|
|||||
|
|
| 无加强型波纹管稳定性计算公式中Sy值的确定 | |
| 引用本文： | 牛玉华,汤文成,吴友邦.无加强型波纹管稳定性计算公式中Sy值的确定[J].压力容器,2006,23(7):24-26,32. |
| 作者姓名： | 牛玉华 汤文成 吴友邦 |
| 作者单位： | 1. 东南大学,江苏,南京,210000;南京晨光东螺波纹管有限公司,江苏,南京,211153 2. 东南大学,江苏,南京,210000 3. 南京晨光东螺波纹管有限公司,江苏,南京,211153 |
| 摘 要： | LIMA标准提供了波纹管材料在设计温度下的屈服极限Sy值的计算公式，但该公式中从鉴定试验报告中获得的常温下退火态波纹管材料的屈服强度Sym值需要查找相关材料质保书才能得到，给设计带来许多不确定性。本文参照可靠性设计中确定材料许用应力的方法，采集近三年304薄板材料的质保书中数据，用统计技术的方法确定合理的Sym值，并据此将EJMA标准给出的Sy值的计算公式进行简化，提供了切实可行、使用方便的Sy的计算公式。 |
| 关 键 词： | EJMA标准 统计技术 屈服极限 波纹管 |
| 文章编号： | 1001-4837（2006）07-0024-03 |
| 收稿时间： | 2005-12-15 |
| 修稿时间： | 2005-12-152006-07-09 |
How to Determine the Value of Sy in the Equation for Calculation the Stability of Unreinforced Bellows |
|
| NIU Yu-hua,TANG Wen-cheng,WU You-bang.How to Determine the Value of Sy in the Equation for Calculation the Stability of Unreinforced Bellows[J].Pressure Vessel Technology,2006,23(7):24-26,32. | |
| Authors: | NIU Yu-hua TANG Wen-cheng WU You-bang |
| Affiliation: | 1. Southeast University, Nanjing 210000, China; 2. Nanjing Chenguang - Tora Bellows Expansion Joint Co., Ltd., Nanjing 211153, China |
| Abstract: | The EJMA standard has provide the equation for the yield strength at design temperature of bellows S_y,and the yield strength at room temperature of the actual bellows material in the annealed condition S_(ym) in the equation shall be gained from the certified test report.It's very unconvenience to get the value of S_(ym) when calculating the S_y of bellows.This paper collects the value of S_(ym) from the certified test reports of 304 material sheets used in recently three years,and refers to the method to determine the material allowable stress in reliability design,using the statistical method to determine the reasonable value of S_(ym),and using the result to simplify the equation given by the EJMA standard,as a result this paper gives the feasible and convenience equation of S_y. |
| Keywords: | EJMA standard statistical techniques yield limit bellows |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |