نتایج جستجو برای: involute
تعداد نتایج: 524 فیلتر نتایج به سال:
Kinematic analysis of a Roots blower with involute flanks and circular root and tip sections is explained. The thermo-fluid model for the blower is described. Two mathematical models have been used to model the blower and its piping system. In the first model flow is assumed steady in the pipes,whereas in the second the unsteady flow in the pipes is taken into consideration. Leakage from the pr...
Roots power machine has obvious advantages in low and medium temperature waste heat recovery. The existing roots the problem of internal flow field disturbance, which seriously affects generation efficiency machine. In order to solve disturbance machine, traditional involute rotor is improved, based on negative displacement proposed. structure model turbulence are constructed, simulation realiz...
Most of the time, mass eccentricity, and misalignment exist at same time with aviation spline coupling working. Therefore, in this paper, function dynamic meshing force between multi-teeth a non-linear model involute system aero-engine eccentricity were presented. And then, on different was investigated. The result shows that when are both small, can run steady. increase or misalignment, load c...
This paper presents the optimum combination of major parameters for high mechanical efficiency of a compact scroll compressor with a fixed cylinder diameter. The mechanical efficiency was calculated for a number of cylinder volumes, where the cylinder diameter and the scroll thickness were fixed at a constant value of 75.7 mm and 4 mm, respectively, and combinations of the involute base circle ...
Over the course of HIV-1 infection, the lymphoid follicles where the humoral immune response is generated initially increase in size and number and then progressively involute. In advanced disease, the network of the processes of follicular dendritic cells (FDCs) that serve as antigen repositories and anatomical substrate for B and T cells and antigen to interact is destroyed, contributing to t...
This article presents an approach to the optimization of helical involute gears for geometrical feasibility, contact ratio, teeth sliding velocity, stresses and static transmission error (STE). The teeth shape is subject to random perturbations due to wear (a randomized Archard’s wear). The consequences of shape inaccuracies are statistically expressed as a 90% percentile of the STE variation, ...
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