Validation to TRL6 is to be achieved through coupon tests on representative hardware in a bespoke environmental chamber, subjecting the coupons to combined heat and random vibration
loading, supported by full size PCBs integrated and tested at engine level.
Young adult males completed a set of random vibration
and nonvibration exercise bouts whilst squatting vibrating plate.
is defined as non-deterministic, which means that future behavior cannot be predicted precisely.
Next the performance of MEMS sensor was validated through the acquisition of a random vibration
signal generated on a vibrating table.
The following system level tests were carried out to qualify for the launch: sine vibration, random vibration
, shock, thermal cycling, and thermal vacuum.
3 utilizes four pneumatically-actuated vibration hammers providing 6 dof random vibration
with x,y,z axis and roll, pitch and yaw rotation.
Lockheed Martin (NYSE: LMT) and NASA engineers said they have verified the Orion spacecraft successfully passed an important environmental test called multi-point random vibration
The degrees of freedom considered for vehicle system's vertical random vibration
study and lateral random vibration
study are listed respectively in Tables 1 and 2.
Single point or frequency sweep loading is available, and techniques are also available to equivalence random vibration
to harmonic vibration.
The muscular activity level in the forearms increases in response to random vibration
transmitted to the bicycle to control handlebar movements.
Readers are assumed to have some background in structural analysis, structural dynamics, probability theory, and random vibration
For example, the higher stress on the lines due to the higher startup motor torque - a transient problem; the impact force of liquid refrigerant slugging from the compressor at certain startup conditions - a liquid hammer problem; and the fatigue risk during shipping - a random vibration