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When the bearing is subjected to large fluctuations of load and heavy impacts, the bearing characteristic number should be __________ the bearing modulus.
- a)5 times
- b)10 times
- c)15 times
- d)20 times
Correct answer is option 'C'. Can you explain this answer?
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When the bearing is subjected to large fluctuations of load and heavy ...
-Bearing modulus is a modulus used in journal bearing design. It is a dimensionless number. ==Formula== Bearing Modulus (C) is C = (Zn/p) where For any given bearing, there is a value for indicated by C, for which the coefficient of friction is at a minimum.
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-When the bearing is subjected to large fluctuations of load and heavy impacts, the bearing characteristic number should be15 times the bearing modulus.
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When the bearing is subjected to large fluctuations of load and heavy ...
Bearing Modulus and Bearing Characteristic Number
The bearing modulus is a measure of the bearing material's resistance to deformation under load. It is determined by the bearing material's elastic modulus, its geometry, and its surface roughness. The higher the bearing modulus, the stiffer the bearing material.
The bearing characteristic number, on the other hand, is a measure of the bearing's ability to withstand shock loads and high-frequency vibrations. It is calculated as the product of the bearing's dynamic load rating and its equivalent radial load.
Relation between Bearing Modulus and Bearing Characteristic Number
When the bearing is subjected to large fluctuations of load and heavy impacts, the bearing characteristic number should be at least 15 times the bearing modulus. This is because a high bearing modulus alone cannot guarantee the bearing's ability to withstand shock loads and vibrations. The bearing's geometry and surface roughness also play a crucial role in its shock resistance.
By ensuring that the bearing characteristic number is at least 15 times the bearing modulus, the bearing will be able to withstand the shock loads and vibrations without suffering from excessive deformation or failure. This is particularly important in applications where the bearing is exposed to high levels of shock and vibration, such as in heavy machinery, automotive suspensions, and aerospace systems.
Conclusion
In summary, the bearing modulus and characteristic number are two important parameters that determine a bearing's mechanical properties. While the bearing modulus measures the bearing material's stiffness, the bearing characteristic number measures its ability to withstand shock loads and vibrations. When designing bearings for applications that involve high levels of shock and vibration, it is important to ensure that the bearing characteristic number is at least 15 times the bearing modulus to ensure reliable performance.
The bearing modulus is a measure of the bearing material's resistance to deformation under load. It is determined by the bearing material's elastic modulus, its geometry, and its surface roughness. The higher the bearing modulus, the stiffer the bearing material.
The bearing characteristic number, on the other hand, is a measure of the bearing's ability to withstand shock loads and high-frequency vibrations. It is calculated as the product of the bearing's dynamic load rating and its equivalent radial load.
Relation between Bearing Modulus and Bearing Characteristic Number
When the bearing is subjected to large fluctuations of load and heavy impacts, the bearing characteristic number should be at least 15 times the bearing modulus. This is because a high bearing modulus alone cannot guarantee the bearing's ability to withstand shock loads and vibrations. The bearing's geometry and surface roughness also play a crucial role in its shock resistance.
By ensuring that the bearing characteristic number is at least 15 times the bearing modulus, the bearing will be able to withstand the shock loads and vibrations without suffering from excessive deformation or failure. This is particularly important in applications where the bearing is exposed to high levels of shock and vibration, such as in heavy machinery, automotive suspensions, and aerospace systems.
Conclusion
In summary, the bearing modulus and characteristic number are two important parameters that determine a bearing's mechanical properties. While the bearing modulus measures the bearing material's stiffness, the bearing characteristic number measures its ability to withstand shock loads and vibrations. When designing bearings for applications that involve high levels of shock and vibration, it is important to ensure that the bearing characteristic number is at least 15 times the bearing modulus to ensure reliable performance.
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When the bearing is subjected to large fluctuations of load and heavy impacts, the bearing characteristic number should be __________ the bearing modulus.a)5 timesb)10 timesc)15 timesd)20 timesCorrect answer is option 'C'. Can you explain this answer?
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