Research Of System And Method Of Hull Block Accuracy Controlling

The market of shipbuilding is amplitude but with furious competition. The shipbuilding in china exists inferior position contrast to Japanese and Korea shipbuilding on technical aspect,expecially on hull accuracy controlling technical aspect. The technique of hull block accuracy controlling is main part of hull accuracy controlling. It plays the important role on shortening shipbuilding period,reducing shipbuilding cost and improving shipbuilding quality etc….Researching the technique of block accuracy controlling is needed for lean shipbuilding , it has feasibility on production ,technique ,equipment and tools,software and economy etc…aspects. It is key to found an integrated system of block accuracy controlling.The paper defines the content and aims of controlling researching block accuracy. According to reference document and production fact,all kinds of type block accuracy standards are defined. The basic principle and model of block accuracy controlling are put forward. The six factors which affect the system of block accuracy controlling-exterior environment,organization and staff, equipment and tools,accuracy design,production procession and management rules are researched. The compensation values and their measure methods of steel cutting,curve machining,assembling and welding etc working procedure in block accuracy controlling are confirmed. The implementer phases of compensation values are confirmed,that offer design guarantee for improving block accuracy.The detail procession of actualizing the system of block accuracy controlling is introduced,many implementer advices are put forward. To three kinds of block which affect ship power function-the rudder based block ,principal axis holding block and engine based block,the detail controlling items and methods are confirmed,which can ensure the blocks'accuracy satisfied standard.