Lugs to Lifting Beams
The lifting lug transfers the force from the lifting hook to the load itself. The weight of the load cannot be seen directly, but it can be calculated. As the load is lifted, its weight is converted into potential energy: the energy required for the lift therefore consists of the increase in potential energy together with the mechanical losses of the lifting system.
The deformation of the lifting lug is proportional to lifted weight, without telling the amount of the used power. This is because, by knowing the power in time unit, the total time or lifted height is not known. Time does not affect to strength of the lifting lug. It is affected by the number of repetitions. On the other hand, repetions can not determine by examining the lug.
History backwards: The Big Bang generated 80% hydrogen and 20% helium. Percentages should pay attention to, because this ratio affects a number of issues. For example, the ratio of right and left-handed people. As an introduction to the factor of 1.25, in general 20 % corresponds to 80 % of all events.
100/1.25 = 80 40/80 = 0.25
The collapse of stars generated nuclear fusion and new elements such as iron and is therefore everywhere in the universe. Iron is a chemical element, including the mathematical proportionality. The calculation is based on the S235 and S355 strength class steels, which closely have the strength ratio of Golden Ratio 1.618. Calculated ratio S355 / S235 = 1.51
It is good start the design work by planning first the lifting lugs. Once I heard the supervisor's instruction, at a tank manufacturer's premises; "do first the needed lifting lugs". This, because a designer had forgotten lifting lugs. The problem was how to turn the tank construction, without lifting lugs. Previous sounds humorous, but think it more about.
10.1.2015*13:00 (978 - 73)
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