Steady-state responses of mechanical system attached to non-smooth vibration absorber with piecewise damping and stiffness

Meccanica ◽  
2021 ◽  
Vol 56 (2) ◽  
pp. 275-285
Author(s):  
Min Sun ◽  
Wen-hua Hu ◽  
Jun Liu ◽  
Jian-en Chen
Keyword(s):  
Steady State ◽  
Mechanical System ◽  
Vibration Absorber ◽  
Steady State Responses ◽  
State Responses

Steady-State Non-Synchronous and Localized Responses of Tuned Pendulum Vibration Absorbers

1999 ◽  
Author(s):  
Abdallah S. Al-suwaiyan ◽  
Steven W. Shaw
Keyword(s):  
Steady State ◽  
Vibration Absorber ◽  
Circular Path ◽  
Vibration Absorbers ◽  
Centrifugal Pendulum Vibration Absorber ◽  
Existence And Stability ◽  
Steady State Responses ◽  
State Responses ◽  
Small Torque ◽  
Good Agreement

Abstract Previous analytical studies of Centrifugal Pendulum Vibration Absorber (CPVA) systems have focused on the dynamics of either a single absorber mass or multiple absorber masses moving along very special paths. In this paper, an approach is taken that allows one to investigate the dynamics of multi-absorber systems that have quite general paths for the absorber masses, including those used in practice. Of particular interest here are the existence and stability of certain classes of non-unison responses, including those in which the amplitude of a sub-group of absorbers is larger than the expected unison response. It is shown via the method of averaging that these steady state responses may exist and be stable for certain types of paths, including the commonly-used mistuned circular path. Furthermore, it is shown that these responses can co-exist with a stable unison response, even for very small torque levels. The analytical results are compared with numerical simulations and good agreement is found.

Estimating the Audiogram Using Multiple Auditory Steady-State Responses

2002 ◽  
Vol 13 (04) ◽  
pp. 205-224 ◽  
Author(s):  
Andrew Dimitrijevic ◽  
Sasha M. John ◽  
Patricia Van Roon ◽  
David W. Purcell ◽  
Julija Adamonis ◽  
...  
Keyword(s):  
Steady State ◽  
Correlation Coefficients ◽  
Behavioral Threshold ◽  
Behavioral Thresholds ◽  
Sensorineural Hearing Impairment ◽  
Steady State Responses ◽  
Auditory Steady State Responses ◽  
Tonal Stimuli ◽  
Conductive Hearing ◽  
State Responses

Multiple auditory steady-state responses were evoked by eight tonal stimuli (four per ear), with each stimulus simultaneously modulated in both amplitude and frequency. The modulation frequencies varied from 80 to 95 Hz and the carrier frequencies were 500, 1000, 2000, and 4000 Hz. For air conduction, the differences between physiologic thresholds for these mixed-modulation (MM) stimuli and behavioral thresholds for pure tones in 31 adult subjects with a sensorineural hearing impairment and 14 adult subjects with normal hearing were 14 ± 11, 5 ± 9, 5 ± 9, and 9 ± 10 dB (correlation coefficients .85, .94, .95, and .95) for the 500-, 1000-, 2000-, and 4000-Hz carrier frequencies, respectively. Similar results were obtained in subjects with simulated conductive hearing losses. Responses to stimuli presented through a forehead bone conductor showed physiologic-behavioral threshold differences of 22 ± 8, 14 ± 5, 5 ± 8, and 5 ± 10 dB for the 500-, 1000-, 2000-, and 4000-Hz carrier frequencies, respectively. These responses were attenuated by white noise presented concurrently through the bone conductor.

Weighted averaging of steady-state responses

2001 ◽  
Vol 112 (3) ◽  
pp. 555-562 ◽  
Author(s):  
M.Sasha John ◽  
Andrew Dimitrijevic ◽  
Terence W Picton
Keyword(s):  
Steady State ◽  
Weighted Averaging ◽  
Steady State Responses ◽  
State Responses

scholarly journals Stability of Auditory Steady State Responses Over Time

2018 ◽  
Vol 39 (2) ◽  
pp. 260-268 ◽  
Author(s):  
Maaike Van Eeckhoutte ◽  
Robert Luke ◽  
Jan Wouters ◽  
Tom Francart
Keyword(s):  
Steady State ◽  
Steady State Responses ◽  
Auditory Steady State Responses ◽  
State Responses ◽  
Over Time
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