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- By fatigue test of bolt material,the stress-strain life curve is obtained. 通過(guò)螺栓材料的疲勞試驗,獲得了材料的應力應變壽命曲線(xiàn);
- Conduct material Fatigue Testing and Thermal stress test. 進(jìn)行材料疲勞測試和熱應力測試。
- The influence of the level of the pretreated short fibre on tensile strength,tear strength,flex fatigue and conductivity of the acetylene black filled VMQ/EPDM blend vulcanizate was studied. 研究了預處理短纖維用量對乙炔炭黑填充甲基乙烯基硅橡膠（VMQ）/EPDM共混硫化膠拉伸、撕裂、耐屈撓疲勞和導電性能的影響。
- Based on the program load spectrum, intensified fatigue test for rearaxleare made. 在編制程序載荷譜的基礎上,對后橋殼體進(jìn)行了強化疲勞試驗。
- The method of correlation factor is an effective method to loads transacting of the fatigue test of airplane structure. 相關(guān)系數法是一種有效的飛機疲勞試驗載荷處理方法。
- In order to overcome such problem, a new technique named as VFT (Virtual Fatigue Test) has been offered in this paper. 為了克服這兩個(gè)難點(diǎn)，論文提出了基于虛擬樣機理論的“虛擬疲勞試驗”技術(shù)。
- Fatigue test is done on medium carbon steel specimens with small surficial pre-cracks and single-edge pre-cracks. 采用帶有微小表面預制裂紋和邊緣預制裂紋的中碳鋼試驗片進(jìn)行了疲勞實(shí)驗。
- The piston rod of family sedan's rear snubber fractured duringearlier stage of rotary bending fatigue test. 家轎后減振器活塞桿在進(jìn)行旋轉彎曲疲勞試驗時(shí)出現早期斷裂。
- Tne formula under given fracture length is verified by fatigue test datas of welded box girder on overhead travelling crane. 并用橋式起重機焊接箱形梁的疲勞試驗數據，對給定裂紋長(cháng)度時(shí)構件疲勞可靠度的計算公式進(jìn)行驗算。
- Abstract： The piston rod of family sedan’s rear snubber fractured during earlier stage of rotary bending fatigue test. 摘 要： 家轎后減振器活塞桿在進(jìn)行旋轉彎曲疲勞試驗時(shí)出現早期斷裂。
- At present,tuning-folk resonance plate structure is common used in crankshaft bending fatigue test bench in domestic diesel engine industry. 目前,國內柴油機行業(yè)普遍使用的曲軸彎曲疲勞強度試驗臺架,均采用音叉共振板結構。
- The effect of temperature on cyclic fatigue life and fracture mechanism on 2524-T4 aluminum alloy was studied by cyclic fatigue test,SEM and TEM. 采用疲勞實(shí)驗、SEM及TEM等分析測試手段,研究溫度對2524-T4合金疲勞壽命及斷裂機制的影響。
- Metallographic analysis,tension test,fatigue test and SEM analysis were conducted on the TA15 titanium alloy welded joint. 對TA15鈦合金板材電子束焊接試樣進(jìn)行了金相分析和靜力試驗、疲勞試驗和掃描電鏡(SEM)分析。
- When the fatigue test is carried on the blade of aircraft engine, long-time actuating vibration must be applied to the blade. 摘要飛機發(fā)動(dòng)機葉片進(jìn)行疲勞試驗時(shí)，需對葉片進(jìn)行長(cháng)時(shí)間激振以完成葉片的疲勞試驗。
- Pb-free solder;BGA;thermal cycling;dynamic fatigue tests;electrical analysis. 關(guān)鍵詞:無(wú)鉛焊錫;球格陣列構裝;冷熱循環(huán)試驗;動(dòng)態(tài)疲勞試驗;電性分析
- The fatigue test results show that the higher shock impedance of overlays,and the higher laser power density,the greater the increase of fatigue life of aluminum alloy. 疲勞試驗結果表明：約束層沖擊阻抗越大，激光脈沖功率密度越高，鋁合金激光沖擊處理后疲勞壽命的提高越顯著(zhù)。
- The fatigue test results have also shown the effect of strengthening mechanism and confirmed the presence of a break in the fatigue life curve in age hardened aluminum alloys. 疲勞試驗結果還顯示了強化機制的影響，證實(shí)了時(shí)效強化合金疲勞壽命曲線(xiàn)的雙斜率的存在。
- All subjects performed quadriceps maximal voluntary contraction(MVC) and fastest speed leg extension with different levels(75%,60%,45% 1RM),and 45% fatigue test to all-out. 受試者實(shí)施股四頭肌最大等長(cháng)收縮、最快速度不同強度(75%25、60%25、45%251 RM)的伸膝動(dòng)作及45%25的疲勞測試,記錄向心期不同強度的MMG訊號。
- By the new (equivalent) strain equations, M-C(Manson-Coffin)fatigue models of Zr-4 alloy were obtained based on (the strain) fatigue test results of Zr-4 alloy. 由應變等效方法和疲勞試驗結果;得到了Zr 4合金的M C(Man son Coffin)壽命估算模型.
- A simple test will show if this is real gold. 簡(jiǎn)單的試驗就能證明這是否是真金。
