Defining and comparing vibration attributes of AlSi10 foam and CFRP coated AlSi10 foam materials

[摘要] Now, Aluminum materials have begun being manufactured as porous structures and being used with additive composite materials through emerging manufacturing technologies. These materials those porous structures have also begun being used in many areas such as automotive and aerospace due to light-weighted structures. In addition to examining mechanical behavior of porous metallic structures, examining vibration behavior is important for defining characteristic specifications. In this study, vibration attributes belong to %80 porous AlSi10 foam and CFRP coated %80 porous AlSi10 foam are determined with modal analysis. Modal parameters such as natural frequencies and damping coefficient from frequency response functions at the end of hammer impact tests. It is found that natural frequency of CFRP coated AlSi10 foam's is 1,14 times bigger than AlSi10 foam and damping coefficient of CFRP coated AlSi10 foam is 5 times bigger than AlSi10 foam's with tests. Dynamic response of materials in various conditions is simulated by evaluating modal parameters with FEM. According to results of the study, CFRP coating on AlSi10 foam effect vibration damping and resonance avoidance ability positively.

[发布机构] Anadolu University, Faculty of Engineering, Department of Mechanical Engineering, Eskisehir; 26555, Turkey^1;Mehmet Akif Ersoy University, Faculty of Engineering, Department of Mechanical Engineering, Burdur; 15030, Turkey^2

[效力级别] 机械制造 [学科分类] 航空航天科学

[关键词] Characteristic specifications;Damping coefficients;Frequency response functions;Manufacturing technologies;Mechanical behavior;Metallic structures;Porous structures;Vibration behavior