1) reversal of load
变号荷载
2) reversal of load
荷载变号
3) mutative load
交变载荷
1.
This paper contains a detailed experiment analysis on the fracture section characteristic,metallographic organization,chemical consists and mechanics property of the drill-stem subs,and performs a set of analysis calculation on the mutative load which putting on the drill-stem subs.
推断出转换接头的断裂原因:在使用过程中存在选型不合理,在弯曲、拉压、扭转、冲击、振动等交变载荷的复合作用下,在危险截面产生疲劳裂纹,从而导致转换接头疲劳断裂。
2.
This paper contains a detailed experiment analysis on the fracture section characteristic,metallographic organization,chemic consists and mechanics property of a drill pipe and a set of analysis calculation on the mutative load which putting on the drilling pipe.
在弯曲、拉压、扭转、冲击、振动等交变载荷的复合作用下,在钻杆外表面的腐蚀坑底部产生疲劳裂纹,随着裂纹的不断扩展,导致钻杆腐蚀疲劳断裂。
4) variable load
可变载荷
1.
The key technology points are analyzed,including variable load,double derrick system,riser storage and engine room.
介绍新一代深海半潜式钻井平台的总布置理念、思路,分析可变载荷、双井系统、隔水管存放形式、机舱数目与布置等关键技术点,并对平台总布置予以综合说明。
5) variable amplitude loading
变幅载荷
1.
In the present study, the fatigue tests under tension-tension variable amplitude loading (VAL) are carried out on 45 carbon steel, which is similar to the AISI 1045 steel, to investigate the probability distribution of fatigue life under VAL and investigate the validity of a new simulation model proposed in the paper for the fatigue test and the probability distribution of fatigue life under VAL.
根据 45钢切口件疲劳寿命表达式中疲劳抗力系数和疲劳门槛值物理意义及概率分布 ,提出了一种新的模拟 45钢切口件变幅载荷下疲劳寿命实验及其分布的方法 ,并与拉 -拉变幅载荷下的实验结果进行了比较。
2.
The fatigue life with given survivability under variable amplitude loading is predicted,and checked by simulating test using Monte Carlo method.
预测了变幅载荷下给定存活率的疲劳寿命，并用蒙特卡洛法模拟变幅载荷下疲劳试验进行了验证。
6) Cyclic Loading
交变载荷
1.
Because of the randomness of component chain transmission, this paper introduces the SFEM to the iterative formulas of EFEM under cyclic loading to obtain the random re.
针对复杂的交变载荷,推导了交变载荷下弹塑性随机有限元的迭代格式,迭代格式中,采用运动强化模型反映塑性变形引起的各向异性和包辛格效应,运用Jhansale模型描述材料的瞬态应力应变关系 由于链传动的随机因素,将随机有限元方法引入到交变载荷下弹塑性有限元的迭代格式中,得到局部应力应变的随机响应,为链传动铰链磨损分析提供了更精确的依
2.
The iterative formulas of elastoplastic stochastic finite element method (SFEM) under cyclic loading are deduced and the random responses of local multiaxial stress and strain are calculated.
推导了交变载荷下弹塑性随机有限元的迭代格式,计算了局部多轴应力应变的随机响应。
补充资料：变号
1.改变帝号。 2.改变旗号。
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