Numerical modeling and simulation of friction models for mechanical systems: A brief review

Development and design of intelligent lubricating equipment for feed systems

“…The torque generated by the rotor in the motor structure will be proportional to the current in the armature, and its proportional constant is the torque constant. Theoretically, the torque constant and the characteristic curve of torque–speed–current by measuring voltage and current [ [15] , [16] , [17] ].…”

Simulation of spring-friction set of freight car truck, taking into account track profile

“…Four-axle cars with a capacity of 90 tons (axial loads of about 294 kN) and a car fleet with loads of up to 340 kN on trains weighing 12-20 thousand tons ha ve been manufactured and sold in the United States, Canada, Australia , and other countries since the 1960s. Freight car bodies made entirely of aluminum alloys are commonly used by foreign manufacturers to reduce car container weight to 17-23 tons with a load capacity of 117-120 tons, resulting in a significantly lighter weight for car containers with a load capacity of 27.5 tons to 7 lbs [4,5].…”

“…Structurally, the spring-friction set of the cart of the freight car (Figure 1), as a physical object from the point of view of theoretical mechanics and as a wedge mechanism from the point of view of the theory of mechanisms and m a chin es, is made so that its friction wedges are contacted only by three so lid elements -the above-pressure beam 1, friction bar 4 (or 5) and double springs 7 (or 8) [5].…”