Loading…
This event has ended. Visit the official site or create your own event on Sched.
Welcome to ICSV26!
Back To Schedule
Wednesday, July 10 • 15:30 - 15:50
EFFICIENT FINITE ELEMENT SIMULATIONS TO COMPUTE GEAR PUMP NOISE FROM VIBRATION EXPERIMENTAL MEASUREMENTS

Log in to save this to your schedule, view media, leave feedback and see who's attending!

Feedback form is now closed.
A hybrid numerical-experimental integrated approach is presented to obtain accurate predictions of the noise field emitted by an 8.5 cc/rev external gear pump. Vibration measurements provided FFT (Fast Fourier Transform) acceleration spectra (Pulse code) in a few specific positions of the external gear pump casing for some working conditions. Structural harmonic analyses were performed in order to estimate the dynamic response of the finite element model. The noise field radiated by the gear pump was simulated by means of finite element vibro-acoustic simulations involving the structural dynamic response as external boundary condition. Several acoustic numerical methods were investigated in the commercial software Simcenter 3D, such as the classical FEM (Finite Element Method), the more elaborated FEMAO (Finite Element Method with Adaptive Order), and the ATV (Acoustic Transfer Vector) approach. Sound power calculations based on sound intensity measurements, as well as sound pressure measurements around the pump casing were performed for validation purposes. The comparisons between numerical and experimental results confirmed the proposed hybrid approach to offer a good compromise between noise prediction accuracy and reduction of experimental modelling requirements. The accuracy and the efficiency of the aforementioned numerical methods are also assessed.

Moderators
avatar for Simon Jones

Simon Jones

Associate Professor, Rose-Hulman Institute of Technology
Professional interests include undergraduate engineering education, finite element modeling, ground-borne vibrations, vibrations of musical instruments, and dynamics of toys.
GM

Guilhem Michon

Professor, ISAE-SUPAERO

Authors

Wednesday July 10, 2019 15:30 - 15:50 EDT
St-Laurent 7
  T07 Struct. dyn. & nonlin. vib., RS03 Struct ac & vibr

Attendees (4)