Load-adaptive structural elements

<strong>Background</strong><br>

Structural elements which are deformed under load occur in many fields of technology. Conventional resilient elastic deformation behavior of structural elements is a result of a force action which correlates with the direction of the force acting on the structural element. For some design requirements a shape change of the component in a direction opposite to the force action direction is desirable. <br><br> <strong>Technology</strong><br> This is a load-adaptive element comprising at least one trapezoidal, elastically movable four-bar hinge. The four-bar hinges have recesses for forming hinge points that are produced by weak points in the material and embody elastic bending hinges and slot-like recesses connected to the hinge points. Successive, mutually spaced four-bar hinges form a multi-hinge mechanism. Shape change behavior in the component is generated, which is anisotropically resilient elastic and directed counter to the action of the force. It can be used for components which are loaded on one side or on alternate sides. <br><br> <strong>Benefits</strong><br> <ul> <li>No need for active control </li> <li>Low cost passive control </li> <li>Multi-Hinge mechanism with anisotropically resilient-elastic shape change behavior </li> </ul><br> <strong>IP Rights</strong><br> German patent application (12/2009)<br> EP und US patent application <br><br> <strong>Origin</strong><br> Beuth Hochschule für Technik Berlin</p>

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