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基于ANSYS的渐开线啮合齿轮有限元分析 总被引:4,自引:0,他引:4
采用有限元软件ANSYS建立了啮合齿轮的有限元模型,利用ANSYS软件的非线性接触分析功能,对啮合齿轮的接触问题进行仿真,计算出了接触应力,为齿轮的强度计算和设计在方法上提供了参考和依据。 相似文献
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考虑齿面缺陷的重载齿轮有限元分析 总被引:1,自引:0,他引:1
以某水电站卷扬式闸门启闭机中的传动齿轮为例,应用大型有限元分析软件ANSYS建立了齿轮接触仿真分析模型。利用ANSYS面-面接触单元进行了齿面不同位置缺陷的仿真分析,计算了齿轮的接触应力和接触变形,得出了存在铸造缺陷齿轮的应力、应变分布规律,分析比较了考虑齿面缺陷齿轮与理想齿轮应力、形变的差异。结果表明,齿面不同位置缺陷对重载齿轮性能有不同影响,该方法对控制齿轮加工制造过程中缺陷、提高齿轮强度和可靠性设计提供了重要依据。 相似文献
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仇卫建 《机电产品开发与创新》2015,28(1):92-93,91
煤矿井下用无轨辅助运输车辆大都需要抬高箱对发动机和传动系统进行连接,而恶劣的工况致使抬高箱内齿轮接触频出故障,对抬高箱内齿轮接触仿真分析具有现实意义。利用ANSYS对齿轮进行参数化建模,并尝试将齿轮模型在ANSYS中进行有限元分析。避免齿轮在CAD软件中建模后与CAE软件结合时条件处理所造成的误差,扩大了其应用范围,简化了分析过程,并利用其对齿轮的接触应力进行了计算,与赫兹理论计算结果进行误差对比,得出结论,验证了ANSYS在齿轮计算中的有效性和准确性。 相似文献
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齿根应力和齿轮变形的计算是齿轮设计的两个重要问题,它关系到齿轮的承载能力和可靠性。利用Pro/E对齿轮进行精确参数化建模,在此基础上利用Pro/E与ANSYS中间连接接口,将模型导入到ANSYS中,对直齿圆柱齿轮进行齿根弯曲应力分析计算。 相似文献
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综合考虑齿轮箱、轴系的支撑变形及齿轮传动热变形,计算得到齿轮啮合错位量.利用有限元软件对齿轮箱进行受力分析,同时对齿轮副进行承载接触分析,通过力学原理及有限元节点法计算齿轮轴节点位移;计算齿廓接触线热变形量,并通过有限元热弹耦合作用,分析热变形对齿轮齿面接触位移变化的影响;对齿轮进行修形优化并对比了其实验结果.结果表明... 相似文献
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张慧 《中国制造业信息化》2008,37(7):72-74
基于啮合原理和坐标变换理论,求解出误差状态下的齿轮啮合位置.在齿轮接触应力的计算中,有限元方法有着快速准确的优点.利用通用有限元程序ANSYS分别从静态接触和动态接触两个方面,计算了在啮合误差状态下齿轮接触应力的分布情况,从而验证了ANSYS在啮合误差状态下齿轮接触应力分析的有效性. 相似文献
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张慧 《中国制造业信息化》2008,(4):72-75
基于啮合原理和坐标变换理论,求解出误差状态下的齿轮啮合位置。在齿轮接触应力的计算中,有限元方法有着快速准确的优点。利用通用有限元程序ANSYS分别从静态接触和动态接触两个方面,计算了在啮合误差状态下齿轮接触应力的分布情况,从而验证了ANSYS在啮合误差状态下齿轮接触应力分析的有效性。 相似文献
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建立斜齿轮接触的有限元模型,基于非线性接触算法对斜齿轮进行有限元分析,得到斜齿轮的齿根弯曲应力和啮合齿面的接触应力结果,在此基础上,将仿真与传统理论计算结果进行比较,结果表明,利用有限元法分析齿轮接触问题是可行的. 相似文献
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齿轮齿根应力轮齿挠度啮合刚度和端面载荷系数的研究 总被引:1,自引:0,他引:1
抛弃把轮齿形状视为悬臂梁的假设,直接从实际齿形出发,以相似理论为基础,通过边界元采样计算和回归分析,建立了齿根应力、轮齿挠度和啮合刚度计算的新方法。分别提出了弯曲与接触强度端面载荷系数的定义式和新的计算式。提出了实际双齿啮合必要和充分条件及实际重合度的概念及公式。提出了一种新的重合度系数公式。比较分析了ISO6336的一些问题。所给齿根应力计算新方法不需种种假设、理论基础先进、实际准确性好、计算大为简化,可以取代W.Lewis的悬臂梁方法。其余所给公式亦较明确合理。 相似文献
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齿面摩擦力对齿轮接触应力的影响 总被引:8,自引:0,他引:8
渐开线齿轮接触疲劳强度设计中忽略了齿面摩擦力的影响。对此 ,众多学者看法不一 ,有的认为齿面摩擦力影响甚微 ,可以忽略 ;而另一些人则指出其影响明显 ,不可不计。文中通过 6组滚子疲劳试验得出 ,齿面摩擦力的影响能否被忽略与齿轮的转速、功率、材质、齿数、模数及润滑剂的黏度等因素有关 ,而这些因素可用一个无量纲参数S来表示。S存在两个临界点S1 和S2 。当S S2 时 ,摩擦力影响较小 ,可以忽略不计 ;当S1 相似文献
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Load sharing and stress analysis of single enveloping worm gearing considering transmission errors 总被引:1,自引:1,他引:0
A. H. Falah A. H. Elkholy 《The International Journal of Advanced Manufacturing Technology》2008,37(3-4):211-220
A procedure, known as the slicing method, which has been developed earlier by the authors to estimate the load share of single
enveloping (cylindrical) worm gear drives and to calculate the instantaneous tooth meshing stiffness and stresses, is extended
in this study to investigate the effect of transmission error on loading and stresses. Tooth composite deflection caused by
bending, shearing, contact deformation and initial separation due to profile mismatch are determined in the analysis as well
