From there, engineers can subject their products to several environmental stresses, including temperature and power cycling, harmonic vibration
, mechanical shock, and bending, to help ensure manufacturability and maximize the life of a product.
Abstract: This paper aims to present a reliability performance assessment of electronic packages subjected to harmonic vibration
loadings by using a statistical factorial analysis technique.
 investigated the effect of dummy solder balls on the fatigue life of a solid-state drive (SSD) under harmonic vibration
This in turn will change the harmonic vibration
pattern of your barrel.
During the tilting of the tower before it fell on the ground, a significant harmonic vibration
was recorded on four seismic stations at a distance of 70 m to 120 m from the tower.
The small print on the box says: "This revolutionary training technique delivers harmonic vibration
to the body, stimulating a natural reflex."
The fans and motors were put through a harmonic vibration
check to determine if any speeds needed to be locked out of the system between 1800 and 3600 rpm (VFD frequency between 30 and 60 Hz).
Single point or frequency sweep loading is available, and techniques are also available to equivalence random vibration to harmonic vibration
To simplify the vibration form, the simple harmonic vibration
provided by an electromagnetic experiment test stand was adopted to simulate bridge vibration.
It is known that a harmonic vibration
of frequency co and displacement amplitude [d.sub.max], results in a maximum acceleration [a.sub.max] calculated as follows :
In sections on vibrations systems, principles and guidelines for damping control, and the design of supplemental damping, they discuss such topics as the free and harmonic vibration
of single-degree-of-freedom systems, linear proportionally damped multi-degree-of-freedom systems, principles of damper design, and nonlinear damping.
"This set up a nice harmonic vibration
in the ground which was recorded in our nearby borehole seismometers."