Supervisor:
Southwest Ordnance Industry Bureau
Organizer:
Chongqing Ordnance Industry Society
Chongqing University of Technology
Chongqing University of Technology
Design and vibration reduction performance analysis of biomimetic X shaped suspension with inerter
| DOI: | 10.11809/bqzbgcxb2024.06.036 |
| Keywords: | tracked vehicle suspension; suspension design; inerter; vibration reduction analysis |
| Abstract: | Aiming at the problem of vibration reduction performance optimization of tracked vehicle suspension, a bionic X shaped tracked vehicle suspension with an inerter was designed, by combining the ball screw inerter with the bionic X shaped structure. Firstly, taking a single suspension as the research object, the vibration analysis is carried out with the displacement transmissibility as the performance indicator. The results show that compared with the traditional spring damping suspension and bionic X shaped suspension, the performance of the suspension is better and the main frequency is lower after adding the inerter. When the input excitation is in the range of 5~11 Hz , the displacement transmissibility of the system is the lowest and the vibration reduction effect is the best. Secondly, a set of tracked vehicle half car model is established, and the nod acceleration of the vehicle is analyzed by using three different levels of random road signals as excitation. Compared with the traditional bionic X shaped suspension, the nodding acceleration of the inerter suspension is reduced by 9.3%, 42.98% and 65.91% respectively. And the higher the road grade, the more complex the road conditions, the lower the suspension nod acceleration, the better the damping effect.The research results provide a reference for the design of new tracked vehicle suspension with better damping effect by using inerter and bionic X shaped structure. |
| Published: | 2024-06-28 |