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   影响系数法 在 材料科学 分类中 的翻译结果: 查询用时:0.428秒
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影响系数法
相关语句
  influence coefficient method
    An Improved Least Square Influence Coefficient Method for Balancing Mass of Rotors
    考虑平衡质量受限时最小二乘影响系数法的改进
短句来源
    Influence Coefficient Method for Computing Interfacial Shear Stresses of Film-to-Substrate
    膜-基复合材料界面剪应力分析的影响系数法
短句来源
    Presented is an improved influence coefficient method for balancing the mass of rotors. It is not sufficient to consider only the minimum of the sum of squares of the residual vibration.
    在影响系数法动平衡实践中,经常会因平衡质量过大而无法实现.产生这一问题的原因是:平衡方法本身不完善,片面追求残余振动平方和最小;
短句来源
  influence coefficient
    Influence Coefficient Method for Computing Interfacial Shear Stresses of Film-to-Substrate
    膜-基复合材料界面剪应力分析的影响系数法
短句来源
    Presented is an improved influence coefficient method for balancing the mass of rotors. It is not sufficient to consider only the minimum of the sum of squares of the residual vibration.
    在影响系数法动平衡实践中,经常会因平衡质量过大而无法实现.产生这一问题的原因是:平衡方法本身不完善,片面追求残余振动平方和最小;
短句来源
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  influence coefficient method
In case of high concentrations C increases the intensity of Cr.3.The influence coefficient method based on the solution of overdetermined linear equation systems does not lead to useful results if the calibration data set is treated by groups.
      
In this paper, an active balancing device, which is of an electro-magnetic type, has been developed and an active balancing method using the influence coefficient method is proposed.
      
Selected reaction coefficients are calibrated by an optimization technique based on influence coefficient method.
      
  influence coefficient
The influence coefficient of the matrix was calculated by the Morino analytic formula.
      
In case of high concentrations C increases the intensity of Cr.3.The influence coefficient method based on the solution of overdetermined linear equation systems does not lead to useful results if the calibration data set is treated by groups.
      
The unsteady aerodynamics are determined by developing an influence coefficient technique which is appropriate for both aerodynamically tuned and detuned rotor configurations.
      
The method to correct the temperature influence on measuring ρθu and the procedure to decide experimentally temperature influence coefficient have been given.
      
In this paper, an active balancing device, which is of an electro-magnetic type, has been developed and an active balancing method using the influence coefficient method is proposed.
      
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Presented is an improved influence coefficient method for balancing the mass of rotors. It is not sufficient to consider only the minimum of the sum of squares of the residual vibration. Deficiencies in the correlation between the balancing planes and stability algorithm could also affect the outcome. Ridge regression is implemented into the least square scheme to overcome the adequacies of the traditional approach.

影响系数法动平衡实践中,经常会因平衡质量过大而无法实现.产生这一问题的原因是:平衡方法本身不完善,片面追求残余振动平方和最小;平衡面间存在相关,而且求解方法的数值稳定性差.文中针对第一种原因进行研究,并结合岭估计的思想,提出了最小二乘方法的改进,从而使平衡结果具有更好的可实现性.

The influence coefficient method is applied to determine the interfacial shear stresses of the film substrate composite in this paper, in which the substrate is regarded as the half space and the film as the plane. When a tensile load is applied to the substrate in an axial direction, the displacement at arbitrary point on the film and the substrate can be expressed by an integration in which the influence coefficients and the interfacial shear stresses are included. According to the condition of displacement...

The influence coefficient method is applied to determine the interfacial shear stresses of the film substrate composite in this paper, in which the substrate is regarded as the half space and the film as the plane. When a tensile load is applied to the substrate in an axial direction, the displacement at arbitrary point on the film and the substrate can be expressed by an integration in which the influence coefficients and the interfacial shear stresses are included. According to the condition of displacement harmony on the interface of the film substrate interface, a number of integral equations in which the interfacial shear stresses at the film substrate interface are unknown quantities can be established. Because of symmetry in structure and load, the interfacial shear stresses in quarter of the region of adhesion are analyzed. After the influence coefficients of the film and the substrate are calculated by using the Finite Element Method and the analytic method respectively, a truncated set of simultaneous equations are solved for the interfacial shear stresses. The influence coefficients of the substrate at any point are computed by summing up those of its four symmetrical points, and the singularity at special points calculating the influence coefficients of the substrate are eliminated by the average of displacements at its vicinal points. The method overcomes the difficulties that the film substrate is meshed only using the Finite Element Method, and makes the calculation less complex taking the substrate as the half space. In contrast with analytic solution, the results can perfectly show its effectiveness to deal with the film substrate in this paper, and reflect the factual variation of the interfacial shear stresses in the region of adhesion. The method provides a new way for the strength analysis of the film substrate composite.

利用影响系数法 ,将基体看作半无限大体 ,对薄膜作平面处理 ,从而对膜—基复合材料的界面剪应力计算进行分析研究。在基体受单向拉伸时 ,薄膜—基体界面产生剪应力 ,分别利用有限元法和解析法对薄膜和基体的影响系数进行计算 ,根据薄膜—基体界面位移协调条件 ,建立以界面剪应力为未知量的积分方程 ,最后得出界面剪应力。克服了完全采用有限元法在网格划分时遇到的困难 ,并且减少计算量。数值计算结果表明 ,本文对薄膜和基体的处理是有效的 ,能够较好地反映薄膜—基体界面剪应力的实际变化规律 ,为膜—基复合材料强度分析提供新的途径

 
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