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structural life
相关语句
  结构寿命
     Establishment of Aircraft Structural Life Envelope
     飞机结构寿命包线的建立
短句来源
     As is shown by the modern design technology,the more concrete data of the load characters,the more accurate the prediction of the structural life will be.
     现代设计技术表明 ,载荷特征掌握越具体 ,结构寿命预计越准确。
短句来源
     Service Life Supervision for Individual Aircraft Structural System Based on Aircraft Structural Life Envelope
     基于飞机结构寿命包线的飞机结构单机寿命监控
短句来源
     Determination of Aircraft Structural Life Envelope
     飞机结构寿命包线的确定方法
短句来源
     The establishment of ASLE will pave the way for the structural life(i.e.fatigue life and calendar life) supervision for individual aircraft.
     飞机结构寿命包线的建立将为进一步对飞机结构进行单机寿命(疲劳寿命与日历寿命)监控奠定基础。
短句来源
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  “structural life”译为未确定词的双语例句
     The S-N curve is the base of calculating fatigue structural life.
     S -N曲线是用名义应力法预测结构疲劳寿命的基础。
短句来源
     3. The aircraft structures are acted by mechanical loading and corrosive environment alternatively in service, and usually the corrosive environment is dominant for the structural life. The new model of assessing the calendar life of aircraft structures isbrought forward. In this model.
     3.针对我国飞机服役情况,研究了飞机结构日历寿命的评估方法,提出了停放腐蚀环境起主导作用的确定飞机结构日历寿命的新模型。
短句来源
     popularize the theory of traditional random reliability to the theory of fuzzy-random reliability, and discuss the theory of reliability of the whole-course in structural life;
     还探讨了结构生命全过程可靠度理论,并结合实际情况提出了减少人为错误的对策。
短句来源
     For improve this condition, according tothe theory of Structural Life Cycle Method, this paper develop a 3-dimensionmodeling CAD system for offshore platform design by means of making seconddevelopment of AutoCAD with Visual Basic 6.0 and developing an EngineeringDatabase with extending Microsoft SQL Sever.
     本文针对这种情况,按照结构化生命周期法的原理,采用Visual Basic 6.0 对 AutoCAD 进行二次开发,扩展 Microsoft SQL Sever 关系数据库为工程数据库,开发出适合海洋平台设计使用的海洋平台三维建模 CAD(计算机辅助设计,ComputerAided Design)系统。
短句来源
     This thesis adopt the development means of management information system of structural life cycle , in the lighting of the reality of management information system of hydrocarbon storage company to carry on comprehensive system analysis and design about materials management information system of the company, and give out a bit more overall analysis and design archives of materials management information system of hydrocarbon storage company.
     本论文采用结构化生命周期的管理信息系统开发方法,结合油气储运公司物资管理系统的实际,对油气储运公司物资管理信息系统进行了全面的系统分析与设计工作,给出了较为完整的油气储运公司物资管理信息系统的分析与设计文档。
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  相似匹配句对
     Life
     生活(英文)
短句来源
     Life
     生命
短句来源
     Establishment of Aircraft Structural Life Envelope
     飞机结构寿命包线的建立
短句来源
     Determination of Aircraft Structural Life Envelope
     飞机结构寿命包线的确定方法
短句来源
     Structural Biology
     结构生物学的时代己经开始
短句来源
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  structural life
These structural standards are designed to provide a reasonable level of Structural Life-Safety to the building occupants.
      
Generally, the structural life of both commercial and military aircraft is based on flight hours and number of fatigue cycles.
      
Early detection of cracks is a key element to prevent catastrophic failure and prolong structural life.
      


A new structural fatigue life prediction method is presented in this paper.Nominal stress spectrum, stress severity factors and constant life curves according to nominal stress for a structure are known. The curves can be changed into the structural constant life plots of local stress(strain) , then the structural life is estimated in accor-dence with calculated local stress-strain histories and the plots. Still calculated local stress-strain histories can be changed into nominal stress histories, then...

