THE DESIGN OF A TEST BENCH FOR WIND BLADES BENDING WITH SMALL DIMENSION

Abstract

The paper presents the design stages of a bench to test wind blades with small dimensions and its verification from the point of view of stresses and the deformations of test bench for five loading cases of the blade. Thus, following a thorough research in the state of the art literature regarding the types of stands used to test the blades, the possibility of the reconversion of a stand from the strength of materials laboratory in the Mechanical Engineering Department, and its adjustment for bending tests have been analyzed. Several versions of the bench have been designed, and the optimum version has been chosen depending on strength, stability and economical accessibility. Bending tests have then been performed by means of finite element analysis. Consequently, the proposed stand meets the design requirements.