Design, fabrication and vibration analysis of a lightweight head expander for a high frequency electrodynamic shaker
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Hüseyin Dal
Abstract
Head expanders provide an important interface connection between the armature of a vibration shaker and test objects. The most important parameters are the mass of the test specimen and the resonance frequency of the head expander. For that reason determining the natural frequency of the head expander is essential. Moreover, the mass of the head expander had to be lightweight. A head expander for an LDS V450 model electrodynamic vibration shaker was designed and manufactured using AZ91D magnesium alloy to be as light and rigid as possible. The natural frequencies, mode shapes and vibration characteristics of the head expander were determined by performing structural, FE modal and harmonic analyses as well as vibration measurements. Additionally, an experimental modal test was performed and the equipment was subjected to a white noise vibration test to verify all the results. Analyses indicated that the head expander manufactured was light, rigid, durable and suitable for vibration tests.
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© 2019, Carl Hanser Verlag, München
Articles in the same Issue
- Inhalt/Contents
- Contents
- Fachbeiträge/Technical Contributions
- Stability of structured sheet metals during buckling
- Oxidation behavior of 29Cr-8Ni ferritic stainless steel in air flow at 1173 and 1273 K
- Microstructure and mechanical properties of friction stir welded dissimilar 5754-H111-6013-T6 aluminum alloy joints
- Investigation of heterogeneous ratcheting of a GTAW welded joint for primary coolant piping
- Determination of the modulus of linearity of acrylic bases and acrylic teeth
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- Design, fabrication and vibration analysis of a lightweight head expander for a high frequency electrodynamic shaker
- Influence factors of pop-in in the nanoindentation micromechanical property measurement of gas-bearing shale
- Setup for testing the vibration-based loosening of pre-loaded bolted joints
- Influence of graphene oxide on the static and dynamic mechanical behavior of compatibilized polypropylene nanocomposites
- Influence of the moisture state of recycled fine aggregate on the impermeability of concrete
- Mechanical properties of 16 different FDM-plastic types
- Effects of various vitamin C amounts on the green synthesis of reduced graphene oxide
- Validation of the dynamic response of the HMA layer in an inverted pavement measured by strain foils
Articles in the same Issue
- Inhalt/Contents
- Contents
- Fachbeiträge/Technical Contributions
- Stability of structured sheet metals during buckling
- Oxidation behavior of 29Cr-8Ni ferritic stainless steel in air flow at 1173 and 1273 K
- Microstructure and mechanical properties of friction stir welded dissimilar 5754-H111-6013-T6 aluminum alloy joints
- Investigation of heterogeneous ratcheting of a GTAW welded joint for primary coolant piping
- Determination of the modulus of linearity of acrylic bases and acrylic teeth
- Effect of temperature related processing parameters on the interface bonding strength of automotive overmolding injection parts
- Design, fabrication and vibration analysis of a lightweight head expander for a high frequency electrodynamic shaker
- Influence factors of pop-in in the nanoindentation micromechanical property measurement of gas-bearing shale
- Setup for testing the vibration-based loosening of pre-loaded bolted joints
- Influence of graphene oxide on the static and dynamic mechanical behavior of compatibilized polypropylene nanocomposites
- Influence of the moisture state of recycled fine aggregate on the impermeability of concrete
- Mechanical properties of 16 different FDM-plastic types
- Effects of various vitamin C amounts on the green synthesis of reduced graphene oxide
- Validation of the dynamic response of the HMA layer in an inverted pavement measured by strain foils