A new structural fatigue life prediction method is presented in this paper.Nominal stress spectrum, stress severity factors and constant life curves according to nominal stress for a structure are known. The curves can be changed into the structural constant life plots of local stress(strain) , then the structural life is estimated in accor-dence with calculated local stress-strain histories and the plots. Still calculated local stress-strain histories can be changed into nominal stress histories, then the structural life is estimated, by means of the structural constant life curves according to nominal stress.The method has the advantage of nominal stress method and local strain method to counteract themselves weakness.

本文介绍了一种估算结构疲劳寿命的新途径:在结构名义应力谱、应力严重系数/知名义应力等寿命图已知时,把结构件的名义应力等寿命图转换成真实应力等寿命图,用计算出的真实应力、应变查该等寿命图来估算出结构的寿命,或者把用诺伯法确定出的局部应力、应变历程转换成当量名义应力水平后查结构名义应力等寿命图来估算结构的疲劳寿命。这样,同时运用了名义摩力法和局部应力、应变法的优点,使寿命计算更合理。

Many papers have been presented to introduce the deleterious effects of fretting damage on fatigue strength: reductions of over 50% are reported for simple coupon type specimens. In the aircraft failure investigating, the presence of fretting damage on the failure areas is also frequently noticed, especially the high chance of fretting damage occurrence appears in the aircraft structure where two pieces of material are connected by rivets,bolts, pins and interference fit. To what extent this damage effects on...

Many papers have been presented to introduce the deleterious effects of fretting damage on fatigue strength: reductions of over 50% are reported for simple coupon type specimens. In the aircraft failure investigating, the presence of fretting damage on the failure areas is also frequently noticed, especially the high chance of fretting damage occurrence appears in the aircraft structure where two pieces of material are connected by rivets,bolts, pins and interference fit. To what extent this damage effects on airframe structural life has not been determined, but is certainly a serious and noticeable problem.The microcosmic characters of fretting damage of high strength aluminum-alloy riveted fasteners and the effects of different type of treatments applied to the faying surfaces on the fatigue strength are analysed in details. The results of tests show that the fatigue life of riveted fasteners can be generally increased with different degree if an appropriate type of treatment is employed for the faying surfaces. The method of bonded and riveted joint studied in the paper is the effectively protective measure to prevent fretting damage occurred in riveted fasteners.When the axial interchangeable stress σmax is less than 125MPa the fatigue life of the bonded and rivetted joint specimen is over 60% higher than that of the interference riveted joint specimen.

本文详细地分析了LY_(12)CZ铝合金铆接件微动损伤的微观特征以及各种搭接表面处理方法对疲劳强度的影响。试验结果表明:对搭接表面采用恰当的处理方法,铆接件的疲劳寿命一般均有不同程度的提高,其中,胶铆结构的采用是防止铆接件产生微动损伤的有效措施。当轴向交变应力σ_(max)=125MPa以下时,胶铆试件的疲劳寿命比干涉铆接的疲劳寿命提高60%以上。

A formula of three-parameter power function for strain-life fatigue curves is presented in this paper. Fatigue limits of materials are considered in the formula. Thus it can fit strain-life fatigue data better and calculate lives of structures more accurately than the Manson-Coffin formula. Besides, the tests of determining e-N curves of materials are simplified by it. Many fatigue results of materials have satisfactorily been treated by this formula. It is simple and convenient for structural life-prediction....

A formula of three-parameter power function for strain-life fatigue curves is presented in this paper. Fatigue limits of materials are considered in the formula. Thus it can fit strain-life fatigue data better and calculate lives of structures more accurately than the Manson-Coffin formula. Besides, the tests of determining e-N curves of materials are simplified by it. Many fatigue results of materials have satisfactorily been treated by this formula. It is simple and convenient for structural life-prediction.

给出了一种描述ε-N曲线的三参数幂函数公式。由于该公式考虑了疲劳极限,所以与著名的Manson-Coffin公式相比,它不但能更好地拟合各种材料的应变-寿命试验数据,简化了ε-N曲线的测试工作,而且可以更加方便和精确地计算结构的损伤和寿命。

 
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