3 results about "Variable stiffness" patented technology

The invention discloses a variable-rigidity reinforced pneumatic soft driver. A non-strain layer is pasted to the bottom face of a drive cavity inner core, and an initial drive cavity inner core is formed. The periphery of the initial drive cavity inner core is wrapped by thin wires on the top face and the bottom face of the initial drive cavity inner core. A drive cavity outer packaging skin layer is arranged on the outer sides of the thin wires to achieve packaging, and a packaged drive cavity is formed. The bottom plane of the drive cavity is pasted to the top face of a rigidity adjusting cavity wrapping body, and the two ends of the drive cavity are sealed by a front end cover and a rear end cover correspondingly. A drive gas cavity is formed in the sealed drive cavity inner core. A variable-rigidity adjusting gas cavity is formed in the rigidity adjusting cavity wrapping body. Multiple endoskeletons are arranged in the variable-rigidity adjusting gas cavity, and particle spheres are distributed in the variable-rigidity adjusting gas cavity and between the adjacent endoskeletons. A gas source gas inlet guide pipe stretches into the drive gas cavity from the rear end cover, compressed air enters the drive gas source through the gas source guide pipe, a gas source gas outlet guide pipe stretches into the variable-rigidity adjusting gas cavity from the rear end cover, and thevariable-rigidity adjusting gas cavity is vacuumized through the gas source guide pipe.

The invention discloses a hanging elastic element for a heavy all-wheel drive off-road vehicle and a design method of the element. The hanging elastic element comprises a variable-stiffness few-leaf-spring assembly, an intermediate axle assembly, a rear axle assembly and a balance shaft seat, the variable-stiffness few-leaf-spring assembly comprises primary spring group springs and secondary spring group springs, a frame is fixedly connected at the upper end of the secondary spring group spring, the upper ends of the intermediate axle assembly and the rear axle assembly are respectively connected with the upper end of the balance shaft seat through the primary spring group springs, and the lower ends of the intermediate axle assembly and the rear axle assembly are respectively connected with the lower end of the balance shaft seat through lower thrusting rods. The hanging elastic element has suitable hanging partial frequency under the independent action of the primary springs and under the combined action of the primary spring group springs and the secondary spring group springs, tests of smoothness, comfort and reliability of a real vehicle are verified, a type test is verified, and the hanging elastic element has good smoothness, comfort and reliability under various working conditions and solves the problems of poor smoothness and comfort of a linear single-stiffness leaf spring of a heavy 6X6 off-road vehicle.