Method of designing disk-block type power devices based on structural-parametric synthesis

The developed design methodology makes it possible to evaluate the operational parameters of stability, efficiency and energy intensity of newly designed and operated discpad type braking devices with various clamping mechanisms. A distinctive feature of the developed methodology is the consideration of the number, size and geometry of the placement of the clamping elements of the braking device, in contrast to previously known calculation methods. The performed calculations of the operational parameters of braking devices with poly-clamping elements, according to the proposed methodology, made it possible to conclude that the brake mechanism with two clamping elements has greater efficiency and stability than the serial mechanism and the proposed alternatives with the same geometric parameters of the brake disc and pads. Another feature of the technique is the relationship between the operating parameters of the brake and the heat transfer capacity of the cooling unit of the device. The calculation of the temperature field and the ability of heat transfer from heated surfaces to the external environment is based on the method of determining the residual temperature, the distribution of temperature fields over the thickness of the disc and the developed multilayer thermal model "ventilated brake disc – external environment". As a result of calculations, the power device with two clamping elements has an increased braking torque in the center of pressure relative to the serial brake mechanism by 29.7%. The coefficients of stability and oscillations of the braking torque of a power device with two clamping elements increased relative to the mono-clamping brake mechanism by 14.1% and 3.6%, respectively.

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