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- Torsion Fatigue Strength Test for Nodular Cast Iron Crankshaft of Engine 发动机球铁曲轴扭转疲劳强度的试验研究
- torsional fatigue strength 疲劳强度,扭转疲劳强度
- Strength properties are commonly referred to as tensile strength, bending strength, compressive strength, torsional strength, shear strength and fatigue strength. 强度性能一般涉及到抗张强度，弯曲强度，耐压强度，抗扭强度，切变强度和疲劳强度。
- Compressive residual stress are the main factor in the increase of torsion fatigue limit. 喷丸后扭转疲劳极限提高的主要原因是残余压应力的作用。
- Of gear foot and contact fatigue strength of gear profile. 齿根弯曲疲劳强度,齿面接触疲劳强度。
- Compressive residual stress are the main factor in the increase of torsion fatigue limit . 喷丸后扭转疲劳极限提高的主要原因是残余压应力的作用。
- A layer of hot-dipped galvanizing causes a considerable reduction in the fatigue strength. 热浸镀锌层引起疲劳强度的显著降低。
- Safe travel life of the lunar rover with planetary wheel, which we researched and designed is mainly dependent on the torsion fatigue life of the torsion bar spring in its suspending frames. 研制的行星轮式月球车的安全行驶寿命主要取决于扭杆弹簧悬架中扭杆弹簧的扭转疲劳寿命。
- However, a low fatigue strength detail or a large built-in defect may produce only a single significant crack. 但是，疲劳强度较低的细节部分或较大的内部缺陷可能只产生一条很大的裂纹。
- Gas cylinders. Fatigue strength testing under repeated pressurizing for liquefied or dissolved compressed gases. 气瓶。液化或熔解压缩气体气瓶的反复加压疲劳试验。
- And when shot peening treater, the fatigue strength of the chian will improve 12.3%. 经喷丸处理链条疲劳强度可提高12.;3%25。
- In view of this, the tranditional fatigue strength condition under nonsymmetrical circulation is incorrect. 由此可知，当前通用的非对称交变应力的疲劳强度条件是不正确的。
- MECHANISM MAPOF TORSIONAL FATIGUE FRACTURE 扭转疲劳断裂机制图
- The scope of the work included connecting strength,tightness and fatigue strength of the expansionjoints. 研究范围包括胀接结构的连接强度，密封即耐压性能，疲劳强度等。
- In this paper, the fatigue strength of the peened welde d joints under over loading is studied. 结果表明:经拉伸过载后,超声冲击处理焊接接头的疲劳强度有所下降,但并不十分严重。
- The hard second phase, for example martensite, contributed to the superior fatigue strength and higher threshold value. 较硬的第二相，如马氏体，贡献了出众的疲劳强度和较高的开始值。
- reverse torsion fatigue testing machine 反向扭转疲劳试验机
- alternating torsion fatigue test 交变扭曲疲劳试验
- However, the current theory for fatigue strength design is based on Hertz theory which is only applicable to dry contact of smooth surfaces. 然而,现行的齿轮传动接触疲劳强度设计基于仅适用于光滑表面干接触的Hertz理论。
- With strength increases, the potential for further improving bend fatigue strength declined, while that of bend fatigue life improves. 随着结构强度的提高，弯曲疲劳强度的提高幅度呈下降趋势，但疲劳寿命的提高幅度呈上升趋势。
