On Dynamic Loads in Parallel Shaft Transmissions: Part I—Modelling and Analysis

1988 ◽  
Vol 110 (2) ◽  
pp. 221-225 ◽  
Author(s):  
H.-H. Lin ◽  
R. L. Huston ◽  
J. J. Coy
Keyword(s):  
Contact Stress ◽  
Spur Gear ◽  
Power Source ◽  
Solution Procedure ◽  
Dynamic Loads ◽  
Parameter Study ◽  
Factors Affecting ◽  
Stress Load ◽  
Tooth Stiffness ◽  
Local Compliance

A model of a simple parallel-shaft, spur-gear transmission is presented. The model is developed to simulate dynamic loads in power transmissions. Factors affecting these loads are identified. Included are shaft stiffness and inertia, load and power source inertia, tooth geometry, tooth stiffness, local compliance due to contact stress, load sharing, and friction. Governing differential equations are developed and a solution procedure is outlined. A parameter study of the solutions is presented in Part 2.

On Dynamic Loads in Parallel Shaft Transmissions: Part II—Parameter Study

1988 ◽  
Vol 110 (2) ◽  
pp. 226-229 ◽  
Author(s):  
H.-H. Lin ◽  
R. L. Huston ◽  
J. J. Coy
Keyword(s):  
Natural Frequency ◽  
Dynamic Loading ◽  
Dynamic Load ◽  
Spur Gear ◽  
Transmission Model ◽  
Parameter Study ◽  
Factors Affecting ◽  
Rotating Speed ◽  
Tooth Stiffness ◽  
Speed Up

Solutions to the governing equations of a spur gear transmission model, developed in Part I, are presented. Factors affecting the dynamic load are identified. It is found that the dynamic load increases with operating speed up to a system natural frequency. At operating speeds beyond the natural frequency the dynamic load decreases dramatically. Also, it is found that the applied load and shaft inertia have little effect upon the dynamic load. Damping and friction decrease the dynamic load. Finally, tooth stiffness has a significant effect upon dynamic loading: the higher the stiffness, the lower the dynamic loading. Also, the higher the stiffness the higher the rotating speed required for peak dynamic response.

A method to determine dynamic loads on spur gear teeth and on bearings

2003 ◽  
Vol 267 (5) ◽  
pp. 1065-1084 ◽  
Author(s):  
L. Vedmar ◽  
A. Andersson
Keyword(s):  
Spur Gear ◽  
Dynamic Loads ◽  
Gear Teeth

LOAD AND STRESS ANALYSIS OF CYLINDRICAL WORM GEARING USING TOOTH SLICING METHOD

2006 ◽  
Vol 30 (1) ◽  
pp. 97-111 ◽  
Author(s):  
A.H. Falah ◽  
A.H. Elkholy
Keyword(s):  
Spur Gear ◽  
Operating Conditions ◽  
Stress Distributions ◽  
Worm Gearing ◽  
Tooth Stiffness ◽  
Worm Gears ◽  
Foundation Deformation ◽  
Stiffness Variation ◽  
Slicing Method

A method for the determination of load and stress distributions of the instantaneously engaged teeth of cylindrical worm gears is represented in this paper. The method is based on the assumption that both the worm and gear can be modeled as a series of spur gear slices. The exact geometry and point of load application of each slice depends on its location within the mesh. By calculating the applied load and stress for each slice, the same can be determined for the entire worm gear set. The method takes into consideration tooth stiffness variation from root to tip, tooth bending deflection, local contact deformation, tooth foundation deformation and, the influence of gear parameters on load and stress. Calculated results were found to be in agreement with experimental and analytical ones obtained from literature under given operating conditions.

scholarly journals Investigating the Pre-Damaged PZT Sensors under Impact Traction

2018 ◽  
Vol 6 (4) ◽  
pp. 142 ◽  
Author(s):  
Sakineh Fotouhi ◽  
Mohamad Fotouhi ◽  
Ana Pavlovic ◽  
Nenad Djordjevic
Keyword(s):  
Sandwich Panel ◽  
Piezoelectric Sensors ◽  
Dynamic Loads ◽  
Impact Loads ◽  
Elastic Plates ◽  
Factors Affecting ◽  
Reliable Performance ◽  
Vibration Impact ◽  
Static And Dynamic Loads ◽  
Marine Applications

Ships are usually under vibration, impact, and other kinds of static and dynamic loads. These loads arise from water flow across the hull or surfaces, the propeller cavitation, and so on. For optimal design purposes and reliable performance, experimental measurements are necessary. These sensors are often used under or near the water, working conditions that improve the risk of sensor damage. This paper aims at investigating, by the use of finite elements, the behavior of damaged piezoelectric sensors under traction and impact loads. The numerical method was calibrated using results available in the literature regarding piezoelectric and elastic plates with a central crack. After calibration, the simulation was used on two types of Lead-Zirconium-Titanium oxide (PZT) sandwich panel structures reinforced by aluminum skins. The results proved that the damage size and impact energy are important factors affecting the response of piezoelectric sensors; therefore, special attention might be considered when using these sensors for marine applications.

scholarly journals Statistical Analysis of Dynamic Loads on Spur Gear Teeth : Effect of Shaft Stiffness

1976 ◽  
Vol 19 (133) ◽  
pp. 808-813 ◽  
Author(s):  
Toshimi TOBE ◽  
Keijin SATO ◽  
Nobuo TAKATSU
Keyword(s):  
Statistical Analysis ◽  
Spur Gear ◽  
Dynamic Loads ◽  
Gear Teeth

Measurement of Contact Stress on Tooth Flank of Spur Gear Subject to Static Load

2003 ◽  
Vol 2003.4 (0) ◽  
pp. 25-26
Author(s):  
Ichiro MORIWAKI ◽  
Koji WATANABE ◽  
Toshiro MIYATA
Keyword(s):  
Contact Stress ◽  
Static Load ◽  
Spur Gear ◽  
Tooth Flank

3129 Measurement of Contact Stress on Tooth Flank of Spur Gear Subject to Static Load : In Case of Gear Pair with Misalignment

2008 ◽  
Vol 2008.4 (0) ◽  
pp. 55-56
Author(s):  
Ichiro MORIWAKI ◽  
Tatsuya HASHIMOTO ◽  
Natsuki Hirata ◽  
Morimasa Nakamura
Keyword(s):  
Contact Stress ◽  
Static Load ◽  
Spur Gear ◽  
Gear Pair ◽  
Tooth Flank

Spur Gear Lubrication Analysis with Dynamic Loads

2013 ◽  
Vol 56 (1) ◽  
pp. 41-48 ◽  
Author(s):  
Huaiju Liu ◽  
Ken Mao ◽  
Caichao Zhu ◽  
Siyu Chen ◽  
Xiangyang Xu ◽  
...  
Keyword(s):  
Spur Gear ◽  
Dynamic Loads
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