Embodiments of safety trucks incorporate multiple connection points to which a variety of attachments, or combinations of attachments, can be releasably and interchangeably coupled to enable their use with increased effectiveness to safeguard roadway construction, maintenance and repair personnel as they perform tasks within or relatively near to roadway workzones and worksites. Also, methods of operation of the safety truck embodiments enhance their ability to guard and protect roadway construction, maintenance and repair personnel while they work within or relatively near to roadway workzone and worksite locations.

A nuclear reactor seismic isolation assembly includes an enclosure that defines a volume; a plastically-deformable member mounted, at least in part, within the volume; and a stretching member moveable within the enclosure to plastically-deform the plastically-deformable member in response to a dynamic force exerted on the enclosure.

An easy-to-maintain frame-type energy-absorption structure, including: a fixing frame, anti-climder which are arranged at the front of the bottom of the fixing frame, energy absorption block which are detachably connected with the fixing frame and the anti-climder respectively, a connecting device for hinging the anti-climder and the fixing frame, and shear pins which are respectively arranged at a junction of the connecting device and the fixing frame, and a junction of the connecting device and the anti-climder. So that changing the traditional whole welded frame type energy absorbing device into an easy-to-maintain frame-type energy-absorption structure, and when a collision occurs, protecting the fixing frame from being damaged, and the energy absorption block can be replaced to achieve reuse it.

To increase a compactness of damping systems intended to operate in the event of a dynamic landing of an aircraft, a damping system comprises a primary damper device and a secondary damper device. The primary damper device comprises at least one beam, each beam extending along a direction of a longitudinal axis. The damping system is configured so that at rest, the primary damper device has a stiffness greater than a stiffness of the secondary damper device in the direction of the longitudinal axis. When a force is applied to the damping system along the direction of the longitudinal axis, with a value less than a limit value, each beam remains in a compression state. When the force applied has a value greater than or equal to the limit value, each beam undergoes buckling and the secondary damper device undergoes elastic deformation.

A composite tie bar assembly for distributing loads to a support frame of an automotive vehicle. The tie bar assembly includes a pair of spaced apart. reinforcement bars extending longitudinally between opposing ends. A tie bar shell is supported by the reinforcement bars and extends between opposite first and second distal cods. The tie bar shell has a first support plate extending between the reinforcement bars adjacent the first distal end and a second support plate extending between the reinforcement bars adjacent the second distal end. Bach of the support plates includes a plurality of structural ribs formed Integral therewith for distributing loads from the reinforcement bars to the support frame of the vehicle.

A shock absorbing member is provided having a sequential destruction capability and protection against electrolytic corrosion on fastening-fixing portions thereof to be fastened to a bumper reinforcement or a vehicle body. Embodiments include a shock absorbing member between a bumper reinforcement and a vehicle body, including a distal end portion fastened to the bumper reinforcement; a base end flange portion fastened to the vehicle body; and an absorbing member body extending in a vehicle front-rear direction and connecting the distal end portion and the base end flange portion. The absorbing member body includes a carbon fiber-glass reinforced plastic layer. Fastening-fixing portions of the distal end portion and the base end flange portion are composed of glass fiber reinforced plastic layers.

An energy absorber includes a flexible tensile member having lengthwise sections arranged serially along a length of the flexible tensile member. Lengthwise sections define convolutions. Features are provided for both restricting straightening of the convolutions and automatically reconfiguring, in response predetermined tension in the flexible tensile member, to allow straightening of the convolutions.

A vehicle body includes a structural member having an inner surface defining an elongated cavity. The structural member includes an outer panel member joined to an inner panel member. A reinforcement member is positioned in the cavity wherein a gap is provided between the reinforcement member and the inner surface of the structural member. The reinforcement member includes an outer section, an inner section and a tension web interposed between and contacting the outer section and inner section. The outer section faces the outer panel member and the inner section faces the inner panel member. The tension web is secured to the outer panel member and inner panel member. An adhesive secured to the reinforcement member is activatable to expand toward the inner surface of the structural member to define a joint between the reinforcement member and the structural member and to at least partially fill the gap.

A crash box capable of easily deforming into a bellows shape and absorbing impact energy more reliably, and its manufacturing method are provided. The present disclosure is applied to a crash box which is partly deformed in an axial direction to absorb impact energy when the crash box receives an impact in the axial direction. A first layer made of metal and a second layer made of metal containing a larger volume of bubbles than that of the first layer are alternately formed in the axial direction in the crash box according to the present disclosure.

A separable integrated type vibration isolator includes: divided vibration isolator units comprising casings having accommodation spaces formed open on tops thereof and reinforced concrete comprising reinforcing bars arranged in the accommodation spaces and the connection spaces and concrete cast in the accommodation spaces; casing connection parts for connecting the casings of the divided vibration isolator units to each other; reinforcing bar connection parts for connecting the reinforcing bars exposed to the connection spaces of the neighboring divided vibration isolator units to each other; and fillers adapted to be cast in the connection spaces where the plurality of divided vibration isolator units is connected to form reinforced concrete.