1) low cycle fatigue life
低循环疲劳寿命
1.
Elastoplastic finite element analysis and low cycle fatigue life prediction of an engine combustor case were completed.
对某发动机燃烧室外套进行了弹塑性有限元分析和低循环疲劳寿命预测。
2.
Accounting for creep and stress relaxations long-term life and low cycle fatigue life prediction method for gas turbine engine hot section is established.
建立了考虑蠕变和应力松弛的航空发动机涡轮叶片等高温构件的持久寿命和低循环疲劳寿命预测方法。
3.
On the basis of before-mentioned circs,the factors affecting the component low cycle fatigue life were investigated.
以某型发动机一级压气机轮盘为对象,应用该方法进行了关键部位榫槽的模拟件设计和低循环疲劳寿命考核试验。
2) LCF life
低循环疲劳寿命
1.
Considering the features of P/M superalloy,the traditional strength and LCF life design must be modified and validated to ensure the reliability of P/M superalloy turbine disk.
由于粉末高温合金材料的特殊性,为了保证粉末高温合金轮盘的可靠性,需要修正传统轮盘强度和低循环疲劳寿命设计技术并进行验证。
2.
The LCF life of the turbine disk is evaluated using the method provided by SPEY MK202 engine stress standard(EGD-3).
对某涡桨发动机高压涡轮盘进行了有限元应力分析,结果表明:在各工作状态,涡轮盘的应力水平在各工作状态都处于弹性范围,最大应力点始终处于轮盘的偏心孔处;采用斯贝MK202发动机应力标准(EGD-3)提供的方法,对该涡轮盘的低循环疲劳寿命进行了估算。
3) Low cycle fatigue
低循环疲劳
1.
Probability analysis for the low cycle fatigue life of a turbine disk
涡轮盘低循环疲劳寿命的概率分析
2.
The effects of trace Mg and Zr on the high temperature north rupture strength and low cycle fatigue of GH 4113B turbine disk were investigated.
研究了微量镁和锆对ＧＨ４１３３Ｂ合金涡轮盘高温缺口持久性能及使用性能下的高温低循环疲劳性能的影响。
3.
The modified formula was derived referring to correlative literatures,which can consider the effect of multiple critical features in the low cycle fatigue(LCF) life prediction.
航空发动机轮盘低循环疲劳危险部位一般是多个,而且具有相同的温度和应力水平。
4) LCF
低循环疲劳
1.
Research on Prediction Model for Disc LCF Life and Experiment Assessment Methodology;
轮盘低循环疲劳寿命预测模型和试验评估方法研究
5) low cycle fatigue life
低周疲劳寿命
1.
Evaluation of the low cycle fatigue life of 2(1/4)Cr-1Mo steel under complicated stress state;
2(1/4)Cr-1Mo钢复杂应力状态低周疲劳寿命评估
2.
By means of low cycle-fatigue test controlled by constant strain amplitude(△_ε),the relation among cycle stress amplitude(△_σ),maximum stress (σ_(max))and cycle number(N) of a low carbon low alloy ultra-high strength steel wire was determined and a high carbon Patenting steel wire was adopted as reference, The effect of warm deformation treatment on low cycle fatigue life was also studied.
结果得出，低碳低合金钢丝比高碳Ｐａｔｅｎｔｉｎｇ钢丝具有高的低周疲劳抗力，温形变处理又可提高低周疲劳寿命３０％～３５％。
3.
The effect of warm deformationtreatment on the low cycle fatigue life of these steel wires were studied.
研究了温形变处理对钢丝低周疲劳寿命的影响。
6) LCF life
低周疲劳寿命
1.
A new method for reliability analysis of discs′ LCF life is presented.
从Ｍａｎｓｏｎ－Ｃｏｆｉｎ公式出发，建立了新的低周疲劳寿命失效临界函数及其对随机变量的导数公式，并结合概率有限元法求得轮盘低周疲劳寿命的可靠度，从而解决了采用Ｌａｎｄｇｒａｆ寿命公式的不足。
补充资料：低循环疲劳
分子式：
CAS号：
性质：当容器或构件，在使用期内，产生应力循环的次数在102～103之间的疲劳问题称为低循环疲劳。当循环次数小于102时，在工程上可以不考虑此容器或构件的疲劳效应。生产中使用的容器，一般的加压、卸压重复次数不多，均可视为低循环疲劳。
CAS号：
性质：当容器或构件，在使用期内，产生应力循环的次数在102～103之间的疲劳问题称为低循环疲劳。当循环次数小于102时，在工程上可以不考虑此容器或构件的疲劳效应。生产中使用的容器，一般的加压、卸压重复次数不多，均可视为低循环疲劳。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条