This publication presents design examples covering various machines, vehicles and equipment having one thing in common: rolling bearings. For this reason the brief texts concentrate on the rolling bearing aspects of the applications. The operation of the machine allows conclusions to be drawn about the operating conditions which dictate the bearing type and design, the size and arrangement, fits, lubrication and sealing. Important rolling bearing engineering terms are printed in italics. At the end of this publication they are summarized and explained in a...
shows the accelerometer data of the frame and body at the B-Pillar of truck F (with type F body mount) with a duration of 20 ms in a 35 mph rigid barrier test. The data were filtered by a Butterworth 2nd-order filter at a roll-off frequency of 100 Hz according to SAE J211, Instrumentation for Impact Tests. The duration of the frame impulse lasts about 10 ms and the peak magnitude is about -135 g at 7 ms. The first peak magnitude of the body deceleration is about -35 g at 11 ms, about 4 ms later than the...
The collective load is the basis for determining the
average speeds (2,387 min–1) and the average driving
speed (111 km/h). For each of the load cases the tooth
load acting on the pinion and the reaction loads from
the bearings have to be calculated both for forward and
backward motion (percentage times 50 % each).
In addition to these forces, the bearings are subjected
to loads due to the rotor weight, the unbalanced magnetic
pull, unbalanced loads and rail shocks. Of these
loads only the rotor weight, GL, is known; therefore, it
is multiplied by a supplementary factor fz = 1.
4.35 and 4.36, respectively. Shown in Fig. 4.39, the impulses of the two vehicles between 0 to 20 ms are mainly due to the stiff front rail design and damping of the body mount. They are not considered the decelerations of the main body of the truck. It will be shown in Chapter 5 that the impulsive transient responses at the beginning of the crush are mainly controlled by the damping characteristics of the body mounts, positioned between the compartment (or cab) and frame. The steady state compartment responses, where the peak body deceleration occurs, are attributed mainly to and...
Landmines and explosive remnants of war (ERW), which include unexploded ordnance
(UXO) and abandoned explosive ordnance, represent a major threat to civilian. This
demands that all the mines and ERW affecting the places where ordinary people live must
be cleared, and safety of people in areas that have been cleared must be guaranteed.
This publication presents design examples covering various machines, vehicles and equipment having one thing in common: rolling bearings. For this reason the brief texts concentrate on the rolling bearing aspects of the applications. The operation of the machine allows conclusions to be drawn about the operating conditions which dictate the bearing type and design, the size and arrangement, fits, lubrication and sealing. Important rolling bearing engineering terms are printed
This configuration enables the rubber to be loaded in both shear and compression with the majority of engine rotational flexibility being carried out in shear. Vertical deflection due to body pitch when accelerating or braking is absorbed mostly in compression. Vertical elastic stiffness may be increased without greatly effecting engine roll flexibility by having metal spacer interleafs bonded into the rubber. Double inclined wedge with longitudinal control mounting (Fig. 1.
The concept of delivering T1s is
almost 30 years old. New technolo-
gies like HDSL have been intro-
duced but, overall, T1-based ser-
vices today are being delivered
with the same architecture used in
the 1960s. But, while the architec-
ture has remained, applications
have changed radically. The tele-
phone company introduced T1 as a
means of delivering message
trunks over copper facilities
between central offices.
Skill-Assist is a kind of power assist devices which has been introduced to labor-intensive final assembly lines
in automotive industry for helping workers mount such heavy modular parts as instrumental panels on vehicles with
high positioning accuracy. The paper briefly describes a current technology which has been already implemented
on the controller of the Skill-Assist for putting it to practical use, and a future safeguarding method that has been
developed on a laboratory basis.
The Mk. II Volkswagen Golf and Jetta range of models was
introduced in March 1984, revised body and trim features being the
main visual difference to the earlier range of models.
The engine/transmission is mounted transversely at the front of the
vehicle, drive being to the front wheels. Detailed improvements have
been made throughout the years of manufacture to improve power
output and economy.
This section deals with "cosmetic" rust repairs, on panels that do not form part of the vehicles load-bearing
structure. Any repairs to chassis, frame or mounting points of any type must be carried out to a professional
standard, which is not the intended scope of this section.
Rust repairs generally cover two areas; surface rust and rust holes (perforation ) Surface rust can usually be
removed and held at bay successfully, perforated metalwork will need much more extensive work to provide a