When an FM's minimum force is set to exceed the maximum static frictional force, systems are then free from static friction.
Field observations conducted on oil platforms in the Bohai Sea revealed that the offshore jacket structures, which can withstand the maximum static ice force, might suffer from severe vibrations when ice sheets pass through the legs of the structure.
This is because Fig. 6 also includes the static friction before it reaches the maximum static friction force.
(11) (lfloor rfloor) is a floor function where d is a design parameter that should be greater than the maximum static frictional force.
If we can directly monitor the direction of the operating force, the haptic voltage can be cut before the operating force reaches the maximum static friction; the resulting sticky force would be much smaller.
A general definition of thunderstorm response spectrum is introduced, which allows a straightforward evaluation of the maximum structural response and the equivalent static force.
The direction of the movement, which can be obtained from the position sensor for the pad, however, has a limited effect in solving the sticky-wall problem, since the movement occurs after the operating force overcomes the maximum static friction under the haptic voltage application.
The ESF in the first (stiffness-based) approach was defined as the static force producing the same maximum displacement that is produced by a vehicle collision at the point of impact.
BMI = body mass index, ERT = enzyme replacement therapy, FVC = forced vital capacity, FEV1 = forced expiratory volume in one second, MIP = maximum static inspiratory pressure, MEP = maximum static expiratory pressure.
Results indicated that in order to achieve maximum hardness and minimum surface roughness simultaneously, ultrasonic vibration amplitude of 8 µm, feed rate of 1000 mm/min and static force of 38 N, should be selected.
