Study on Ultrasonic Fatigue of 40CrNiMoA Steel;
40CrNiMoA钢超声疲劳研究
The ultrasonic fatigue test method has been used to investigate the gigacycle fatigue properties of commercial titanium alloy TC4 dipped into physiological saline solution for 24 h prior to testing.
用超声疲劳试验技术研究了室温下生理盐水中浸泡24 h后Ti-6A l-4V钛合金(TC4)的超高周疲劳性能,并与未经浸泡的同种材料的超声疲劳性能进行了对比分析。
The fatigue life (S-N) curves of 40Cr steel for smooth specimens and two kinds of notched specimens, in the 105 - 1010 cycles region, were determined using ultrasonic fatigue testing technique.
用超声疲劳试验方法测定了40Cr钢光滑试样和缺口试样在105-1010周次范围内的疲劳寿命(S-N)曲线,研究了缺口应力集中对疲劳性能的影响。
As to the sonic fatigue problem of flight vehicle thin panel structure under high-level random acoustic loads,the method for estimation of the response power spectrum of thin panel with multimodes under acoustic load is presented.
针对飞行器薄壁结构声疲劳问题,研究了具有多模态的薄壁板结构在声载荷作用下振动响应谱的估算方法。
Presenting the characteristics of advanced air inlet structure and loads,researching the air inlet structural layout and detail design technologies based on geometry nonlinear analysis technique,and the sonic fatigue test specimen design and sound load spectrum determination technologies are the main contents of the paper.
研究了进气道结构完整性评定的两项关键技术:即基于结构几何非线性数值分析的结构总体和细节参数的确定技术和声疲劳试验件的设计及声载荷谱的制定技术。
The study on dynamic response of thin-wall structure excited by acoustic loads is the basis to evaluate and design the structure sonic fatigue.
研究薄壁结构在声载荷激励下的随机振动响应问题是进行结构声疲劳估算和设计的基础。
The purpose and significance of measuring and analyzing combustion noise, which is the prerequiste for studying acoustic fatigue problems of engine combustors and active control of combustion stabilities,was presented in this paper.
本文论述了测量分析燃烧噪声的目的和意义，它是进行燃烧室声疲劳研究及燃烧稳定性主动控制的基础。
Study on Ultrasonic Fatigue of 40CrNiMoA Steel;
40CrNiMoA钢超声疲劳研究
Study of the Ultrasonic Fatigue Behavior and Mechanism for Nickel-Titanium Endodontic Files;
镍钛根管锉超声疲劳行为及其机理研究
Investigation on Fatigue Behavior of Materials in Very High Cycle Regime under Vibratory Loading;
超声振动载荷下材料的超高周疲劳性能研究
Fatigue Behavior of Welded Joints After Ultrasonic Impact Treatment Under Combined Cycle Fatigue Loading
双周疲劳载荷作用下超声冲击处理态焊接接头疲劳行为
Fatigue behavior of welded joints under combined cycle fatigue with ultrasonic component
超声频分量双周疲劳载荷作用下焊接接头疲劳行为
Rresearch the New Method of Detecting Muscle Fatigue by Using Ultrasound Imaging;
用超声图结合肌电图评估肌肉疲劳的方法研究
Fatigue Performance Improvement of 22SiMn2TiB Steel Welded Joint by Ultrasonic Impact Treatment
超声冲击处理改善22SiMn2TiB钢焊接接头的疲劳性能
The Fatigue Behavior of Welded Joints by Ultrasonic Peening Treatment in Ultra-long Life Region
超长寿命区间超声冲击处理焊接接头的疲劳行为
Numerical analyses of evaluation of fatigue damage in solid plates using ultrasonic Lamb wave amplitude spectra
用超声兰姆波幅度谱方法评价固体板材疲劳损伤的数值研究
Effect on Fatigued Life of 7B04 Aluminum Alloy by Ultra-sonic Nanometer Treatment
超声冲击纳米化对7B04高强铝合金疲劳性能的影响
Mechanism on Improvement of Fatigue Performance of Pre-corroded 7A52-CZ Aluminum Alloy by Ultrasonic Deep Rolling Treatment
超声深滚处理改善预腐蚀7A52-CZ铝合金疲劳性能机理
Fatigue Behavior of GCr15 Steel in Gigacycle Regime;
GCr15钢超高周疲劳行为的研究
Study on the Very-high-cycle Fatigue Behavior of 40CrNiMoA Steel;
40CrNiMoA钢超高周疲劳行为研究
Analysis on Fatigue Life to the Air Cylinder Bolt in Super High Pressure Compressor
超高压压缩机气缸螺栓疲劳寿命评估
Super long life fatigue behaviors of Q345 bridge steel
Q345桥梁钢超长寿命疲劳性能研究
RELIABILITY RESEARCH ON THE FATIGUE FRACTURE BEHAVIOR IN VERY HIGH CYCLE REGION
超长寿命疲劳破坏行为的可靠性研究
Fracture Mechanism of GCr15 Steel in Very High Cycle Fatigue
GCr15钢超长寿命疲劳破坏的机理
Research on wave-loading fatigue of drilling riser in ultra-deep water drilling
超深水钻井系统隔水管波致疲劳研究