提高疲勞強度 的英文怎麼說
中文拼音 [dīgāopíláoqiángdù]
提高疲勞強度
英文
fatigue strengthening- 提 : 提動詞(垂手拿著) carry (in one's hand with the arm down)
- 高 : Ⅰ形容詞1 (從下向上距離大; 離地面遠) tall; high 2 (在一般標準或平均程度之上; 等級在上的) above...
- 疲 : 形容詞(疲乏; 勞累) tired; weary; exhausted
- 勞 : Ⅰ動詞1 (勞動) work; labour 2 (煩勞) put sb to the trouble of; trouble sb with sth : 勞您費心...
- 強 : 強形容詞(強硬不屈;固執) stubborn; unyielding
- 度 : 度動詞[書面語] (推測; 估計) surmise; estimate
- 提高 : raise; heighten; enhance; increase; improve; raising; lifting up grading; enhancement; hoist (in...
- 疲勞 : 1. (疲乏勞累) tired; fatigued; weary; become fagged 2. (機能或反應能力減弱) fatigue; strain 3. [物理學] fatigue
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Results show that in the middle life range the fatigue strength of interference - fit riveting increases by about 25 % compared with that of conventional riveting
研究結果表明:在中壽命區,干涉配合鉚接的疲勞強度比普通鉚接的疲勞強度提高約25 % 。4. the choice reference of medium belt material is came up with : with higher compress intensity, pull intensity and bend fatigue intensity, with middle or low elastic modulus, besides fine heat - resistant, wearable, oil - fast, water - fast anti - impactive capabilities
4 、提出並分析了介質帶材料的合理選擇原則:壓縮強度、拉伸強度和彎曲疲勞強度高和韌性好的中低彈性模量復合材料,此外還需具有良好的耐熱、耐油耐水性、耐磨性、抗沖擊性、耐候性等。The fatigue alternating stress, which are highly variable in time, subject the crankshaft to very high and complex loading that induced to fatigue breakdown. the crankshaft design and manufacture must therefore precise calculations of the fatigue characteristics
柴油機球鐵曲軸在工藝性和成本上佔有一定的優勢,通過滾壓強化工藝,疲勞強度有很大程度的提高,因而在國外得到廣泛應用。Among the results of these researches, cylindrical gears with curvilinear tooth trace have merits as follows : higher bending stress, low noise, better lubrication conditions, and no thrust forces. so this kind of gear can be considered to substitute the helical gear and herringbones
本文提出的弧齒線圓柱齒輪是一種新型齒輪傳動形式,具有傳動平穩、噪聲低、潤滑性能良好、輪齒彎曲疲勞強度大的特點,因此該齒輪可以作為斜齒輪和人字齒輪的替代品用於高速重載場合。Toughening thermoset matrix composites with interlayered thermoplastic particles is an effective method to improve fracture toughness and impact resistance without sacrificing hot / wet properties. furthermore, transverse strength, fatigue resistance and solvent resistance can also be enhanced. drapability and tackness of interleaved prepreg is maintained as conventional level
對樹脂基體復合材料採取層間顆粒增韌是提高復合材料層壓板韌性、抗沖擊能力和抗分層能力的有效途徑,在保持原有復合材料濕熱性能的前提下,通過層間顆粒增韌,還可以改善垂直纖維方向的強度、抗疲勞性能以及耐溶劑性,並不影響原有的成型工藝。Reliability assessment of xi - luo - du underground water - power plant : the results have been used by the cheng - du surveying, design and research institute for the preliminary design ; ( 2 ) the stress and strain analysis for the xiao - guan - zi sluice and its foundation : the report has been applied for the reinforcement of the foundation ; ( 3 ) the thermal control procedure for the no. 7 - 14 power plant dam segments of the three gorge project : the research report provides the effective and efficient methods for the controlling of the temperature field in the mass concrete structure ; ( 4 ) the software system development for the long - term monitoring for dikes : the software can automatically give the results of the seepage field and the probability of soil piping of dikes and underground ; ( 5 ) reliability assessment of xiang - jia - ba underground water - power plant : the results have been used by the zhong - nan surveying, design and research institute for the preliminary design ; ( 6 ) fatigue reliability estimation of shipping berthing pillar : the results give the optimized design scheme and prediction of the structural age ; ( 7 ) 3 - d static and dynamic stochastic finite element analysis for the strength, stability and thermal control problem for xi - luo - du project
