It is indicated that the section of the screw is a circle with an eccentricity of RG and a radius of R, and the section of the liner is an enclosed smooth curve comprised of two semicireles with a radius of R and a concentricity of 4RG and two collateral lines with a distance of 2R.
Fractures occurr frequently in the bushing made from high speed tool steel on the bearing system of blast hole rock bits A big increase in toughness is obtained through low temperature quenching and parameter optimization The industrial test shows that the fracture rate declines from 90%~96% by 7%~13% and drilling meters increase by 17%.
The experience in production of the bushes and operation of the compressor proved that after adopting new cold extrusion technology the hardness on inner surfaces of connecting rod bushes is increased to HB90～110 from HB60～65, the surface strength of the bushes ls enhanced by 30%, wear resistance 60%～80%. Furthermore the problems like connecting rod cracking and bush scuffing, etc. are consequently solved.
A procedure for multiparameteric testing of the depth and hardness of a carburized layer, as well as the hardness of the core of a link bushing made from 15XM steel without the direct access to the core's material, is developed.
Analysis of nonlinear electric field of hvdc wall bushing with a finite element approach
The wall bushing is subjected high voltage with nonlinear electric field and the relationship between the electric field intensity and the resistance of the insulators of the wall bushing is highly nonlinear.
With the model and the iteration technique established, the nonlinear characteristics of the HVDC wall bushing can be investigated with efficiency.
New nonlinear bushing model for general excitations using Bouc-Wen hysteretic model
At the initial stage, the strong hind limbs provided the opportunity to climb and leap onto trees, bushes, or eminence, while the anisodactylous foot provided a firm support on both dry land and trees.
A new type of nonlinear (anharmonic) excitations-bushes of vibrational modes-in physical systems with point or space symmetry is discussed.
All infrared-active and Raman-active bushes for C60 fullerene are found by means of special group-theoretical methods.
We present the main results obtained from investigations on perfecting the design of experimental bushes 600 mm in diameter.
aspis became overgrown by bushes and trees, which in turn may have led to a colder, more humid and thus unfavourable microclimate for V.