Vibration Analysis of High-Pressure
Pneumatic Compressor
Ramona Nagy, Remus Stefan Maruta, and Karoly Menyhardt
Abstract Pressure generators are machines used to compress atmospheric air to
the desired ratio suitable for various applications. Seldom these pressure values rise
above 12–16 bars, but in such cases, special devices must be used, with single or dualstage compressor chambers. A high-pressure pneumatic compressor (over 60 bar)
was commissioned to fill rubber hoses for various mechanical tests. Due to the design
of the compressor, a series of unwanted vibrations occurred from the compression
room, actuator, transmission, and forced cooling system. The analysis and correlation
of these vibrations are presented in the following paper.
1 Introduction
Pneumatic compressors are readily available devices that can pump air at 8–10 bars.
Above these values, commercial offers have a steep drop. Most compressors have
a single-stage compressor chamber to create the required pressure but, for higher
values, a second stage compression chamber is required. Compressors can have
multiple number of stages, delivering a maximum pressure proportional with this
number [1]. Normally, maximum compression ratio of 5 is realized in single-stage
compressors for pressures bellow 5 bar. For compression ratio of more than 5,
multistage compressors are used.
In the case of compressors, vibrations are undesirable, wasting energy, destroying
equipment, and creating unwanted sound. Such vibrations are caused by imbalances
in the rotating parts, friction, meshing of gear teeth, or resonance. Forced vibration
R. Nagy · R. S. Maruta · K. Menyhardt (B)
Politehnica University Timisoara, Timisoara, Romania
e-mail: karoly.menyhardt@upt.ro
R. Nagy
e-mail: ramona.nagy@upt.ro
R. S. Maruta
e-mail: remus.maruta@upt.ro
© Springer Nature Switzerland AG 2021
N. Herisanu and V. Marinca (eds.), Acoustics and Vibration of Mechanical
Structures—AVMS 2019, Springer Proceedings in Physics 251,
https://doi.org/10.1007/978-3-030-54136-1_41
403
Pneumatic Compressor
Ramona Nagy, Remus Stefan Maruta, and Karoly Menyhardt
Abstract Pressure generators are machines used to compress atmospheric air to
the desired ratio suitable for various applications. Seldom these pressure values rise
above 12–16 bars, but in such cases, special devices must be used, with single or dualstage compressor chambers. A high-pressure pneumatic compressor (over 60 bar)
was commissioned to fill rubber hoses for various mechanical tests. Due to the design
of the compressor, a series of unwanted vibrations occurred from the compression
room, actuator, transmission, and forced cooling system. The analysis and correlation
of these vibrations are presented in the following paper.
1 Introduction
Pneumatic compressors are readily available devices that can pump air at 8–10 bars.
Above these values, commercial offers have a steep drop. Most compressors have
a single-stage compressor chamber to create the required pressure but, for higher
values, a second stage compression chamber is required. Compressors can have
multiple number of stages, delivering a maximum pressure proportional with this
number [1]. Normally, maximum compression ratio of 5 is realized in single-stage
compressors for pressures bellow 5 bar. For compression ratio of more than 5,
multistage compressors are used.
In the case of compressors, vibrations are undesirable, wasting energy, destroying
equipment, and creating unwanted sound. Such vibrations are caused by imbalances
in the rotating parts, friction, meshing of gear teeth, or resonance. Forced vibration
R. Nagy · R. S. Maruta · K. Menyhardt (B)
Politehnica University Timisoara, Timisoara, Romania
e-mail: karoly.menyhardt@upt.ro
R. Nagy
e-mail: ramona.nagy@upt.ro
R. S. Maruta
e-mail: remus.maruta@upt.ro
© Springer Nature Switzerland AG 2021
N. Herisanu and V. Marinca (eds.), Acoustics and Vibration of Mechanical
Structures—AVMS 2019, Springer Proceedings in Physics 251,
https://doi.org/10.1007/978-3-030-54136-1_41
403