ssc-367 - Ship Structure Committee

QA/Qc
: Quality Assurance/QualityControl
Quality assurance generally refers to the
procedures and methods put into effect to
ensure quality a priori, while quality control
generally refers to reviews and checks afterthe-fact
to implement corrective measures, as
necessary.
: The term random waves is used to characterize
the irregular sea surface and associatedwater
particle kinematics that occur in the ocean.
Analytically random waves are represented as a
summation of sinusoidal waves of different
heights, periods, phases and directions.
REGULAR WAVES
: Regularwaves are unidirectionaland associated
water particle kinematics and sea surface
elevations are periodic.
S-N CURVE
: The S-N curves define the fatigue strength of a
detail/joint by representing test data in an
empirical form to establish a relationship
between stress ranges and the number of cycles
of stress range for fatigue failure.
SEA STATE
: An oceanographicenvironmentwith a wave height
range characterized as a stationary random
process for a specific duration.
SIGNIFICANT WAVE HEIGHT
: A statistic typically used to characterize the
wave heights in a sea state. It is defined as
the average height of the heighestone-third of
all the individual waves present in a sea
state.
xiv