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强度     
相关语句
  strength
    Research of Stress Analysis Theory and Strength Design Methods for Cast Iron Dryers
    铸铁烘缸应力分析理论与强度设计方法的研究
短句来源
    The Theoretical Analysis and Experimental Study on the Strength and Stability of Crane' Drums
    起重机卷筒强度和稳定性理论分析与试验研究
短句来源
    Coupling Research on Tribology, Stiffness and Strength of Crankshaft-bearing System
    曲轴—轴承系统摩擦学、刚度和强度的耦合研究
短句来源
    The Kinematic Analysis of Harmonic Drive and Some View-points on the Calculation of Strength of the Flexible Spline
    谐波齿轮传动的运动分析及对柔轮强度计算的几点看法
短句来源
    Residual Stress in Helical Spring and Calculation of Fatigue Strength
    圆柱螺旋弹簧中的残余应力及疲劳强度计算
短句来源
更多       
  intensity
    EXPERIMENTAL RESEARCH ON RESIDUAL STRESS AND STRESS INTENSITY FACTOR FOR FATIGUE CRACK
    疲劳裂纹残余应力与应力强度因子研究
短句来源
    Contact Intensity Analysis and Calculation of External Wave Sliding-Tooth Reducer
    外波式活齿减速器接触强度的分析与计算
短句来源
    Numerical Method of the Intensity Calculation of the Connection of Draw- in Bolts
    受拉螺栓联接强度计算的数值法
短句来源
    Ultralight-high Specific Intensity Mg-Li Series Alloy
    超轻高比强度Mg—Li系合金
短句来源
    This paper describes how the new finite element methods are used to: calculate root fillet stress and stress distribution, root stress intensity factor, tooth deformation and contact stress.
    本文论述了如何使用有限元法计算采掘机械齿轮齿根应力和应力分布,齿根应力强度因子,轮齿变形和接触应力及分布。
更多       
  intension
    Intension Analysis on Press Component of Grey Castiron
    承压灰口铸铁构件的强度分析
短句来源
    Aimed at the parallel four-bar mechanism based on Double Crank ring-plate cycloid drive,the effects of deflection of bar-length and joint-gaps on force of linkages are analyzed according to kinetics,principles and the force analyse model is established,provides theoretical foundation in mechanism design for guaranted with reliability of intension and movement of the component.
    针对双曲柄环板式针摆行星传动中的平行四杆机构,运用动力学原理分析了杆长尺寸随机误差对机构中铰链支反力的影响,并建立了力分析模型,为在设计双曲柄环板式针摆行星传动时更好地计算各构件的强度、运动可靠性等提供了一定的理论基础.
短句来源
    The equation of attraction is derived. Mathematic expressions of force/displacement coefficient,force/current coefficient and the maximum bearing capacity are obtained. A set of design and calculation methods are given,such as those for gap magnetic induction intension,pole area,gas length,electromagnet iron parameters,and permanent magnet parameters,providing reference to applications.
    在介绍轴向混合磁轴承结构和工作原理的基础上,阐述了悬浮力的产生机理,用等效磁路法对永磁和励磁混合磁轴承磁路进行了计算,推导出磁轴承吸力方程,导出了磁轴承力/位移系数、力/电流系数和最大承载力的数学表达式,给出了磁轴承气隙磁感应强度、磁极面积、气隙长度、电磁铁参数和永磁体参数等设计和计算方法.
短句来源
    Amendment on Intension Condition of Castiron Press Component
    对铸铁承压构件强度条件的补正
短句来源
    FW thick wall pressure vessel with carrying liner does not only utilize machining property, airproof property and high intension high toughness that liner materials have, but also utilize the merits of high stiffness and intension, design property, which composite materials have.
    具有承载内衬的FW厚壁容器不仅兼顾了内衬材料的加工性、密封性和高强度、高韧性等特点,又应用了复合材料重量轻、安全性好以及良好的可设计性等优点。
短句来源
更多       
  tensile strength
    The tensile strength of the new state T79 of 7012 aluminum alloy reaches 745MPa,the yield strength of it arrives at 684MPa,the extension ratio attains 14%.
    铝合金新状态T79的抗张强度σ_b达745 MPa、屈服强度σ_(0.2)达684MPa、延伸率达14%。
    Some Problems on Calculation Bolt Tensile Strength
    关于螺栓联接强度计算中的几个问题
短句来源
    Influence of La Riched Rare Earth on Elevated Temperature Tensile Strength of Mullite Fibre Reinforced ZL109 Matrix Composite
    富镧混合稀土对莫来石短纤维增强ZL109复合材料高温强度的影响
短句来源
    NEW HIGH STRENGTH STEEL FOR BOLTS WITH TENSILE STRENGTH OVER 1300 MPa
    1300MPa级高强度螺栓钢
短句来源
    Calculation of Tensile Strength for Cryogenic Austenitic Steel
    低温奥氏体钢的强度计算
短句来源
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      strength
    The influence of methanol content, pH value, ion types, and ionic strength of mobile phase are studied in detail.
          
    It was indicated that the notched impact strength and elongation at break of the polymers increased with the increase of PDMS content.
          
    It implies that this is an effective means to reduce the dielectric constant of PI, but it also causes the decrease of tensile strength and the rise of water absorption.
          
    The compressive strength of the composite is higher than that of the PLA scaffold.
          
    pH, proteins, amino acids, ionic strength and Na2S, on the dissolution of cinnabar.
          
