The braking work of the retarder directly determines its braking effect on the skidding wagon. The larger the braking work, the better the braking effect. Based on a new magnetorheological retarder, this paper analyzes the braking process of the new magnetorheological retarder and gives the calculation of the braking work of this retarder. The result shows that the magnetorheological retarder can output appropriate braking work, and the physical and mechanical properties of the magnetorheological material have a large influence on the braking work of this type of retarder.
GeoStudio software was used to simulate the distribution of hydraulic gradient before and after the failure of the piping outlet in the double-stratum dike foundation. By comparing the changes in hydraulic gradient and flow velocity in the dike foundation before and after the failure of the piping outlet, the weak position was determined. The results show that the pressure head in the double-stratum dike foundation before the failure of the piping outlet is mainly borne by the overlying clay layer, and it is then borne by the underlying sand and gravel layer after the failure of the piping. The maximum flow velocity is transferred from the foot of the dike to the outlet of the piping.
The proper utilization of wastes for combined heat and power (CHP) is a powerful measure for energy saving, emission reduction, and environment improvement. The support of a gas pipeline is composed of movable support and fixed support, which is old reconstruction and new addition of the pipeline. Its spatial configuration is complex and its stiffness changes greatly. The static and dynamic mechanical properties of the pipeline support were analyzed based on SAP2000 software. The results show that the stability of the pipeline support meets the requirements and has a certain safety reserve.
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