溪洛渡水電站超大型地下洞室群圍巖穩定的安全可靠性分析:被成都勘測設計研究院應用於比選報告及可行性論證中; ( 2 )小關子水電站攔河閘壩及地基的應力應變分析:被成都勘測設計研究院應用於地基加固處理方案; ( 3 )三峽廠房7 # - 14 #壩段溫控並縫措施研究:為廠房壩段並縫方案的可行性提供了依據; ( 4 )堤防工程體系的長期監控預報預警決策系統開發:為監控、預測預報堤防滲漏管涌破壞提供分析軟體; ( 5 )向家壩地下洞室群圍巖穩定的安全可靠性分析:被中南勘測設計研究院應用於初步設計方案中; ( 6 )靠船墩的疲勞可靠度研究:為廣東航運規劃設計院的靠船墩優化設計和加固提供依據; ( 7 )溪洛渡高拱壩壩體壩基(壩肩)強度和穩定的三維靜動力隨機有限元分析及可靠度計算:為溪洛渡重大工程壩體的靜動力安全穩定性及溫控方案提供依據。Comparison of stiffness, strength and obturating performance of the initial obturator of the breech mechanism with those of the optimized one is made, which indicates that the stress concentration that leads to fatigue failure in the optimized structure is eliminated. the flexibility of the optimized obturator of the breech mechanism is considerably increased and its obturating performance is substantially improved
對優化前後炮閂閉氣結構剛強度和閉氣性能進行了對比,優化后的結構應力集中問題得到了有效控制,消除了潛在的疲勞源,結構的柔性得到很大程度的提高,閉氣性能有了明顯改善,實現了優化的目的。The ultrasonic impacting has very good effect of adjusting residual stress, improving texture and raising fatigue strength of structural element, and it is particularly helpful to eliminate tensile stress in the shallow layer thereof
摘要超聲波沖擊對于調整殘余應力、改善組織、提高疲勞強度都有很好的效果,特別對消除淺層拉應力有很大的幫助。After fatigue tests were carried out for 44 stand beams, the following consequences were achieved. 1, contrasted with lsfrc, the strength of standing dead load of lhfrc are improved above 10. 62 %. contrasted with plain concrete, the amount is 22
在對44根標準試驗梁進行抗折疲勞試驗的基礎上,本文主要取得以下成果或結論: 1 、層布式混雜纖維混凝土的靜荷載抗折強度比層布式鋼纖維混凝土提高約10 . 62 ,比素混凝土抗折強度提高了22 . 6 。The research of high performance pavement concrete ( hppc ) is done in two sides. one is mixture design, the other is pavement performance. the mixture design and design flowchart of hppc is given on the base of nc with the consideration of characteristic of both hppc and nc. the grow law, influencing factor and formation mechanism of hppc strength is analisised by perpendicular experiment. in the same, the fatigue equations are set up for hppc and hppc i on the base of fatigue experiment. the fatigue mechanism of hppc is analysised by damage mechanics and fracture mechanics. brittleness, frost resistance and abrasion resistance of hppc is researched with the camparition to nc i. at last, the economic analysis of hppc is done by two kinds of way
結合高性能混凝土與普通路面混凝土的特點,提出了建立在普通路面混凝土基礎上的高性能路面混凝土配合比設計方法,給出了設計流程;通過正交試驗(強度試驗) ,分析了高性能路面混凝土的強度發展規律、影響因素與形成機理;同時,根據疲勞試驗結果採用雙參數weibull分佈模型分別建立了高性能路面混凝土和高性能路面混凝土(沒有摻加硅粉)疲勞方程,應用損傷力學和斷裂力學,分析了高性能路面混凝土的疲勞機理;並採用了對比分析方法,研究了高性能路面混凝土的脆性、抗凍性和耐磨性等。Steel fiber scatters stress converging in the area of the top end of tiny cracks, restrict the occurrence and development of cracks, diminishes the width of cracks, and enhances the integrity of concrete with the occurrence of cracks via the effect of felting between concrete and steel fiber, and consequently the strength of concrete that resists compression, tension, and shear force increases obviously, and the capability of concrete that resists compact, and fatigue, and the ductility and durability of fissured concrete improve
鋼纖維削弱了混凝土微裂縫尖端的應力集中、限制並約束裂縫的產生和開展、減小裂縫寬度、尤其是通過粘結作用提高了裂后混凝土的整體性,從而使混凝土的抗拉、抗彎、抗剪強度顯著提高,其抗沖擊、抗疲勞、裂后韌性和耐久性也有較大程度的改善。A research on the contact fatigue strength of cast iron gear drives with ni - p - co allloy coating
表面合金塗層提高鑄鐵齒輪的接觸疲勞強度研究A kind of new way for surface rolling processing of stainless steel rod has been put forward, thus made an enhancement on the mechanical properties of surface hardness and fatigue strength of steel rod after rolling and solved the difficult problem on the processing length of steel rod being limited by the bed length of machine tool in the traditional processing method
摘要提出一種新的不銹鋼棒表面滾壓加工方式,使得滾壓后鋼棒的表面硬度和疲勞強度等機械性能得到提高,解決了傳統加工方式中鋼棒加工長度受機床床身限制這一難題。It was showed that the method had a high identification rate and reliability with no influence on tool ' s surface quality, fatigue life and dynamic balance, which could be used on tool ' s stock management and production process tracking
