Research on the Hot Mode Test Method of Hypersonic Missile Rudder Surface
The modal frequency and mode of the rudder surface of hypersonic missile under high temperature thermal load are studied.The thermal modal characteristics of the missile's rudder surface are studied by combining the thermal modal test and finite element analysis based on laser vibration measurement technology,The thermal mode finite element analysis of the rudder surface is carried out,A set of thermal mode test system is designed to carry out thermal mode test.The laser vibration measurement technology is applied to vibration response measurement.The high temperature heating box of quartz lamp is designed and made,the water-cooled vibration rod is designed and made,and the mobile platform for laser vibration measurement is designed.By means of finite element simulation and experiment,The modal frequencies and modes of the rudder structure under different high temperature conditions are obtained,The variation rules of modal frequency and mode are analyzed,Good results have been obtained.
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