. calculated loads are introduced into the blade.
The static force is applied to the blade by means of ropes and / or winches or cylinders. A 115 m blade bends approx. 45 m at the tip under max. load.
In order to be able to represent this deflection, it is necessary to create sufficient distance from the tip of the blade to the ground.
This is done by tilting the hub up to 12.5°. As a result, the rotor blade is tilted and the distance to the ground is considerably increased, thus enable static testing.
During dynamic testing the blade is subjected to up to 2 million load cycles at the natural frequency. In this way, the required long-term strength and, accordingly, the operating life can be simulated.
The hub can be tilted into different positions according to the requirement of dynamic testing.
In order to be able to test a rotor blade in its two loading directions, it is necessary to rotate the blade along its longitudinal axis.
With existing rotor blade test rigs, this requires the blade to be dismantled, manually rotated with the crane and remounted.
It is a very time consuming procedure that can extend the test cylus for several days or weeks, depending on the prevailing wind.
This unique rotor blade test rig is not only one of the world's largest but also features the tilt and turn function, an absolute novelty.
TECHNICAL DATA
- Weight test stand: 850 t
- Weight rotor blade: max. 100 t
- approx. 50 t of fasteners such as screws
with diameters from M30 - M90 - Completely developed and manufactured in Germany
- 360° turning device for rotor blade
- 2 pieces tipping cylinders with 250 tons
tractive force each - Dimensions: 8.000 x 11.000 x 14.000 mm
- 801 days from commissioning of the test
bench to acceptance (2 years and 71 days) - 7 months installation time with up to 8 technicians
HEAVY-DUTY STRONG FLOOR AS THE BASIS
FOR THE ROTOR BLADE TEST RIG
- Length: ~ 135 m
- Width: ~ 26 m
- Quantity concrete: ~ 9.600 t
- Quantity reinforcing steel: ~ 720 t
- Length T-rails: 735 m
- Number of anchorage points M80: 289 pieces
CONTACT
Please contact our sales department:
info@cfm-schiller.de or +49 2471 1246 0
Rotor blade test rig for XXL wind turbines
For static and dynamic testing of rotor blades up to 135 metres
CFM Schiller developed and manufactured a high-precision clamping device for static and dynamic testing of rotor blades up to 135 metres in length for a Chinese customer. The main steel components were manufactured by CFM in Germany, while the concrete structure was built in China under CFM's construction management.
CFM has been a specialist in the design and construction of rotor blade test rigs for wind turbines for more than 15 years. We combine our expertise in the field of foundations with precision in mechanical engineering.
The test rig is impressive in its dimensions:
- 17 x 12 x 13 m (L x W x H)
- 4,300 tonnes of reinforced concrete
- Special horizontal anchoring system for fastening the 200 mm thick flange plates
In addition to planning the rotor blade mounting device, we also engineered the upstream tensioning fields with special CFM T-slot rails and supplied and installed the T-slot rails
This solution enables the precise testing of rotor blades for the next generation of wind turbines – and thus actively contributes to the further development of sustainable energy sources.
Our claim: Highest quality, maximum safety and individual solutions for complex challenges. With decades of experience in the development and manufacture of test benches and special constructions, we are your partner for projects that shape the future.
ROTOR BLADE TEST RIG
Extensive and significant testing of the wind power systems become a fundamental aspect of future development processes in this industry. Detailed long-term measurement of loads during operation are the base to define testing specifications. Future testing of wind power systems will become increasingly realistic.
Today and in the future, wind power plays a continuously increasing role in the power generation worldwide. Rapidly growing demands for plant reliability are caused by – amongst others – steadily increasing hub and component sizes, installation at poorly accessible locations, numerous small wind turbines in private households, expectation of a long service life, and large maintenance intervals.
CFM Schiller is the ideal partner for these challenges due to our years of versatile experience in design of test rigs, especially for large-scale applications. Testing systems for the automotive and aviation industry, agricultural and construction machinery, in power plants, on oil platforms, and for many research institutions are carefully calculated, designed, manufactured, and installed by CFM Schiller. With regard to the continuous expansion of our know-how, it is only logical for us at CFM Schiller to apply our "Everything from one source" approach combined with our manufacturing quality to the broad field of wind power technology.
