Unlock instant, AI-driven research and patent intelligence for your innovation.

Method of attaching a load sensor to a surface of a rotor blade and rotor blade

A technology of load sensors and rotor blades, which is applied in the direction of wind turbines, instruments, machines/engines, etc. in the same direction as the wind, and can solve problems such as blade damage

Inactive Publication Date: 2011-08-03
SIEMENS AG
View PDF7 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The surfaces of the rotor blades are made of special materials and the blades may be damaged so that defects may appear before or during operation

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
  • Method of attaching a load sensor to a surface of a rotor blade and rotor blade
  • Method of attaching a load sensor to a surface of a rotor blade and rotor blade
  • Method of attaching a load sensor to a surface of a rotor blade and rotor blade

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0050] figure 1 The surface 3 of the rotor blade 1 is shown, which is the inner surface of the rotor blade 1 . For attaching a load cell (such as a load cell operating on the principle of a load cell as shown in US Patent 3,853,000), a set of holes 7 at a distance d from the fixed holes 8 in the load cell 1 (refer to figure 2 ) corresponding to the spacing d 2 Drilled in surface 3. These holes 7 are equipped with threaded inserts 9 . The threaded insert 9 is embodied as a bushing which is threaded on its inner side 11 and comprises a corbel 10 at its top longitudinal end.

[0051] On the left hand side the bushing 9 being inserted into the hole 7 can be seen, while on the right hand side the bushing 9 has been positioned in the hole 7 but not yet in its final position. This final position will be reached when the corbel is in contact with the surface 3 .

[0052] This situation can be found in figure 2 It can be seen in FIG. 2 that both bushes 9 are in their final pos...

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

PropertyMeasurementUnit
diameteraaaaaaaaaa
Login to View More

Abstract

The present invention relates to a method of attaching a load sensor to a surface of a rotor blade and a rotor blade, wherein the load sensor includes a support having a plurality of strain gauges on the surface (3) of the rotor blade (1). The method of attaching a load sensor (5, 5a, 5b, 5c, 5d, 5e) according to the invention comprises the steps of producing a set of holes (7) with a predefined distance (d) between the holes (7), providing threaded inserts (9) in the holes (7), and inserting bolts (13) through the load sensor (5, 5a, 5b, 5c, 5d, 5e) into the threaded inserts (9). The invention also relates to a rotor blade (1) with a load sensor (5, 5a, 5b, 5c, 5d, 5e).

Description

technical field [0001] The invention relates to a method of attaching a load sensor to the surface of a rotor blade, said load sensor comprising a support with a plurality of strain gauges and a set of fixing holes at a predetermined distance. The invention also relates to a rotor blade with such a load sensor attached to the surface of said rotor blade. Background technique [0002] Rotor blades, and more specifically wind turbine rotor blades, require monitoring of the forces that stress the blades. The aim is to be able to control the static and / or dynamic vibratory loads on the rotor blades to find out if this load or the sum of the dynamic loads becomes too large an unlikely event occurs where the rotor blade (or a part thereof) due to wear must Measures are taken in case of replacement, or preferably continuous control of the rotor blades of the wind turbine, to avoid replacement of the rotor blades or any other components of the wind turbine such as gearboxes, pitch ...

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 Applications(China)
IPC IPC(8): F03D11/04F03D1/06G01L1/00B26F1/00
CPCY02E10/723G01L1/2287Y02E10/722F03D11/0091F05B2270/808Y02E10/721F03D17/00Y02E10/72Y02P70/50Y10T29/49963
Inventor O·J·D·克里斯滕森S·O·林德J·A·米克尔森S·M·佩德森
Owner SIEMENS AG