... the shifted and windowed snapshots using the sparsity promoting Dynamic Mode Decomposition algorithm. modal analysis gas dynamics supersonic flows Proceedings of the ASME 2022 International Mechanical Engineering Congress and Exposition IMECE2022 October 30-November 3, 2022, Columbus, Ohio...

..., the proposed method can also reveal dynamic responses of a tensegrity structure in a higher frequency domain by only using a small number of internal terms. tensegrity structure nonlinear dynamics vibration analysis modal analysis spatial discretization method Proceedings of the ASME 2022...

... against those obtained from time transient finite element simulations that leverage geometric models reconstructed from microcomputed tomographic scans. guided waves transcranial ultrasound parameter identification modal analysis vibration Proceedings of the ASME 2021 International Mechanical...

... experience high-amplitude vibrations in response to ultrasonic excitation. These methods and results are useful for assessing how a wide variety of devices, including communications equipment, might produce biological effects. ultrasound modal analysis finite element model Proceedings of the ASME...

.... The fusion of AMD and modal analysis adds adaptivity and flexibility into data processing and helps automate the modal analysis process. The comparative study will provide insights on the advantages and disadvantages of the AMD methods as to the application of modal analysis. In this comparative study...

... the proposed method. modal analysis structural dynamics structural health monitoring Proceedings of the ASME 2021 International Mechanical Engineering Congress and Exposition IMECE2021 November 1-5, 2021, Virtual, Online IMECE2021-68740 OUTPUT-ONLY STRUCTURAL SYSTEM IDENTIFICATION BASED...

.... As an initial step, the vibrational acceleration of the seat was measured and its modal analysis was performed. We measured 22 points and 10 points of vibrational acceleration in three directions (vertical, longitudinal, and lateral) of the seat and its occupant, respectively, in a commercial vehicle. We...

... ultrasound modal analysis finite element model heterodyne ULTRASONIC ACOUSTIC HETERODYNE TRANSMISSION INTO THE HUMAN AUDITORY AND VESTIBULAR SYSTEMS Christopher M. Dumm1, Anna C. Hiers1, Jeffrey S. Vipperman1,2, George E. Klinzing3, Carey D. Balaban4 University of Pittsburgh Pittsburgh, PA ABSTRACT...

... drive with anti-symmetry option is considered for the Finite element study to reduce the analysis time. Modal analysis is performed to extract the fundamental frequencies. A sufficient number of modes are extracted to capture at least 80 percent of total mass in each direction. Then, a harmonic analysis...

... such as quality control on production lines and monitoring of deposit buildup in pipes. design of experiments response surface modeling regression modeling modal analysis damage detection condition monitoring A DESIGN OF EXPERIMENTS APPROACH TO IDENTIFYING DAMAGE IN STRUCTURES USING MODAL FREQUENCY...

... the operating deflection shape method. In this paper, vibration characteristics of the in the boring bar is obtained by both modal analysis and operating deflection shape methods and the results are compared. The results show that differences exist between the two conditions that can be small or large...

... are designed for pecial problems so that they could substitute a huge number of onventional elements in modeling and analysis. In this study a ew cylindrical superelement is incorporated to model the unctionally graded cylinders, and modal analysis is performed. he advantage of this cylindrical superelement...

... to search a joint design satisfying maximum natural frequency and minimum modal strain energy conditions for each natural bending frequency and mode shape. Adhesive Single lap joint Composite Modal analysis Natural frequency Finite element method Genetic Algorithm Artificial Neural Network...

..., such as acoustic noises. In order to prevent these disturbances and decrease environmental noise pollutions, it is very necessary to study them carefully. To reach this purpose in this work first, radial loads of the SRM are investigated and then modal analysis is performed to obtain natural frequencies and mode...

... vibration absorber for passive vibration control of a cantilever composite plate is investigated. Finite element piezoelectric modal analysis is performed. Models based on placing piezoelectric vibration absorbers at five different locations on the surface of the plate and incorporating piezoelectric...

... of models has been developed. In this paper, a theoretical model, using classical modal analysis methodology, is presented. The flexible beam is modeled in a standard way and the hydraulic servo drive is modeled as a boundary condition. Only normal modes will be investigated. This approach allows...

.... Amplitude reduction around 30% and 25% and Q- factor reduction up to 15% and 10% are obtained in the bending and torsion modes, respectively. In addition, some amount of damping is observed at higher modes as well. Keywords: Piezoelectric, Modal analysis, Non-Linear, Damping, Shunt circuit Bicos [2...

... 28 03 2008 This paper presents a procedure to derive reduced-order nonlinear modal equations of circular cylindrical shells. Modal analysis is applied to the nonlinear finite element equation by using base vectors obtained by the finite element analysis. Reduced-order modal equations...

... testing), the damped natural frequencies and mode shapes of the self-rigidizing torus can be discerned in the frequencies and mode shapes of the self-rigidizing torus can be discerned in the frequency bandwidth of interest, 1–12 Hz. Modal Analysis Self-Rigidizing Torus Inflatable Mode Shapes...

... Poisson ratios 12, 23, 13. Only E1, E2, G12 and 12 are used for plate constitutive equations, To obtain these constants it is possible to use nondestructive testing (NDT). One of NDT is the experimental modal analysis of some specimens in combinations with an analytic model study. Usually, layered...