摘要:
A composite material structure that can be made lighter in weight is provided, with the stress concentration at peripheral edge regions around holes being taken into consideration. A wing (1) that is a composite material structure is of a composite material that extends in one direction, has access holes (5) formed therein, and is made of fiber reinforced plastic. A lower surface outer plate (3) of the wing (1) is subjected to a tensile load in the longitudinal direction. The longitudinal tensile stiffness of peripheral edge regions (3a) around the access holes (5) is lower than the longitudinal tensile stiffness of other regions (3b) surrounding the peripheral edge regions (3a).
摘要:
Joint parts 14 of joinable plates 12a, 12b to be joined to each other are joined by a plurality of joining bolts 16a-16d. The joining bolts are arranged in a direction of a tensile load F. The joint parts 14 of the plate members 12a, 12b have four sections T1 to T4 that vary in elastic modulus. The elastic modulus (E1 to E4) of these sections T1 to T4 have a relationship of E1(T1)>E2(T2)>E3(T3)>E4(T4). By arranging the bolts 36a, 36d in the low-elastic sections T1, T4, the shared load of the joining bolts are equalized.
摘要:
Joint parts of joinable plates to be joined to each other are joined by a plurality of joining bolts. The joining bolts are arranged in a direction of a tensile load F. The joint parts of the plate members have four sections T1 to T4 that vary in elastic modulus. The elastic modulus (E1 to E4) of these sections T1 to T4 have a relationship of E1(T1)>E2(T2)>E3(T3)>E4(T4).
摘要:
An absorbent article package is individually packaged by folding a packaging sheet and an absorbent article in a state where the absorbent article is arranged on the packaging sheet. In a state where the individually-packaged absorbent article is opened, in the packaging sheet and the absorbent article, a first folding line based on which the absorbent article and the packaging sheet are folded towards the topsheet side, and a second folding line based on which the absorbent article and the packaging sheet are folded towards the backsheet side are formed adjacent to each other in the longitudinal direction.
摘要:
A napkin package is difficult to form permanent folding, twisting or corrugation in a leakage preventing wall as folded and wrapped by a packaging sheet, to ensure raising of the leakage preventing wall from a surface of a sanitary napkin after opening the package for achieving satisfactory side leakage preventing effect. A sanitary napkin has longitudinally extending leakage preventing walls on both sides of a liquid absorbing portion. A reinforcement sheet is provided on a surface side of a folded sanitary napkin with covering a portion of the folding line, the reinforcement sheet is bent at a position corresponding to the folding line without forming crease, and portions of the leakage preventing walls located corresponding to the portion across which the folding line extends, are urged onto an outer surface of the bent portion of the reinforcement sheet by the elastic tension force.
摘要:
There is disclosed an absorbent article including: a liquid absorbing member having an absorbent core; a support body positioned on the lower side of the liquid absorbing member; and an elastic member for supporting the liquid absorbing member. The elastic member extends in the longitudinal direction of the absorbent article and is fixed at its front and rear end portions on the support body. The elastic member is positioned at the widthwise central portion of the absorbent article. The support body is bent in the longitudinal direction by the tension of the elastic member, and the liquid absorbing member is deformed to bulge at its widthwise central portion away from the support body by the central elastic member.
摘要:
A sanitary napkin including a middle region and lateral regions lying adjacent the middle region, and a transversely middle region of the sanitary napkin being configured to have a rigidity lower than that of the lateral regions.
摘要:
A bearingless hub structure for rotary-wing aircrafts comprising a hub bodyecured to a rotor shaft, a plurality of radially extending flexbeams integrally formed with the hub body, and pitch housings enclosing each of the flexbeams in spaced relationship, the pitch housing having a radially outer end portion rigidly secured to an inboard end of a rotor blade and a radially inner end portion supported by a spherical bearing in the vicinity of a root end of said flexbeam.The flexbeam consists of a flexible element of low lead-lag stiffness and a torsion element of low torsional stiffness located radially outside the flexible element. The flexible element consists of two beam-like members having radially inner ends spaced in the lead-lag direction and extending radially outward with narrowing the distance between them, the beam-like member having radially outer end connected to a radially inner end of the torsion element.
摘要:
An individual package of an absorbent article permits a base end of a tape to be bonded with sufficiently large bonding strength without complicating packaging process and increasing manufacturing cost. The absorbent article is wrapped by a package sheet having side edge portions and end edges, and one end edge is overlapped over the other end edge. The package sheet is sealed along the side edge portions, a base end of a tape is fixed on the surface of the package sheet located outside in an overlapping portion, and a free end of the tape extends across one end edge and is releasably adhered on the outer surface of the package sheet adjacent one end edge. The package sheet has a surface, on which the base end of the tape is fixed, the surface being smoothed by a smoothing process.
摘要:
A fiber laser light source is provided with a laser resonator including a pair of fiber gratings optically connected to a fiber in a state that the fiber is interposed between the paired fiber gratings. The reflection center wavelength of a laser-exit side fiber grating, out of the paired fiber gratings, lies in a wavelength range where the reflectance of a fiber grating, out of the paired fiber gratings, closer to the pump laser light source is not smaller than 80% but not larger than 98%.