The acquisition system was tested through a series of experiments on industrial blow-molding machines under different conditions, such as die temperature, blowing pressure, and blow mold material in extrusion blow molding, and the kind of heating lamps and their voltage settings in SBM.
Equilibrium and periodic solutions are explored with respect to the blowing pressure, with focus on amplitude and frequency evolutions along the different solution branches, as well as "jumps" between periodic solution branches.
The present paper aims at analyzing the consequences of this choice on the power radiated by a hole, which depends on the coupling between the acoustic resonator and the excitation mechanism of the self-sustained oscillation, thus on the blowing pressure.
Every pitch on the flute has its own standard fingering with an appropriate blowing pressure.
"We have good footballers in this side but we need maturity as we are undoing all our good work by blowing pressure situations".
In woodwind instruments such as a flute, producing a higher-pitched tone than a standard tone by increasing the blowing pressure is called overblowing, and this allows several distinct fingerings for the same notes.
However, it is possible to generate a tone that is higher in frequency than the usual tone by increasing the blowing pressure [2]; this is referred to as "overblowing" or "harmonic" by flutists.
Table 1 Selected fingering set Played note Fingerings C5 C5, C5 D5 D4, D5 C6 C4, C6, F4 C 6 C#4, C#6, F#4 E6 A4, C4, E4, E6 G6 C5, C5, E♭4, G4, G6 Played note is a pitch of the note, and each pitch is played with different fingerings by altering only the blowing pressure.
An important measurement requirement (acoustic cross-flow as an irrotational potential flow reciprocating sinusoidally) from the vortex-sound theory is carefully realized when the pipe is driven with low blowing pressures of about 60 Pa (jet velocities of about 10 m/s).
The blow out pressure should always remain below the maximum operating pressure of the lowest pressure rated component in your system.
