(3) Under the stress ratio R=0.5,the corresponding fatigue design S-N curve(attributed by hot spot stress,m=10) of low carbon steel tubular joints treated by ultrasonic peening before and under loading are lgN=28.0-10lgS and lgN=13.37-3lgS respectively.
(2) Under the stress ratio R=0,the corresponding fatigue design S-N curve(attributed by hot spot stress,m=10) of low carbon steel and austenite stainless steel 1Cr18Ni9Ti tubular joints treated by ultrasonic peening before loading is lgN=30.78-10lgS.
The test result indicates that a six-story compound structure with the sections of beams and columns being 250 mm×250 mm and the section of braces being(120 mm×120 mm) and loading area being 4.2 m×4.2 m satisfied the code requests of cracks and deflection and capacity in a way of vertical loads combination.
Reported QSRR models are critically reviewed, bearing in mind their statistical predictability physical meaning.
Synthesis and evaluation of five different N,N-disubstituted aminoethanol ester derivatives of indomethacin bearing structural resemblance to the aminoethanol ester class of anticholinergics are reported herein.
Influence of the Mechanical Seals on the Dynamic Performance of Rotor-Bearing Systems
In this paper, to consider the effects of mechanical seals, a lumped-mass model and the transfer matrix method are used to establish the equations for the dynamics performance of rotor-bearing system.
To check the response of the rotor-bearing system under unbalance motivation, the Gauss method is used to calculate the dynamic response of the constrained vibration.