Talk:Self propelled lawnmower

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Client comments on the Mechanical Analysis

This mechanical analysis focuses on a bracket for the engagement of power transmission. It is indeed critical to the operation of the lawnmower machine. Here are few comments to the analysis:

• In the freebody diagram, it does not show the screw fastening force. According to the assembly diagram 4, there is a screw to provide a holding force to hold the bracket and allow it rotate on the post. Please make sure your forces are balanced in all directions.
• Please indicate which FEA software you used for the analysis and also provide the material property settings, e.g. tensile strength, Young’s modulus, etc.
• The boundary conditions in the FEA are not well described. Please use textboxes in the picture to indicate your boundary condition settings. It seems to me that two holes on the brackets have been applied zero DOF in all directions (green arrows), which may not be correct. Please double check it.