    更多          
      intensity
    Let {N(t), t≥0} be the nonhomogenous Poisson process with cumulative intensity parameter Ν (t), {δt,t ? 0} the age process, and {γt,t ? 0} the residual lifetime process.
          
    Generally, The risk-neutral default intensity λQ is not equal to the empirical or actual default intensity λ.
          
    It can be concluded that the newly built feeding-sample system can increase the spectral line intensity by about two to three times and decrease the detection limit by about 2 to 10 times.
          
    The results indicated that the weak election-withdrawing group 4-hydroxymethyl in 4-position of pyridine in 4-HMDPA could weaken the fluorescence intensity of the lanthanide complexes.
          
    Each NMR spectra was data-processed to provide 238 intensity-related descriptors as input coordinates in a multidimensional space and analyzed by PR method.
          
    更多          
      intension
    The coupling intension corresponds with two factors: the structure of an SLM and the position of an object point in the view of an SLM.
          
    In this paper, a correlation function is proposed to describe the coupling intension between the couple optical paths of an SLM.
          
    Confocal laser scanning microscopy (CLSM) was applied to detect the intracellular [Ca2+] variety of fluorescent intension, with Fluo-3/AM fluorescence loaded in SFSMC.
          
    In face of such adverse instances as laser intension distributing defectively, part of the image being saturated, this method can still work well.
          
    Intension annotation that improves the checking method is also discussed.
          
    更多          
      tensile strength
    It implies that this is an effective means to reduce the dielectric constant of PI, but it also causes the decrease of tensile strength and the rise of water absorption.
          
    However, there was only a small change in the water absorption rate and a decrease in tensile strength and compression strength were noted.
          
    Water absorption ratio, expansion time and water absorption rate decreased, but tensile strength and compression strength improved.
          
    The longitudinal tensile strength (MOR) ranged from 115.94 to 328.15 MPa.
          
    We analyzed the microstructure of the welding bead and the tensile strength of the non-electric welded joints.
          
    更多          


    ~~

    圆弧齿轮传动的接触强度计算法是当前齿轮研究工作者最感兴趣的课题之一。本文指出了诺维柯夫提出的计算方法的错误,并重新推导了算式。从而得出结论:圆弧齿轮传动的接触强度与基本尺寸 A,b,R_1,R_2的函数关系,同渐开线啮合一样。这样,就为目前流行的经验方法(取圆弧齿轮传动的接触强度为渐开线齿轮传动的若干倍)提供了理论基础,并将使今后的实验工作量大为减少。

    When we design or manufacture a cam more accurately, the ana-lytical method of calculation is desired. For example, by fabricationa cam the coordinate of pitch curve or centure of cutter must be de-termined; by calculation for strength and wear, the radius of curvatureof the pith curv sould be investigated. This problem has been solvedby different method, wich may be found in some literares. In thispaper the author suggest a way to establisb the systematic fotmulaswith parameters α and β. (α is pressure angle,...

    When we design or manufacture a cam more accurately, the ana-lytical method of calculation is desired. For example, by fabricationa cam the coordinate of pitch curve or centure of cutter must be de-termined; by calculation for strength and wear, the radius of curvatureof the pith curv sould be investigated. This problem has been solvedby different method, wich may be found in some literares. In thispaper the author suggest a way to establisb the systematic fotmulaswith parameters α and β. (α is pressure angle, and β is the anglebetween radius R and normal to pith curve). For conveience to calcu-lation, several nomograms are discussed. The construction procedureof a cam is as follows: (a) Select the type of follower motion. (b)According to maximal pressure angle and nomogram 4 or 5 determinethe minimum cam size.(c) Calculate the coordinates of pitch curve byformulas(1)(2)(3)or (8)(9). If the size of roller is different from thecutter, the calculation must be continued with the formulas (6′)(7′).(d) If considering with Strength、wear or radius of roller the, radiusof curvature of the pitch curve must be calculated with formula(13).Because the method of deriving formula of the cam for oscillatingfollower or translating follower is same. so the formula for oscillatingfollower is described in detaill only.

    在精确制造或设计凸轮时,都要求用分析法。例如加工时需要知道凸轮轮廓坐标或刀具的中心坐标;强度计算或磨损计算时需要知道凸轮轮廓的曲率半径等。解决这个问题有些文献已经提出一些不同的方法。这里所提出的就是以凸轮压力角α和升角β为参数,推导系统设计公式的方法。为了计算方便还讨论了几根计算图线的设计问题。凸轮的设计步骤如下:(a)选定从动件的运动规律。(b)按最大压力角和图线(4)或(5)决定凸轮最小尺寸。(c)用公式(1)(2)(3)或(8)(9)计算凸轮理论轮廓坐标。如果滚子尺寸和刀具尺寸不同,还需用公式(6′)和(7′)继续计算。(d)如果需要考虑强度磨损或滚子半径用公式(13)计算凸轮轮廓的曲率半径。因为摆动从动件和移动从动件的凸轮在公式推导的方法上是一样的,所以仅对摆动从动件的凸轮公式推导作了详细的叙述。

    This paper introduces the procedure of making and test of a small powe harmonic drive,and gives an analysis and discussion on the engagement,tooth form,the selection of the material of the flexible gear,its strength and the construction of the harmonic drive,etc.

    本文介绍了小功率波导传动的试制情况,并对波导传动的啮合运动、齿形、柔轮材料选择和强度以及结构等问题作了分析和讨论。

     
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