Development of Simulator for Line Heating Process Based on Knowledge of Skilled Worker

基于熟练工人知识的线加热过程模拟器的开发

基本信息

批准号：
14350523
负责人：
TERASAKI Toshio
金额：
$ 3.46万
依托单位：
Kyusyu Institute of Technology
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2002
资助国家：
日本
起止时间：
2002 至 2004
项目状态：
已结题

项目摘要

We investigated the knowledge of workers doing line heating process in the ship building field and arranged the factors related to the line heating conditions used for making the transverse shrinkage, the angular distortion and the torsional deflection. Moreover, we surveyed many papers which dealt between the deformations and the heating conditions of the line heating process by the technology. It becomes clear that the technology of the line heating process does not exist, but only the skill exists. So we focused on the bowl shape and the saddle shape representing the line heating process, and developed the simulator for line heating process based on the knowledge of skilled worker, namely, studied by the torus model based on the differential geometry. It was made clear that the transverse shrinkage was much important to make the bowl and the saddle shapes. For the bowl shape, the transverse shrinkage distribution must be the ratio of 1:3:5:7:10 from the middle point of plate width t … More o the edge of plate width. This fact obtained from the differential geometry agreed with the knowledge of the skill workers who used as triangle heating. For the saddle shape, the transverse shrinkage distribution was given by the technology based on the differential geometry. This fact also agreed with the knowledge of the skill workers who used as diamond heating. We proposed the similarity law of the plate sizes and the heat source. When the similarity law is proved in the line heating process, the plate size of 14m can change the plate size of 500mm, which can be used in the laboratory. The important point is the similarity law of heating source. We can use the laser as small heat source, then the laser forming was used for proving the theory of the similarity law. Moreover, we developed the numerical method for predicting the line heating process. We had the necessary tools for developing the simulator, but did not enough. It becomes clear how we decide the transverse distributions for making the purpose shape which is the part of ship shell. We need the knowledge of other skill worker which makes the shell expansion plan from the ship shell. This knowledge gives the positions and the values of transverse shrinkage, and is an implicit knowledge in each ship company. We tried to make from the implicitness to the technology. We succeed to predict the expansion plan from the torus model. However, our research does not reach the final goal of making the ship shell. When this technology completes, the simulator will have to complete. The important points are the positions and the values of transverse shrinkage. Less

我们研究了在船舶建筑物场进行线加热过程的工人的知识，并安排了与用于使横向收缩，角失真和扭转偏转的线加热条件相关的因素。此外，我们调查了许多论文，这些论文在技术加热过程的变形和加热条件之间进行了处理。很明显，线路加热过程的技术不存在，而只有技能存在。因此，我们专注于代表线加热过程的碗形状和鞍形形状，并根据熟练工人的知识开发了用于线加热过程的模拟器，即，基于差异几何形状，圆环模型研究了。清楚地表明，横向收缩对于制作碗和马鞍形状非常重要。对于碗形状，横向收缩分布必须是板宽度中间的1：3：5：7：10的比率。从差异几何形状获得的事实与用作三角供暖的技能工人的知识一致。对于鞍形状，横向收缩分布由基于差异几何形状的技术给出。这一事实也同意用作钻石加热的技能工人的知识。我们提出了板尺寸和热源的相似性定律。当在线加热过程中证明相似性定律时，板尺寸为14m可以改变500mm的板尺寸，可在实验室中使用。重要的一点是加热源的相似性定律。我们可以将激光用作小热源，然后将激光形成用于提供相似性定律的理论。此外，我们开发了预测线加热过程的数值方法。我们有开发模拟器的必要工具，但还不够。很清楚，我们如何确定横向分布来制作目的形状，这是船舶外壳的一部分。我们需要其他技能工人的知识，这些技能工人可以从船舶外壳中扩展壳计划。这些知识赋予了横向收缩的位置和价值，并且是每个船公司的隐含知识。我们试图从技术到技术的隐含性中产生。我们成功地预测了Torus模型的扩展计划。但是，我们的研究并没有达到制造船舶外壳的最终目标。该技术完成后，模拟器将必须完成。要点是横向收缩的位置和值。较少的