About the influence of allowance on rope tensioning
Abstract
When lifting a load lying on a fixed base, the rope is sometimes not only unloaded, but also has an overhang. It is practically important to determine under these conditions the greatest tension of the rope in the first moments of driving the drum into rotational motion. This issue is devoted to the works of V. V. Georgievskaya, who divides the process of lifting the load into three stages: 1) selection of the rope tension; 2) removal of the load from the fixed base; 3) lifting the load. It is assumed that in all three stages, the drum, on which the rope is wound, rotates at an equal speed, having left the state of rest. The author neglects the change in rope length and the influence of internal resistances in the rope.
References
- Georgievskaya V. В. Influence of rope allowance on dynamic forces in the rope (zero and first stages). Applied Mechanics, vol. I, iss. 4. Kiev, 1955.
- Georgievskaya V. В. Influence of rope allowance on dynamic forces in it (second stage of lifting). Applied Mechanics, vol. II, iss. 2. Kiev, 1956.
- Georgievskaya V. В. Influence of rope allowance on dynamic forces in it. RAS USSR, vol. 2, 1958.
- Zalesov O. A. Methods of reduction of dynamic stresses in ropes of hoisting installations. University Proc. Mining Journal, 1958, No. 11.
- Ponomarenko Y. F. Influence of contactor control of asynchronous motor of hoisting installation on the strength of ropes. Coll.: Mine Lifting. Metallurgizdat, 1953.