Parameter optimization of a motorized spindle lubrication system using biogeography-based optimization

Abstract

Using response surface methodology, two-target parameter mathematical models for a 100MD60Y4 motorized spindle are established using biogeography-based optimization. Air supply pressure, fuel supply rate, and oil supply interval are the independent variables, while the spindle temperature increase and oil mist PM 2.5 cumulative volume distribution percentage are the response variables. Biogeography-based optimization is used to find a set of optimal lubrication system parameters with the constraint of a small temperature increase in the motorized spindle at 30,000 r/min while considering the influence of oil mist particle size on environmental quality. After lubrication system parameter optimization, comparing the particle size distribution density and temperature increase between the biogeography-based optimization model's calculated values and the experimental test results, the errors were 1.8% and 1.17%, respectively.

Cooling of motor spindles—a review

“…4 K. By increasing the oil viscosity from 15 to 68 cSt, a quantitatively similar effect is achieved. In [137] these variables are also varied at a spindle speed of 30,000 min −1 . By increasing the pressure from 0.29 MPa to 0.41 MPa, a reduction of dθ in/out of about 30% can be achieved.…”

Thermoelectric-based cooling system for high-speed motorized spindle II: Optimization and validation strategy

“…For the structural optimization, the main methods include the construction theory, topology optimization, and bionic optimization to optimize the material distribution within a specific load, constraint, area, and performance [18][19][20]. For the optimization of convective heat transfer, the commonly used method is to increase the heat dissipation of the cooling system and balance the temperature field through controlling the cooling parameters and optimizing the cooling channel [21][22][23][24]. For the optimization of thermal conductivity, the material with high thermal conductivity becomes the best choice, through which the heats generated by the internal heat sources can be transferred to other areas quickly to balance the temperature field [25].…”

Thermoelectric-based cooling system for high-speed motorized spindle I: design and control mechanism

“…Recently, the loop thermosyphon and oil-air lubrication system are used to cool the spindle [15,16], however, the health risk created by oil mist and effective control of ambient air quality should be considered in oil-air lubrication system, and the medium with a wide range of phase transition temperatures should be further studied in loop thermosyphon. In summary, with the continuous development of optimized design and cooling technology, the temperature rise and thermal deformation of motorized spindle have been effectively improved.…”