摘要:
A seismic isolation apparatus 1 includes a laminated body 7 having alternately laminated rubber plates 2 and steel plates 3; a hollow portion 8 provided inside the laminated body 7 in a hermetically closed manner and extending in a laminated direction A; a lead plug 9 filled densely in the hollow portion 8 and adapted to damp the vibration in a shearing direction B of the laminated body 7 by absorbing vibrational energy in the shearing direction B; and a lid member 14 having a semispherical concave surface 12 which comes into contact with one end portion 11 in the laminated direction A of the lead plug 9 in order to guide and assist the plastic flow of the lead plug 9 at one end portion 10 in the laminated direction A of the hollow portion 8 in the deformation in the shearing direction B of the lead plug 9.
摘要:
An impact absorbing member 10 able to secure absorption energy while lightening weight by absorbing the impact load applied in the axial direction by periodic buckling, wherein the impact absorbing member 10 is provided with a main body 20 comprised of metal sheet and having a polygonal shape in cross-section vertical to an axial direction and a center sheet 30 comprised of metal sheet and provided at a hollow part in the main body along the axial direction, the polygonal shape of the main body 20 includes a pair of long side (20a, 20b) facing each other, the center sheet 30 is joined to each of the long sides (20a, 20b) of the polygonal shape of the main body 20, and the sheet thickness t1 (mm) of the main body 20 and the sheet thickness t2 (mm) of the center sheet 30 satisfy 1.3×t1‰¤t2.
摘要:
An energy-absorbing member includes a fiber structure. The fiber structure includes a first end face configured to first receive a load and a second end face opposite to the first end face in the direction that the load is applied. The fiber structure includes a shape retention section including the first end face, a main section that includes the second end face and hinders propagation of breakage of the fiber structure, and a trigger section that is located between the shape retention section and the main section and serves as a starting point of breakage when receiving an impact load. The shape retention section and the main section each have a woven structure that allows the shape retention section and the main section to have a higher interlayer bonding strength than the trigger section.
摘要:
An energy absorber comprises a bar extending along a longitudinal axis and arranged to be moved along the longitudinal axis upon a tensile force acting on the bar along the longitudinal axis. The energy absorber comprises a first energy absorbing means and a second energy absorbing means extending along the longitudinal axis. The energy absorber comprises a coupling mechanism for coupling the second energy absorbing means to the bar. The bar is arranged to activate energy absorption of the first energy absorbing means upon movement of the bar along the longitudinal axis. The coupling mechanism comprises at least one force transferring element arranged to transfer force from the bar to the second energy absorbing means upon activation by at least one trigger element. The trigger element is arranged to be subjected to a trigger load as the bar is moved along the longitudinal axis, wherein the trigger load is proportional to velocity of the bar such that a higher velocity results in a higher trigger load. The trigger element is displaceably arranged relatively its unloaded position upon loading and, simultaneously, constrained from displacing by a constraining force acting in opposite direction of the trigger load. The trigger element is arranged to be displaced for activating the force transferring element for coupling and activation of the second energy absorbing means to the bar when the velocity of the bar is higher than a first pre-determined non-zero amount.
摘要:
A vehicle load-limiting suspension apparatus comprises at least one shear tab for controlling an amount of impact load applied to a vehicle structure when a vehicle impact event occurs. The vehicle load-limiting suspension apparatus further comprises at least one crush tube for limiting the amount of impact load applied to the vehicle structure after the at least one shear tab shears in response to occurrence of the vehicle impact event.
摘要:
A vehicle body front section structure capable of suppressing deformation of a vehicle body in a small overlap collision is obtained. A vehicle body front section structure (10) includes a front side member (12) with a crash box (14) attached to a vehicle front end, a coupling member (46) that is interposed between and joined to the crash box (14) and the front side member (12) at a vehicle front end side, and that is joined to a fender apron section (44) at a vehicle rear end, and a spacer (56) that is disposed at a portion overlapping with the front side member (12) in a vehicle vertical direction between the front side member (12) and the coupling member (46).
摘要:
Described herein are energy absorbing apparatus and methods of use that utilise varying energy absorbing relationships between the apparatus members to absorb an energy input. The energy absorbing process occurs via a material forming process.