State-of-the-art and challenges of railway and road vehicle dynamics with multibody dynamics approaches

Bruni, Stefano; Meijaard, J. P.; Rill, Georg; Schwab, A. L.

doi:10.1007/s11044-020-09735-z

Cited by 56 publications

(30 citation statements)

References 200 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As far as the speeding-up bogies are concerned, the dynamical design methodology refers to a set of method systems based on the accurate analyses of complex constrained inner forces, so as to avoid as far as possible the strong coupling interface formations of wheel-rail contact and/or bogie to servicing car body. e dynamical design methodology of speeding-up bogies is composed of the following three key techniques: (1) e analysis graph of full-vehicle stability properties and variation patterns; (2) the improved interface transaction strategy of flexible car body to full-vehicle MBS; and (3) the accurate analyses of complex constrained inner forces. e case investigation of car body fluttering phenomenon is directed by the dynamical design methodology.…”

Section: Dynamical Design Methodology Of Speeding-up Bogiesmentioning

confidence: 99%

“…However, due to the inherent defects, like floor without longitudinal beams and side walls without frameworks, the dynamical effects of internal interface may have substantial impacts on the evaluations of vibration comfort and structural fatigue. So, in reviewing the MBS (Multi-Body System) approaches for rail and road vehicles, Bruni pointed out that the higher frequency response analysis is a new task or challenge [1]. Same as the wing fluttering of servicing fighters, the lateral elastic vibration of servicing car body is the primary mechanical problem to be solved in the design process of HSRS rigid-flex coupling system.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Dynamical Effect Investigations of Component’s Internal Interface by Using Techniques of Rigid‐Flex Coupling Simulation

Piao

et al. 2021

Shock and Vibration

View full text Add to dashboard Cite

As a component of servicing car body, the internal interfaces of aluminum alloy carbody include all connections of equipments hanged under floor and mounted on roof, which are expected to form the weak coupling relationship. For an imported prototype with primary hunting phenomenon, a dynamical design methodology of speeding-up bogies was proposed. The analysis graph of full-vehicle stability properties and variation patterns is used to clarify a self-adaptive improvement direction, i.e., λeN ≥ λemin, and λemin = (0.03–0.05). Therefore, the central hollow tread wear can be self-cleaned in time or regularly by crossing over the dedicated lines of different speed-grades. The modified strategy with strong/weak internal interface transaction of servicing car body was furthermore formulated based on the dynamical condensation method of component interface displacements. The causal relationship between bogie vibration alarm and car body fluttering phenomenon was then demonstrated by using techniques of rigid-flex coupling simulation. The self-excited vibration of traction converter intersects with the unstable hunting oscillation, ca. 9.2/9.3 Hz, which is consistent with the conclusions of tracking-test investigations on two car body fluttering formations. The technical space to promote the construction speed is thereby lost completely because of ride comfort decline, unsafe vibration of onboard electrical equipments, and weld fatigue damage of aluminum alloy car body. However, the rigid-flex coupling simulation analyses of trailer TC02/07 confirm that the safety threshold of bogie vibration warning can be appropriately increased as long as the lateral modal frequency of traction converters is greater than 12 Hz, preferably close to 14 Hz.

show abstract

Section: Dynamical Design Methodology Of Speeding-up Bogiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Dynamical Effect Investigations of Component’s Internal Interface by Using Techniques of Rigid‐Flex Coupling Simulation

Piao

et al. 2021

Shock and Vibration

View full text Add to dashboard Cite

show abstract

“…The multibody methodology allows modelling the vehicle and the track and simulating their mutual interaction, to obtain the vehicle response and the associated wheel-rail contact forces [13,14]. Multibody simulations are widely used to appraise safety against derailment [15][16][17][18], virtual homologation [15,19], wear [20], comfort assessment [21], sensitivity of the vehicle with respect to design and operation parameters [11,22] and to support the vehicle design process [13].…”

Section: Introductionmentioning

confidence: 99%

Derailment study of railway cargo vehicles using a response surface methodology

Pagaimo

Magalhães

Costa

et al. 2020

Vehicle System Dynamics

View full text Add to dashboard Cite

Railway bogies of the Y25 family are the most common type of bogies used in freight wagons in Europe. Their widespread use is associated with their low cost and low maintenance requirements. However, this family of bogies presents poor curving performance and a history of derailments. Although numerical simulations are a powerful tool to study railway dynamics, derailment scenarios involve complex operational and vehicle conditions that increase the multivariate aspect of the problem. Thus, simulating all possible scenario variants is unfeasible from a computational point of view due to limitations of time and computational resources. This paper proposes an approach based on a Response Surface Methodology to study the combined influence of uncertain parameters on the derailment potential of a railway vehicle running in realistic conditions. A case study of a real derailment is used to demonstrate the potential of this approach. A set of scenario configurations is identified using a Design of Experiments approach, and each one of them is simulated on the commercial software VAMPIRE. Then, the response surface functions of the quantities used to assess derailment are generated, and the conditions that maximise the derailment potential are identified. The results reveal a combination of asymmetric loading, excessive speed, and failure of a Lenoir link may cause extreme wheel unloading in the study developed. This work reveals the advantages of using a Response Surface Methodology to identify the conditions that maximise the derailment potential.

show abstract

“…Since their first appearance in 1916, railway simulation models have been steadily growing and evolving. Nowadays, there is commercial software that is specifically developed for precise rolling stock dynamic simulations such as GENSYS, MEDYNA, NUCARS or VAMPIRE, and general purpose multibody software like ADAMS or SIMPACK with extensions for railway simulations [4]. Despite this, some researchers are committed to the development of their own simulation codes.…”

Section: Introductionmentioning

confidence: 99%

Application and Experimental Validation of a Multibody Model with Weakly Coupled Lateral and Vertical Dynamics to a Scaled Railway Vehicle

Urda

Muñoz

Aceituno

et al. 2020

Sensors

View full text Add to dashboard Cite

In this paper, a multibody dynamic model of a railway vehicle that assumes that vertical and lateral dynamics are weakly coupled, has been experimentally validated using an instrumented scaled vehicle running on a 5-inch-wide experimental track. The proposed linearised model treats the vertical and lateral dynamics of the multibody system almost independently, being coupled exclusively by the suspension forces. Several experiments have been carried out at the scaled railroad facilities at the University of Seville in order to test and validate the simulation model under different working conditions. The scaled vehicle used in the experiments is a bogie instrumented with various sensors that register the accelerations and angular velocities of the vehicle, its forward velocity, its position along the track, and the wheel–rail contact forces in the front wheelset. The obtained results demonstrate how the proposed computational model correctly reproduces the dynamics of the real mechanical system in an efficient computational manner.

show abstract

State-of-the-art and challenges of railway and road vehicle dynamics with multibody dynamics approaches

Cited by 56 publications

References 200 publications

Dynamical Effect Investigations of Component’s Internal Interface by Using Techniques of Rigid‐Flex Coupling Simulation

Dynamical Effect Investigations of Component’s Internal Interface by Using Techniques of Rigid‐Flex Coupling Simulation

Derailment study of railway cargo vehicles using a response surface methodology

Application and Experimental Validation of a Multibody Model with Weakly Coupled Lateral and Vertical Dynamics to a Scaled Railway Vehicle

Contact Info

Product

Resources

About