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![Ferrari inerter fitted on F10 racer, 2010. Figure 2. Inerter model proposed by Smith [8]](profile/Sasa-Milojevic-2/publication/366492781/figure/fig1/AS:11431281109203229@1671782283423/Ferrari-inerter-fitted-on-F10-racer-2010-Figure-2-Inerter-model-proposed-by-Smith-8.jpg)
Source publication
Inerter devices are used in Formula 1 vehicles for a decade to reduce vertical and rolling displacement at the corner of the sharp racing curves and provide higher tire grip on racing challenges. To improve dynamics Formula SAE Car, several topological designs for suspension system are already proposed and published [1]. Based on our passive suspen...
Contexts in source publication
Context 1
... b is the inertance, and í µí± §̈ 1 , í µí± §̈ 2 are accelerations on two terminals ( figure 2). For inerter model presented in figure 2, the constant b can be obtained as: ...
Context 2
... b is the inertance, and í µí± §̈ 1 , í µí± §̈ 2 are accelerations on two terminals ( figure 2). For inerter model presented in figure 2, the constant b can be obtained as: ...
Context 3
... b is the inertance, and í µí± §̈ 1 , í µí± §̈ 2 are accelerations on two terminals ( figure 2). For inerter model presented in figure 2, the constant b can be obtained as: ...
Citations
... On the other hand, the safety issues related to the transport of chemical products in road transport are presented in [11][12][13]. The durability of vehicle suspension components refers to the duration of the onset of fatigue, defined as the number of cycles to a specific length of component failure under cyclic loads [6,14,15]. Therefore, the axles of trailers and semi-trailers are one of the main and most important elements that carry the greatest loads during the transport of goods. The axles of semi-trailers are a structural element that withstands both the full weight of the semi-trailer and the load, as well as the reactions of the road surface. ...
... The mesh elements of the tube were intentionally denser in the area of their interaction with both bushing parts. A similar number of elements (9528) and nodes (15,052) consist of two bushings. For both parts, the mesh of C3D4R elements had been refined at the area of contact with the welds. ...
Road transport plays an important role in the transport of goods and people and is important for the national economy. Damage usually excludes the means of transport from operation, which causes disruption of supply chains. One such damage is the failure of the suspension system of the vehicle or trailer, which usually occurs when the vehicle is heavily loaded. Such a defective system has been analyzed in this publication. Mathematical apparatus and finite element method (FEM) numerical simulations were used. A dangerous axle cross-section in terms of load was indicated and the maximum stresses in this area were calculated for two types of roads. On highways, the stress at the critical point was 199 MPa, and on uneven roads it increased to 304 MPa, which is comparable to the yield point. It was found that the second form of vibration may cause stresses in the damage area, but the excitation frequency would have to be quite high. The probability of such a load and failure event occurring is low under operating conditions.
It is found in this paper that like the displacement-dependent fluid inerter, a diamond-shaped structure inerter can be modeled as a mem-inerter, though with an extended parasitic mem-dashpot. Fortunately, the parasitic mem-dashpot generated by the diamond-shaped structure inerter is significantly smaller than that produced by the fluid mem-inerter. This indicates its potential for wider utilization in vibration systems. A quarter-car model of the seat suspension system equipped with the mem-inerter is established by the integrated Lagrange method, and it is exhibited in simulation that the seat suspension has load adaptivity. An investigation reveals the mechanism underpinning load adaptivity of the seat suspension from the perspective of equivalence of mem-inerter, namely, a mem-inerter with different initial displacement values can be equivalent to a semi-active inerter performing an initial-position-dependent inertance control strategy. Such a mechanism of mem-inerter plays an important part in load adaptivity of the seat suspension. Finally, the comparison with three types of seat suspensions demonstrates that seat suspensions equipped with mem-inerter offer superior vibration absorption capabilities. This study provides a theoretical reference into the direct replacement of linear elements in existing seat suspensions with memory elements to enhance performance.
