Abstract
In order to improve the braking efficiency of dual torus hydrodynamic retarder, the parameter optimization design of blade top arcs is studied. A numerical model of internal flow passage is established based on the parametric modeling method of blade top arcs. The computational fluid dynamics method is used for design of experiments with the radius and distance of blade top arcs as design variables, and the sensitivity analysis of two parameters having the effect on brake performance is made. A gradient optimization algorithm is used to get the optimum result by building an approximate model of braking torque. The influence of design parameters on internal flow field and external brake performance is analyzed, and the simulated results are compared with the experimental data. The results show that the brake performance of hydrodynamic retarder after optimization is significantly improved, the braking torque is increased by 70.8%, and the blade structure meets the strength requirement.
| Original language | English |
|---|---|
| Pages (from-to) | 400-407 |
| Number of pages | 8 |
| Journal | Binggong Xuebao/Acta Armamentarii |
| Volume | 37 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 1 Mar 2016 |
Keywords
- Dual torus
- Hydrodynamic retarder
- Optimization design
- Power machinery engineering
- Top arcs