Dynamic simulation of seat suspension system with virtual prototyping technology

Le, Thanh Danh; Nguyen, Peter H.

doi:10.1299/jamdsm.2017jamdsm0056

Cited by 7 publications

(6 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…with θ(s) = µ 1 (s) + 2µ 2 (s) + 3µ 3 (s) Equation ( 30) revealed that sθ(s) > 0. By replacing u hit in Equation ( 17) by Equation ( 30), time derivation of the sliding surface is rewritten as shown in Equation (31).…”

Section:  mentioning

confidence: 99%

“…Furthermore, a fuzzy logic inference mechanism removes the chattering issue from conventional sliding mode control by employing a hitting control law. Currently, thanks to the robust development of engineering software, virtual prototyping technology can simulate and evaluate real system performance without experiments, lowering manufacturing costs and errors while ensuring product quality [30][31][32][33][34][35][36]. The tracking control performance of the EHA is evaluated through a virtual model created using Amesim software.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Development of an Adaptive Fuzzy Sliding Mode Controller of an Electrohydraulic Actuator Based on a Virtual Prototyping

2023

View full text Add to dashboard Cite

The EHA (electro hydraulic actuator) has a notable advantage over conventional hydraulic actuators as it uses a closed-loop circuit, reducing the size and volume of oil, and eliminates pressure losses caused by valve orifices. However, accurate control performance of EHA is difficult to achieve using a traditional PID (proportional integral derivative) controller due to the strongly nonlinear, time-varying, and unknown dynamics of the system. Hence this paper seeks to address this problem by proposing a design of an intelligent controller for the EHA. The proposed adaptive fuzzy sliding mode controller (AFSMC) is developed as a hybrid of the adaptive, fuzzy logic, and sliding mode algorithms. To reduce costs and time, a virtual prototype approach is also proposed instead of experimentations to evaluate the performance of the proposed controller. The virtual model of the EHA is built in Amesime software, and then embedded into Matlab/Simulink where the AFSMC is developed and tested to obtain the position responses of the EHA. The results show that the AFSMC is highly successful and more efficient than the traditional PID at controlling the position of the piston accurately.

show abstract

Section:  mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Development of an Adaptive Fuzzy Sliding Mode Controller of an Electrohydraulic Actuator Based on a Virtual Prototyping

2023

View full text Add to dashboard Cite

show abstract

“…To improve the efficiency of isolation of seat vibrations under low excitation frequencies, a model based on the philosophy of the previous QZS is proposed by Le and colleagues 16,25,26,37,38 (Figure 5). The main feature of this system is the use of two symmetric negative stiffness structures, consisting of one inclined bar ( b ) and one horizontal spring each ( K h ), coupled alongside a positive stiffness structure ( K v ).…”

Section: Simulation Modelsmentioning

confidence: 99%

“…NSS2 seat suspension model based on Le and colleagues. 16,25,26,37,38 at a random position x under the excitation z s .…”

Section: Simulation Modelsmentioning

confidence: 99%

Optimal design of passenger vehicle seat with the use of negative stiffness elements

Παπαϊωάννου

Voutsinas

Koulocheris

2019

Proceedings of the Institution of Mechanical Engineers, Part D:

View full text Add to dashboard Cite

A seat that provides good vibration isolation is of prime importance for passenger’s safety and health. The main conflict in seat suspensions implies that the increasing initial deformation of the system (increase in “static discomfort”) leads to better isolation of accelerations (increase in “dynamic comfort”). Many researchers have focused on overcoming or at least suppressing this conflict between load support capacity and vibration isolation by modeling new suspension systems, such as the so-called negative suspension systems. However, apart from the modeling of new suspension systems, optimization is an important part in designing a seat and finding the best compromise between these two objectives. Thus, in this work, four types of seat suspension systems with embedded negative stiffness elements are implemented and optimized in order to be benchmarked. Three of them have already been tested either in passenger or in an off-road vehicle seat. All the vibration isolators are optimized with genetic algorithms in respect to static and dynamic factors of ride comfort by applying constraints oriented to the objectives and the design of the structure. The optimization is implemented for two excitations, which correspond to a vehicle driving over road profiles of Classes A and B, and the common solutions are outlined.

show abstract

“…The simulation results indicate that the proposed mechanism reduces the camber angle generation and decreases the camber thrust. The dynamic characteristics of seat suspension system were investigated by the method of virtual prototype by LE and Nguyen (2017). The results show that the model with an auxiliary mechanism outperforms the linear counterpart.…”

Section: Introductionmentioning

confidence: 99%

Research on dynamic characteristics and reliability of a new heavy duty tractor

Yuan

2019

JAMDSM

View full text Add to dashboard Cite

Heavy duty tractor plays a vital role in traffic transport industry, in roads and building construction. In all of these applications, the structural failure of vehicle is the key issue in the process of safe running. This paper is devoted to the investigation of dynamic characteristics and fatigue reliability for the heavy duty tractor. Appling the non-similar substructure modeling technology, the novel integrated simulation model of heavy duty tractor is established. The total number of elements of the simulation model are reduced obviously from 4,380,449 to 117,065. A complete experimental process, which contains selecting digital acquisition module, the layout of sensors, the data processing, etc., is presented. The validity of the analysis method and the simulation model is verified by comparing with experimental results. The analysis methods of the random frequency domain and the multiaxial fatigue are employed to obtain the fatigue damage samples of heavy duty tractor. Meanwhile, the influences of confidence, pre-stress field and channel correlation on reliability are discussed. Moreover, on the basis of the system reliability distribution, the reliability of determined life and the index of B10 life are assessed. This study gives a reference for avoiding the structural failure and enhancing the system safety.

show abstract

Dynamic simulation of seat suspension system with virtual prototyping technology

Cited by 7 publications

References 13 publications

Development of an Adaptive Fuzzy Sliding Mode Controller of an Electrohydraulic Actuator Based on a Virtual Prototyping

Development of an Adaptive Fuzzy Sliding Mode Controller of an Electrohydraulic Actuator Based on a Virtual Prototyping

Optimal design of passenger vehicle seat with the use of negative stiffness elements

Research on dynamic characteristics and reliability of a new heavy duty tractor

Contact Info

Product

Resources

About