High-efficiency test device for simulating traveling wave vibration of shrouded blade

• Main Authors: WANG YANRONG, DU CHENHONG, JIANG XIANGHUA, WEI DASHENG
• Format: Patent
• Language: Chinese; English
• Published: 03.11.2023
• Subjects: MEASURING; PHYSICS; TESTING; TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR

The invention discloses an efficient test device for simulating traveling wave vibration of a shrouded blade, a plurality of test pieces with structural parameters similar to those of an actual shrouded blade are designed and are circumferentially arranged and combined to form a whole, and the shroud part forms a cylinder structure. Meanwhile, a connecting block is designed at the end part of the blade root of each test piece, and the whole test piece is mounted on the adapter plate through the connecting block and is further mounted on the test bed through the adapter plate; and the bearing force between the blade crown bearing surfaces is equal to the bearing force between the blade crowns of the actual shrouded blade. When a traveling wave vibration test is carried out, simulation of actual blade traveling wave vibration can be realized by applying excitation with a specific phase difference on each blade body with a crown. 本发明公开一种高效的模拟带冠叶片行波振动试验装置，设计多个与实际带冠叶片结构参数近似的试验件，周向排列组合形成整体，且叶冠部分构成圆筒结构。同时各试验件的叶根端部设计