as tooth stiffness variation during the course of contact of both the worm and the wheel. The elasticity theory was used to
calculate fillet stresses and deformation of both the worm and wheel. Numerical examples are presented to illustrate the response
of worm gear set in the presence of transmission error and under given loading conditions. The procedure was proven to be
safe and reliable in rating the load capacity and useful in the design of worm gear drives with compact size and high power
transmission. 相似文献
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电动汽车变速箱是电动汽车噪声的主要来源。为减小变速箱斜齿轮由于弹性变形和制造误差引起的啮合冲击,使变速箱传动平稳及改善啮合噪声,有必要研究齿轮修形技术。利用Pro/E软件建立斜齿轮的参数化模型并导人到ANSYS Workbench中进行接触有限元分析,并对3种修形方案的接触应力进行比较。结果表明:斜齿轮副采用合理的修形方案可以降低最大接触应力峰值,消除啮合冲击,同时提高变速箱齿轮传动的平稳性。 相似文献
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Shyue-Cheng Yang 《The International Journal of Advanced Manufacturing Technology》2006,30(5-6):385-394
In this paper a method for the modified profile of a rack cutter is presented. The deviation function method is used to reshape a rack cutter. The author proposes a modified geometry of a rack cutter to generate the driving gear of internal gear pairs. Based on the double envelope concept, the driven gear of a set of internal gear pairs can be determined. In this study, the Von-Mises stress analysis of the reshaped internal gear pairs was carried out and the specific phenomena was also investigated. The results show that it is possible to compensate elastic deformation and reduce contact stress between conjugate gear pairs. In addition, according to the tooth contact analysis on the gear pairs, reshaped gears and conventional gears have also been investigated. Computerized design of internal gears using the proposed method and simulation of their meshing and contact stress analysis of asymmetric internal gears has been developed. The developed method is illustrated with numerical examples. 相似文献
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《Measurement》2016
Contact stress evaluation in gears has been a complex area of research, due to its non-linear and non-uniform nature of stress distribution. The high contact stress on gears results in pitting and scuffing, which leads to tooth failure. Furthermore the effects of friction on gear contacts make the problem more complicated. Hence, in this paper, attempt has been made to study contact stress in gears. The experimental testing and analysis of the helical gear was carried out using Gear Dynamic Stress Test Rig (GDSTR). GDSTR is a newly designed test rig to compute the contact stresses on the gear pair contact, under real gear conditions. GDSTR uses the strain gauge and carbon slip rings to measure the surface contact stresses at the contacting points of a meshed gears. The experimental analysis showed promising results which have been verified by the finite element frictional contact analysis. The experimental testing was carried out on 5° and 25° helical gear pairs. Helical gear models with the same specifications and for different frictional coefficient conditions were also generated using FE modelling. The frictional contact stress analysis using FEM has been used for comparison with the experimental results. 相似文献