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  head bolt
    With the numerical simulation of heavy-duty diesel engine to strengthen performance, a CAD assembly model of cylinder head bolt is built based on the thread.
    结合大功率柴油机性能强化的数值计算,在考虑螺纹的基础上建立了气缸盖螺栓的CAD装配体模型;
短句来源
    According to the numerical simulation of heavy-duty diesel engine to raise power,two methods to assess the strength of cylinder head bolt,static calculation and fatigue stress check,are introduced.
    结合大功率柴油机提升功率的数值计算工作,介绍了评估气缸盖螺栓强度的两种方法:静强度分析法和疲劳强度校核法。
短句来源
  cylinder head bolt
    With the numerical simulation of heavy-duty diesel engine to strengthen performance, a CAD assembly model of cylinder head bolt is built based on the thread.
    结合大功率柴油机性能强化的数值计算,在考虑螺纹的基础上建立了气缸盖螺栓的CAD装配体模型;
短句来源
    According to the numerical simulation of heavy-duty diesel engine to raise power,two methods to assess the strength of cylinder head bolt,static calculation and fatigue stress check,are introduced.
    结合大功率柴油机提升功率的数值计算工作,介绍了评估气缸盖螺栓强度的两种方法:静强度分析法和疲劳强度校核法。
短句来源
  “气缸盖螺栓”译为未确定词的双语例句
    Technical Research of Tightening Torque to Cylinder-head Bolt of Model YC6A Diesel Engine
    YC6A柴油机气缸盖螺栓拧紧力矩工艺研究
短句来源
    By testing mechanical property,frictional property,bolt axial force-extension elongation relation,axial-force of assembly in site of YC6A cylinder-head bolt,this paper calculates the range of bolt axial-force in reliable pretightening and designs a tightening technique of torque to improve the reliability of bolt torque of YC6A cylinder-head in assembly. The technique has been successfully used in practice.
    通过对YC6A气缸盖螺栓机械性能、摩擦性能、螺栓轴向力-伸长量关系、现场装配轴向力的测试,计算出可靠预紧时螺栓轴向力范围,设计力矩转角法拧紧工艺,以提高YC6A柴油机气缸盖螺栓装配力矩的可靠性,并成功应用于生产中,取得了较好的效果。
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Concerning with the characteristic of marine diesel engine surface that its vibration signals are non-steady andabound of vibration exciter, the signals are analyzed and processed based on the theory of non-liner dynamic system. Themaximum wavelet module quantum is used to reduce the noise of vibration signal from surface of cylinder heads bolt. Thenthe multi-fractal spectrum of valve under different state is calculated, the fault eigenvector is defined and accordingly differentfault can be identified. The result...

Concerning with the characteristic of marine diesel engine surface that its vibration signals are non-steady andabound of vibration exciter, the signals are analyzed and processed based on the theory of non-liner dynamic system. Themaximum wavelet module quantum is used to reduce the noise of vibration signal from surface of cylinder heads bolt. Thenthe multi-fractal spectrum of valve under different state is calculated, the fault eigenvector is defined and accordingly differentfault can be identified. The result shows that all these methods are very effective to diagnosis the fault of compressors valve.

针对柴油机表面振动非稳态与多激励性的特点,从非线性动力系统理论角度进行信号的分析与处理。运用小波模量最大值对气缸盖螺栓表面的振动信号消噪,计算气门不同状态时的多重分形维数谱,定义故障特征向量,从而识别不同的故障。结果表明,这种方法对气门故障诊断是极为有效的。

With the numerical simulation of heavy-duty diesel engine to strengthen performance, a CAD assembly model of cylinder head bolt is built based on the thread. The 3-D finite element model of bolt is calculated by the method of contact analysis, and the fatigue strength of bolt is checked. The results show that the stress of bolt is still in the range of elastic change, so the bolt can be twisted by the swung angle method.

结合大功率柴油机性能强化的数值计算,在考虑螺纹的基础上建立了气缸盖螺栓的CAD装配体模型;并采用接触分析法对螺栓的应力应变进行了三维有限元计算,对螺栓的疲劳强度进行了校核。分析结果表明,螺纹受力仍处于弹性变化范围,可采用转角法进一步拧紧。

According to the numerical simulation of heavy-duty diesel engine to raise power,two methods to assess the strength of cylinder head bolt,static calculation and fatigue stress check,are introduced.The method of fatigue strength check was based on a CAD bolt model with thread.Contact finite element analysis of cylinder head bolt was carried out to study the state of stress and strain.

结合大功率柴油机提升功率的数值计算工作,介绍了评估气缸盖螺栓强度的两种方法:静强度分析法和疲劳强度校核法。就疲劳强度校核在考虑螺纹的基础上建立了螺栓的CAD实体模型,并采用接触分析法,对螺栓的应力应变状态进行了有限元计算分析。

 
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