Virtual Wiring And Installing Simulation Of Cables

Wiring of cables is an important step in layout design of electro-mechanical products. Its task is to determine the wiring information of cables, including the route, length, weight of cables, and the position of supports. Conventional wiring is accomplished via simulative installation based on physical prototype, with flexible string instead of cables and rubberized fabric instead of supports. The method spends high cost and long time, without global planning. In order to resolve the shortcoming of conventional wiring, this dissertation develops the virtual wiring and installing simulation based on human-computer interaction. The research is sustained by the fund of CAEP.This dissertation expatiates the concept and process of virtual wiring based on human-computer interaction systemically, and also introduces the pivotal technologies in the method. First, the geometrical model of cables is founded based on energy-optimized method. In the method, cables are described using B-Spine, embodying them different weight and distortion. Energy-optimized method can improve the precision of modeling. Second, the object models of cables and rigid parts are founded. The object models can sustain sharing and reusing of data in wiring of cables. Third, route planning technique is discussed. This dissertation takes route planning for a stepwise-optimized process. Based on this principia, rules of route planning, the route planning of single cable and optimizing method of cables' route are introduced. Besides, setting of supports is discussed.Installing simulation is an effective means to checkout the results of virtual wiring. Associating the installing simulation of cables with virtual assembly, this dissertation realizes the virtual assembly of rigidity-flexibility products. First, the kinematical model of cables is founded based on inverse kinematics method. According to the method, cables are dispersed into a series of poles connected with joints. Inverse kinematics method can ensure invariability of cables' length and real-time simulating. Then, unifying the cables and rigid parts, this dissertation sets up the hierarchy model of rigidity-flexibility products faced assembly. At last, Assembly Sequences Planning technology of rigidity-flexibility products is introduced. According to the assembly sequences, the virtual assembly of rigidity-flexibility products is realized, and also the installing simulation of cables.To validate the research in this dissertation, a product is selected to realize virtual wiring and installing simulation with the virtual wiring of cables based on human-computer interaction. The results indicate that the method can gain the logical wiring information of cables.