Solar heliostat aeroelastic model and design method thereof

Abstract

The invention relates to the technical field of aerodynamic models, and discloses a solar heliostat aeroelastic model and a design method thereof, which are different from a method for simulating rigidity and aerodynamic configuration by using a framework and a coat in a traditional aeroelastic model, and perform rigidity simulation according to stress characteristics of different rod pieces; the designed aeroelastic model comprises a mirror board, a plane purline, supporting trusses, an anti-torsion steel beam and a stand column, the plane purline is fixed below the mirror board, the supporting trusses are fixed on the plane purline at intervals, the anti-torsion steel beam penetrates through and fixes the supporting trusses, and the anti-torsion steel beam is arranged at the top end of the stand column. According to the aeroelastic model of the solar heliostat and the design method of the aeroelastic model, the reduced scale requirements of the structure appearance and the structure quality of the heliostat can be met at the same time, so that the multi-order frequency of the heliostat structure is effectively simulated, the overall stability and the low damping ratio are also ensured in the manufacturing process of the model, the heliostat wind tunnel test device is practical in operation in wind tunnel tests of heliostats.

Description

technical field [0001] The invention relates to the technical field of aerodynamic models, in particular to an aeroelastic model of a solar heliostat and a design method thereof. Background technique [0002] As an important part of the solar heliostat power station, the heliostat needs to accurately reflect the sunlight to the heat collector, so it has high requirements on its working stability, and cannot produce large vibrations, and it is also under the action of wind load However, since the heliostats are usually built on open terrain, they will be subjected to relatively strong wind loads and are more likely to generate severe vibrations. Therefore, wind tunnel tests are required to study them. [0003] In the wind tunnel test, when designing the aeroelastic model, the stiffness of the structural components is generally adjusted to match the frequency of the model with the actual building. Stiffness simulation, for buildings and bridges, this method is relatively simp...

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Problems solved by technology

[0004] The purpose of the present invention is to: for the design method of the aeroelastic model in the prior art, the simulation of the rigidity and aerodynamic shape of the model is completed by applying the skeleton and the coat, and there is a problem that it is not suitable for the design of the aeroelastic model of the heliostat, providing An aeroelastic model of a solar heliostat and its design method are proposed. It is not necessary to complete the aerodynamic shape of the model through the coat, and the stiffness is simulated according to the force characteristics of different rods, and at the same time, it can meet the contraction of the structural shape and structural quality of the heliostat. Therefore, the multi-order frequency of the heliostat structure is effectively simulated, and the wind tunnel test of the heliostat has operational practicability

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