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Crane operating cycles
This functionality is in
beta stage
.
Crane operating cycles
public
No. of operating cycles for required service life
Input
No of operating days in a year
$ hoist_{days} = 250 \; \; days $
Service life in years
$ hoist_{years} = 25 \; \; years $
Result
Total service cycles
$$ crane_{cycles} = {hoist_{cycles_{day}} \cdot hoist_{days} \cdot hoist_{years}} $$
Show formula syntax
Hide formula syntax
crane_{cycles} = hoist_{cycles_{day}} * hoist_{days} * hoist_{years}
Preceding calculations
3
No. of hoist cycles per hour
public
Number of hoist cycles per hour, used in class of utilisation for the crane as a whole.
No. of hoist cycles per hour
$$ cycles_{hour} = 12 \: $$
Hoist hours per day
public
Operating time of hoist motion per day
No. of hook strokes per cycle $$ hook_{cycles} = 4 \: $$ Hook travel $$ hook_{travel} = 4 \: m $$ Operating hours per day $$ hours_{operating} = 8 \: h $$ Hoist speed $$ v_{hoist} = 5 \: m / min $$
Hoist motion hours per day
$$ hoist_{hours_{day}} = {{( hook_{cycles} \cdot hook_{travel} \cdot cycles_{hour} \cdot hours_{operating} ) \over \left({ v_{hoist} \cdot 60 }\right)}} \:, h $$
Hoist cycles per day
public
Number of hoist motion operating cycles in a day
Hoist motion cycles per day
$$ hoist_{cycles_{day}} = {hoist_{hours_{day}} \cdot cycles_{hour}} $$
Manualy linked to calculations
1
Crane classification
public
Crane classification
$$ Crane class = 4 \: $$
Calculation details
Show in calculation
Class of utilisation for the crane as a whole
Class of utilisation
Max. number of operating cycles
Remarks
U1
3.2 x 10
4
Infrequent use
U2
6.3 x 10
4
Infrequent use
U3
1.25 x 10
5
Infrequent use
U4
2.5 x 10
5
Fairly frequent use
U5
5 x 10
5
Frequent use
U6
1 x 10
6
Very frequent use
U7
2 x 10
6
Continuous or near continuous use
U8
4 x 10
6
Continuous or near continuous use
U9
> 4 x 10
6
Continuous or near continuous use
Discipline:
mechanical
Calculation