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14091期14场胜负彩:Bearing Engineering & Calculation

Time:2018-08-07 16:39:49

14场胜负彩奖金有多少 www.fbrjiz.com.cn


MESYS is a professional software for mechanical engineering. WD employs MESYS to provide customer with bearing engineering support and profession bearing calculation, including:

Roller bearing analysis

  • Load distribution
  • Life according to ISO/TS 16281
  • Influence of clearance, tilting angle, centrifugal forces, load spectra
  • Track rollers with elastic outer ring
  • Parameter variations

Shaft analysis

  • With integrated bearing analysis and nonlinear bearing stiffness
  • Strength according to DIN 743
  • Natural frequencies
  • Coaxial shafts
  • Load spectra
  • Parameter variations

Shaft systems

  • Coupling of shafts by gear pairs
  • Data exchange with gear calculations
  • Calculation of rotational speeds
  • Natural frequencies at system level
  • Load spectra and gear shifts
  • 3D elastic housings and planet carriers Axial-radial cylindrical roller bearings
  • FEM-based calculation for axial-radial cylindrical roller bearings
  • Consideration of the ring deformations

Ball screws

  • Calculation of the load distribution in ball screws under axial and radial loading as well as tilting moment.
  • Calculation of life analogous to ISO/TS 16281
  • Integration in shaft analysis
  • Parameter variations

The MESYS calculates bearing life according to ISO/TS 16281 (2008), which is the latest standardized version of a bearing life calculation. The bearing life is calculated using the load distribution on each rolling element and is therefore not limited to an external force but can also consider tilting moments and the influence of clearance or pretension. For each of the five degrees of freedom either a load or a displacement/rotation can be specified. As with the classical calculation according to ISO 281 the influence of the lubricant in the life expectancy can be also considered.

The MESYS software is considering the following effects:

  • Bearing clearance
  • Change of clearance through thermal effects
  • Change of clearance due to fits
  • Roller profile
  • Centrifugal loads
  • Life reduction due to reduced hardness
  • Lubricant and Lubricant film thickness
  • Load spectra
  • Bearing sets (of several bearings)
  • Hybrid or ceramic bearings
  • Reliability
  • Elastic deformations of the outer ring for track rollers as extension module

As results we will get

  • The load distribution in the bearing
  • The Hertzian contact stress
  • The stresses below the surface for determining the required harness depth
  • The load dependent friction moment for ball bearings
  • The contact angle under load
  • The displacement and tilting of the bearing
  • The minimal film thickness
  • The spin-to-roll ratio
  • The extent of pressure ellipse
  • The load distribution in a set of bearings
  • Life according to ISO/TS 16281
  • Influence of clearance, tilting angle, centrifugal forces, load spectra
  • Track rollers with elastic outer ring
  • Parameter variations

If you need any help in bearing engineering and calculation, please leave us a message and we will provide you with a solution.

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