Analysis and Simulation of the Electrical-Differential System of a Grab-Ship-Unloader-Crane

Abstract

In the field of port handling for bulk-cargo with heavy load and high speed, the differential gear box is usually used for towing wire ropes, and then realizing the Horizontal transport and vertical unloading of goods. However, the design and manufacture of gear device which is difficult to maintenance is of high cost. Thus, there is a kind of electric differential system to realize the loading and unloading of cargo at present. This article focus on the transmission mode and the process of loading-unloading of electric differential device. With the kinematic model based on the Lagrange's equation, the electrical differential system state model is established. Several AMESim simulations of the system is used to analyzing the energy transfer of combined action under the condition of electric differential. It helps to learn which path are used and the proportion on each line of energy. Finally, in this article, the difference of the energy transfer characteristics between the traditional mechanical transmission and the electrical differential drive system are analyzed. It provides guidance for design and use of equipment transmission system.

Keywords

• ASMSim
• electrical differential
• energy transfer
• Lagrange’s equation