Increasing efficiency of turbomachinary can be achieved by applying abradable seals to minimize the clearance between the rotating blades and the casing. A finite element method model is developed to conduct a thermal-mechanical contact analysis for the blade/seal system. The model considers contact, friction, and heat conduction between the blade tip and the seal as well as heat convection between the blade/seal system and the environment, thus it simulates a heat generation/heat transfer process during the rubbing. The effects of elastic modulus, film coefficient and friction coefficient on the temperature at the blade/seal contact interface are analyzed and the results are discussed.
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