研究表明,該方法對刀具的表面質量、刀具的疲勞強度和刀具的動平衡沒有影響,識別可靠性高,為刀具的全生命周期管理和信息追蹤提供了有效的技術手段。The s - n curve, the mathematical relationship of bend fatigue strength or life to strengthening loads and strengthening cycles, the maximum increments of fatigue strength and life were obtained by experimental digital processing
通過對試驗數據的處理,得到了兩種結構彎曲疲勞強度的s - n曲線、彎曲疲勞強度和疲勞壽命與強化載荷、強化次數之間的數學關系,以及經過低載強化后彎曲疲勞強度和疲勞壽命提高的最大幅度。This machine is mainly used for round spring surface shot blasting, reinforcing and derusting. it will produce a compressional stress on the surface of the spring so as to enhance workpieces bending fatigue resistance
該系列主要用於圓形工件表面拋丸強化及除銹,使圓形工件表面產生壓應力層來提高工件的彎曲疲勞強度。This paper, regarding the asphalt pavement in the zhoukou region as the study object, according to the prevalent norms ( specifications for design of highway asphalt pavement ), with the beginning of the pavement performance and the transportation investigation, totally and systematically analyzes the traffic parameters and the destroying reason of pavement at the early stage in the point of fatigue property and limit strength, gives the concepts and methods of the growth rate of equivalent axle load action time, seasonal modification factor and overload factor, proposes the method of axle load conversion on the condition of heavy loading. on this basis, it proposes the design method adapting to asphalt pavement construction, explains the steps of thickness computation of construction with the combination of engineering example, finally verifies thedesign method in the paper by test road. theory and practice both prove that the reasonability of pavement structure style and the reliability of design method in the paper can adapt to the present heavy loading and overloading traffic conditions, have highly theoretical and practical value
本文以周口地區瀝青路面為研究對象,以現行《公路瀝青路面設計規范》為依據,從路面使用性能和交通特徵的調查入手,從疲勞特性和極限強度出發分析了路面早期破損的原因,全面系統地進行了交通參數的分析,提出了當量軸次增長率、季節修正系數和超載系數的概念和方法,並提出了重載交通的軸載換算方法。在此基礎上,針對超載、重載交通從結構組合設計、結構厚度計算(包括疲勞強度標準和極限強度標準)等方面提出了適宜的瀝青路面結構設計方法,並結合工程實測,說明了結構層厚度計算的具體步驟,最後通過試驗路驗證本文提出的設計方法。理論與實踐均表明,本文提出的路面結構型式合理、設計方法可靠,能適應目前重載、超載交通的狀況,具有較高理論與實用價值。Surface hardness is strengthened by use of plasma nitriding technique to change microstructure of mould surface. on the basis of that, the major research works accomplished in this paper are as follows. hardness, resistant attrition, fatigue strength, resistant erode and resistant die burn of the materials are enhanced and the life of the mould is increased by five to ten times
本人根據近年來模具工業的快速發展,模具的表面工程越來越受到普遍重視,利用等離子滲氮技術可以改變模具表面的組織結構使表面硬度得到強化,提高了材料的硬度、耐磨性、疲勞強度、抗腐蝕能力及抗燒傷性,使模具的壽命提高5 - - 10倍。With the developing highway communications, the traffic is increasing and axle is becoming heavier and heavier, all of these demand the high quality of cement concrete pavement the experience of past ten years in highway construction shows that the practical life time of cement concrete pavement is far more shorter than anticipated. damages such as cracking are offen occurred in first serval years they caused direct and indirect economic losses and bad social influences. in addition to control overloaded vehicles by means of administration, the compressive strength, bending strength wear - ability should be improved to solve all these problems
十幾年的高等級公路建設實踐表明,水泥路面的使用壽命遠遠小於其設計壽命,往往在通車幾年後就出現一些病害,如坑槽、斷板等病害,帶來的直接、間接經濟損失和不良的社會影響。解決這些問題,除了運用行政強制手段控制超載車輛外,必須提高水泥混凝土的彎拉強度、疲勞強度、耐磨強度、阻裂限縮能力,從而提高水泥混凝土路面的使用壽命。The quality of joint has much effect on the age limit of airplane. the fatigue strength can be improved by using interference - fit joint in metal joint - structure
連接質量極大地影響著飛機的壽命,干涉配合連接能成倍提高接頭的疲勞強度。分享友人