Research Article
Optimization Method of the Car Seat Rail Abnormal Noise Problem Based on the Finite Element Method
Table 7
Valve table of experimental design variable.
| | Factor | Notes | Lower limit | Initial value | Upper limit |
| | t_up | Internal rail thickness (mm) | 1.30 | 1.40 | 1.50 | | t_down | Outer rail thickness (mm) | 1.30 | 1.40 | 1.50 | | E | Elastic modulus of guide material (Mpa) | 200000 | 210000 | 220000 | | nu | Poisson’s ratio of guide material | 0.27 | 0.3 | 0.33 | | Guide material density () | | | | | r_up | Ridge radius of inner rail (mm) | −1 | 0 | 1 | | r_down | Ridge radius of outer rail (mm) | −1 | 0 | 1 | | d | Manufacturing error of ball diameter (mm) | −1 | 0 | 1 |
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