Formable Split Skin Mounting Structure
A mounting structure, separate technology, applied in the field of plastic separate skin mounting structure, can solve the problems of inability to accurately simulate the aerodynamic shape of the model, limit the vibration of the model, and uncertain stiffness and damping
Active Publication Date: 2020-04-28
TONGJI UNIV
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Problems solved by technology
However, the continuum model cannot avoid the problem of inconsistency in the simulation of axial stiffness and bending torsional stiffness. The space beam model can solve this problem by using the layout of longitudinal and horizontal beams of different sizes; at the same time, although the traditional space beam model uses The tensioned skin is pasted continuously to simulate the aerodynamic shape. However, the skin in the form of a tensioned membrane cannot accurately simulate the aerodynamic shape of the model. At the same time, it introduces uncertain stiffness and damping to the model and limits the vibration of the model.
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[0016] The present invention will be further described below in conjunction with the embodiments shown in the accompanying drawings.
[0017] combine figure 1 and figure 2 As shown, the present invention provides a separate skin for the vibration model of a three-dimensional space structure with a discrete space grid as the skeleton, including the design, manufacture and installation of the separate rigid skin. specifically:
[0018] According to the shape of the space structure, the skin 1 is preliminarily designed so that each skin 1 meets the line shape of the outer surface of the tower 2. At the same time, in order to ensure that no contact or collision occurs between the skins 1 during the vibration process, the two Keep a spacing of 0.5-2mm between the skins (the selection of the spacing depends on the processing and installation accuracy). The material selected for skin 1 must have sufficient rigidity, and local excessive deformation cannot occur in wind tunnel expe...
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The invention provides a plastically detachable sheath mounting structure comprising a plurality of sheaths which coat a space truss according to outer surface shapes. The space truss comprises a plurality of grid rod members. Each sheath is connected to an intersection of the grid rod members. The sheath mounting structure avoids the mutual interference between the sheaths during the vibration of the structure, reduces the uncertain and unfavorable effect of the continuous sheaths on the structure, makes a structural response simulated in a laboratory closer to a designed model, and provides a more accurate basis for structural design.
Description
technical field [0001] The invention relates to a plastic and detachable skin installation structure. Background technique [0002] At present, there are mainly two types of aeroelastic models for cooling tower structures in the world: continuum model and space beam equivalent vibration elastic model. However, the continuum model cannot avoid the problem of inconsistency in the simulation of axial stiffness and bending torsional stiffness. The space beam model can solve this problem by using the arrangement of longitudinal and horizontal beams of different sizes; at the same time, although the traditional space beam model uses The tensioned skin is pasted continuously to simulate the aerodynamic shape. However, the skin in the form of a tensioned membrane cannot accurately simulate the aerodynamic shape of the model, and at the same time introduces uncertain stiffness and damping to the model and limits the vibration of the model. Contents of the invention [0003] In ord...
Claims
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IPC IPC(8): G09B25/02
CPCG09B25/02
Inventor 赵林赵诗宇陈旭葛耀君
Owner TONGJI UNIV