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- A large number of geometrical parameters influence these coefficients, and range of design configuration is wide. 有许多几何参数影响这些系数,且设计外型变化很大。
- Finally, compute the geometrical parameters of deformed grids and strain contribution on the piecework surface. 最后,由特征点的空间坐标,计算出各圆的几何参数和应变,得到工件表面的应变分布。
- In ray techniques based on GO and GTD,the radii of the curvatures of the reflec-tors and reflected wavefronts are important geometrical parameters. 在基于GO和GTD的射线法中,镜面和反射波面的曲率半径是重要的几何参数。
- The influence of main bead geometrical parameters on binder hold down force(BHDF)and drawbead restraining force(DBRF)are analyzed. 分析了拉深筋主要几何参数对压筋力和拉深筋阻力的影响,研究了压筋和成形两个阶段板料在拉深筋作用下的变形规律与受力特点。
- A method for the optimization of the drawbead geometrical parameters was built , which was based on the response surface method and genetic algorithm. 引入响应面方法和遗传算法建立基于近似模型的拉延筋几何参数反求方法。
- The effects of the interlayer materials and geometrical parameters used on the vibration reduction coefficient are studied. 适当增加夹层的厚度可改善组合结构抑振性能;
- The results shows that die pressure ofextruder, relaxation time of polymer and geometrical parameters of die have significanteffect on stress tensor in extruder die. 模拟结果表明:机头压力、材料的松弛时间以及口模流道的几何尺寸对高聚物在机头中的应力张量的变化影响较大;
- There are several total sonic band gaps found in this band structure and adjustment of the geometrical parameters can be used to obtain large sonic band gaps. 在压克力?空气周期性结构排列下可以发现许多全频沟的产生,因此在针对声波频段而言,适当地以不同尺寸排列下可以得到很大的全频沟现象。
- To make the experimental platform of controlled plate five-bar lingages work well,the geometrical parameters of five-bar linkages must be rationally ascertained. 通过合理确定受控平面五杆机构杆件的几何参数,以保证受控平面五杆机构实验台能够正常工作。
- A comparison is made between different shapes of sheet metal blanks for deep drawing boxes by use of a rectangular die with different geometrical parameters. 介绍并比较了用亚椭圆形、八角形和长圆形等形状的毛料,在不同几何参数的矩形拉深模具上拉深的实验结果。
- By optimizing tap types and geometrical parameters, the cutting condition is improved, and the purpose of upgrading threading quality and extending tap life is ... 通过优化丝锥结构型式和几何参数,改善了攻丝切削状况,实现了提高攻丝质量、延长丝锥寿命的目的。
- The laws of the ultimate capacity ratio of K-joints and KK joints (namely multiplanar coefficient) varying with the main geometrical parameters were obtained. 研究了KK型节点和K型节点极限承载力之比(即空间作用系数)随节点几何参数的变化规律。
- Result The natural frequencies of the hypergravitation training facility were improved by modification of physical and geometrical parameters of sensitive elements. 结果通过修改敏感单元的物理、几何参数,提高了超重训练设备的固有频率。
- This expression has all properties of the nonlinear PVT expressed by geometrical parameters and can be used in the suppression of interference and clutter in radar system. 理论证明电参数下的非线性极化变换具有椭圆极化参数下非线性极化变换的全部特性,适用于雷达中杂波和干扰的极化抑制。
- The reasonable ranges of the geometrical parameters are given by analyzing the influences of the vertex angle and cutting angle on impact force and penetration displacement. 通过分析棱柱杆的几何参数对撞击力和侵入位移的影响,给出了棱柱杆主要几何参数的合理范围。
- The effects of geometrical parameters of die and shear rates on the die swell of PVC extruded through rectangular die were discussed, and the special rules were also analyses theoretically. 研究了PVC材料通过矩形口模挤出时,口模的几何参数和剪切速率对离模膨胀的影响,并从理论上分析了其特征规律。
- Take clean water pump with high hydro performances as model, and wear-resisting property emphasized, from the viewpoint of the efficiency of centrifugal mud pump, the hydraulic and geometrical parameters of centrifugal mud pump is discussed. 以性能优良的清水泵作为模型泵,从离心式泥浆泵效率着手,重点考虑其耐磨性,对该类泵的水力参数及几何参数进行了具体阐述。
- The groove is optimized, reconstructed and validated by means of the influence of geometrical parameter and the optimized parameter choice. 分析了刀具几何参数的影响并优化了参数选择,在此基础上,做了槽型优化和重构,并进行了验证。
- When there is impingement, the effect of flow and geometrical parameters on the local heat transfer characteristics near film cooling holes is investigated, and the mechanism of local heat transfer characteristics is obtained. 在有冲击射流时,着重研究了流动和几何参数对气膜孔局部换热特性的影响,分析了“冲击-气膜出流”局部换热特性规律。
- The groove is optimized,reconstructed and validated by means of the influence of geometrical parameter and the optimized parameter choice. 分析了刀具几何参数的影响并优化了参数选择,在此基础上,做了槽型优化和重构,并进行了验证。
