The fatigue life calculation formula is corrected by introducing a crack closure parameter that can be calculated by the stress ratio and the effective stress ratio. Under the finite element model imported into Msc. Patran, crack propagation analysis is performed by the growth ...
Yang and Chang (2013) used formula calculation and statistical analysis to compare RTGs' energy consumption, carbon emissions, and Electric Rubber-tired Gantry Cranes (ERTGs) at the Kaohsiung port container terminal. The results demonstrated that ERTGs can save 86.6 % of energy and reduce 67.8 %...
This takes into account the beneficial effect of a smoother load distribution through the underlay. It should also be mentioned that EN 1993-6 [16] defines certain values of wear-out that have to be taken into account for the calculation of the section properties of the rail. For example, ...
generally use two sets of the same drive mechanism. After the hoisting of the grab closed, all the load has a closed motor to bear. Support the motor due to unloading and speed increased, and finally to catch up with the motor and bear . So the same size of the two motor power ratin...
Loadmargincalculation 118 Example 118 Autocalculation 119 Efficiencyandinertiacalculation120 Tuningefficiencyvalue120 Tuninginertiavalue120 Hoistspeedlimittesting 121 Settingsanddiagnostics 121 Smoothlifting 121 Settingsanddiagnostics 122 Antisway 122 Antiswayfunctionaldescription 122 Totalpendulumarmlength12 Offset...
Calculation of Deflection and Camber for Pillar Jib Crane In this paper the authors deduce the formula for the deflection of cantilever endfor two kinds of structure type of Pillar Jib Cranes in common use,... Z Liu,F Lu,R Li 被引量: 0发表: 1995年 ...
8. The load detector according to claim 1, wherein the output-torque estimation unit includes: an obtaining unit configured to obtain the value of the current and a value of a voltage that are supplied to the motor, from the power converter, a loss calculation unit configured to calculate ...
Furthermore, when a plurality of tower cranes is used, the position calculation can be processed with respect to different tower cranes. When a plurality of tower cranes is disposed, the position of the material and the positions of the surrounding structures are determined with respect to each ...
However, when the second RFID reader126is located at hook block120or cab106, while the measurements can be made between the RFID tags and once two sides of the triangular plane, the sway determiner information can be added to further refine the third side calculation. For example, assuming on...
wherein: a maximum bearing load is calculated for a specifically occurring configuration and/or specifically occurring state parameters and/or specifically occurring operating parameters on the basis of a predetermined formula; and the calculation is verified on the basis of stored bearing load values....