A fluid-filled tubular vibration-damping device including: an inner shaft member and an outer tube member connected elastically; a non-compressible fluid filling region formed between the members; and a partition wall rubber partitioning the filling region into fluid chambers at axially-opposite sides thereof connected by an orifice passage, wherein the partition wall rubber protrudes into the filling region on one of inner shaft member side and outer tube member side, while a concave groove opens to the filling region extending in a peripheral direction on an other of the sides, and a tip part of the partition wall rubber is inserted in the concave groove without being compressed in an axis-perpendicular direction and is configured to be axially pressed against an inner face of the concave groove to constitute a sealer fluid-tightly obstructing a space between the partition wall rubber and the inner face.

Aspects of this disclosure pertain to a vehicle comprising: a vehicle body enclosing an interior cabin; a forward-facing opening in communication with the interior; a windshield laminate disposed in the forward-facing opening; at least a pair of side facing openings adjacent the forward-facing opening; and at least one side window laminate disposed in each of the pair of side facing openings, wherein the windshield laminate has a first coincident dip minimum at a first frequency, and the side window laminate has a second coincident dip minimum at a second frequency, wherein at least one of or both the first frequency and the second frequency is less than 1000 Hz or greater than 5000 Hz.

An isolation system for a vehicle having a rear frame attached to a front frame. The rear frame supports a greater portion of a total force applied to the vehicle than the front frame. The isolation system includes at least one isolating device positioned between the rear and front frames. The isolating device supports a portion of the total force applied to the vehicle in a direction in which the isolating devices is positioned. The isolation system includes a force limiting device positioned near the isolating device and a motion limiting torque rod attached to the rear and front frames. The force limiting device limits the amount of load applied to the isolating device above a maximum load. The motion limiting torque rod prevents or limits movement of the rear frame relative to the front frame in the direction in which it is aligned.

A vehicle bulkhead structure may include a dash panel; a pair of front side members spaced apart from each other and coupled to the dash panel; and a plurality of reinforcement members coupled to a front surface of the dash panel, wherein some of the plurality of reinforcement members support each front side member.

A work vehicle includes a frame, an axle, a cab supported by the frame, a first tuned mass damper assembly, and a second tuned mass damper assembly. The frame includes a first longitudinal frame member and a second longitudinal frame member. The first longitudinal frame member has a first rear end, and the second longitudinal frame member has a second rear end. The second longitudinal frame member extends parallel to the first longitudinal frame member. The axle extends perpendicular to the first and second longitudinal frame members. The cab is disposed on a side of the first and second longitudinal frame members opposite the axle. The first tuned mass damper assembly is mounted on the first longitudinal frame member between the first rear end and the cab. The second tuned mass damper is mounted on the second longitudinal frame member between the second rear end and the cab.

A work machine includes a frame and an operator cabin having a floor panel. The floor panel includes a floor plate, a floor mat, an access hole, and an access door assembly. The floor plate is connected to the frame. The floor mat is connected to the floor plate. The access hole is through the floor plate and the floor mat. The access door assembly is pivotally connected to the floor plate and positioned in the access hole. The access door assembly includes a door plate and a floor mat section. The door plate is pivotally connected the floor plate. The floor mat section is connected to and substantially covers the door plate. The access door assembly is configured to move between a closed state in which the access door assembly covers the access hole and an open state in which the access door assembly uncovers the access hole.

A vehicle vibration control system (VCS) includes a vehicle having at least an engine, a transmission, a frame, a steering column with a steering wheel attached, a passenger cabin, and a controller area network (CAN) bus. The vibration and noise in the cabin and in or around steering column are bothersome to passengers in the passenger cabin. Linear force generators (LFGs) are used to control the noise and vibration in or around the steering column and/or steering wheel. Circular force generators (CFGs) are used to control noise and vibration in the passenger cabin. Sensors are used to measure the noise and vibration.

A suspension system (2) comprising two flanges (10A, 10B), defining respective absolute reference positions, the second flange (10B) defining a relative reference position relative to the first flange (10A); and a core member (17), which is mobile only along a two degrees of freedom (M19, R19), a damper (21) applying an elastic return for bringing back the core member (17) to two degree reference positions; wherein the positions of the flanges (10A, 10B) and of the core member (17) are mechanically linked so that: when the flanges (10A, 10B) are in the absolute reference positions, the core member (17) is in the two degree reference positions; when the second flange (10B) is away from the relative reference position, the core member is away from the first degree reference position; and when the flanges (10A, 10B) are away from the absolute reference positions, the core member is away from the second degree reference position.

1. A device for decoupling vibrations between two systems and a working machine

2. A device together with an assigned working machine for decoupling vibrations between two systems (2, 4) in the form of spring-mass oscillators, of which one system (2) is assigned to a motion machine and the other system (4) is assigned to an operator operating the motion machine, which other system (4) at least partially performs motions about a transverse axis (Q) during driving motions of the motion machine and in doing so is subject to vertical motions in the direction of a vertical axis (z) at an absolute vertical speed (.sub.z1,1), which serves as an input variable of control devices and/or regulating devices, which control a damping system (8) of the one (2) and/or the other (4) system to compensate for the vibrations, is characterized in that the respective pitch motion of the other system (4) is detected by at least one rotation rate sensor, the respective measured value (.sub.1) of which, preferably amplified by only a predeterminable factor (L.sub.1), results in the absolute vertical speed (.sub.z1,1) as input variable.

A commercial motor vehicle having a chassis, an engine compartment defined between parallel elongate beams of the chassis, and a driver cabin positioned at least partially over the engine compartment. The driver cabin being supported on the chassis by spaced resilient suspension devices, and includes an upper cabin part and a lower cabin part. The upper cabin part is tiltable to allow access to the engine compartment by being hinged about a lower edge, while the lower cabin part remains associated with the chassis when the upper cabin part is tilted. The lower part of the driver cabin is supported by the resilient suspension devices.