Modal analysis method suitable for air chamber support

The invention provides a modal analysis method suitable for an air chamber bracket, which is characterized by comprising the following steps of: 1, establishing a model of the air chamber bracket in creo software; step 2, importing the built model into a cae model; step 3, checking the model which is imported into the cae software; step 4, defining a stent material; 5, finding the mass center position of the air chamber, and defining the mass point of the air chamber; step 6, establishing a remote point of the thrust of the air chamber; step 7, dividing grids, and constraining the support base for analysis; and 8, modal analysis is carried out on a statics analysis result, so that the modal of the air chamber bracket is analyzed through the prestress modal based on the reverse thrust, and the method has the advantages that the problem that force cannot be applied in modal analysis, but the actual working condition of the structure is stressed is solved. 本发明提出了一种适用于气室支架的模态分析方法，其特征在于，包括如下步骤：步骤1、于creo软件中建立气室支架的模