In this paper,Fuzzy reliability mathematical model & computation are established and reliability design method of contact-fatigue strength is discussed with reliability theory & fuzzy mathematics theory for wheel-side planetary reducer in wheel loaders in both presence fuzzy variable and stochastic variable. Design examples shows that it is feasible and practical.
Established in this paper are the mathematical model of the rotational speed control system of the driving secondary units which simulate the vehicle engine, and of the torque control system of the loading secondary units which simulate the wheel edge of the transmission bridge.
The mathematical models are built of the rotational speed control system of the driving secondary units which simulate the vehicle engine, and the torque control system of the loading secondary units which simulate the wheel edge of the transmission bridge.
A series of hypoeutectic FeSiB metallic glasses produced by single-roller melt spinning were found to have substantial wheel-side surface crystallization.
The double-peaked diffraction lines for these alloys correspond to two compositions of the α-Al phase with less copper solute in the top-side than in the wheel-side of the ribbons.
In 70 at% Ni alloy ribbons, martensitic NiAl grains were detected near the wheel-side surface contrasting with anomalous and lamellar eutectic microstructure in the top part.
The wetting characteristics are substantially revealed by the wetting pattern on the wheel-side surface of the ribbon, which consists of areas of air pockets and areas of direct contact between metal and wheel.
This paper deals with a problem concerning the ship-mo-del correlations on manoeuvring performance by using twosteering quality indices-the quick response index T and theturning ability index K. First, the analysis is made to clarify the cause of existingscale-effect in model steering experiments. The data used inthe analysis were of 2000 HP pushtrain. The variation tendencyof scale-effect on manoeuvring performance obtained fromthe analysis is that the smaller the model is, the bigger scale-effect will be,...
The optimization of the decelerator on a wheel-side is the first and an important step toward the optimization of a loader in its driving system. In this paper, the main parameters of the decelerator would be optimized by two optimization methods: interactive computing and the complex form approach by which the deceleration ratio may be maximized and the volume minimized. In this case, the space of a wheel-rim can be efficiently made use of, and the general driving ratio can be absorbed to a greatest extent...
In the article the NW planet-gear was set in CL7 and wa s optimized by interaclive computing and complex optimization Methed; The calculation proved that this kind of framework can futher increase the drying ratio and make the layout of whole machine easier