Oscillations, Waves, and Interactions - GWDG

number of publications per 5 years
10 000
5 000
2 000
1 000
500
200
100
50
20
10
5
2
1
Active control of sound and vibration 127
1927−31
1932−36
1937−41
1942−46
1947−51
doubling every 5 years
1952−56
1957−61
1962−66
5−year period
Figure 8. Five-year cumulants of ANVC publications, based on the author’s data files.
catastrophic consequences.
The general interest in active control of noise and vibration has been steadily
increasing, a fact which can also be concluded from the growing number of textbooks,
special conferences and journal papers per year. Based on the author’s collection of
more than 12 000 references on active control of sound and vibration [219,220], Fig. 8
shows a histogram of the number of publications grouped in five-year periods. An
exponential increase is observed from the 1950s through the early 1980s with doubling
every 5 years, followed by further growth at reduced pace (approximately doubling
in ten years). There are nearly twice as many papers on active vibration control than
on active sound field control, and there are about 7% patent applications. This is
relatively high for a research topic and proves the considerable commercial interest.
1967−71
1972−76
1977−81
1982−86
1987−91
1992−96