Correlating Requirements Regarding the Command and the Mechanical Structure of the Automotive Steering System

Alexandru, Petre; Alexandru, Cătălin

doi:10.1007/978-90-481-3522-6_17

Cited by 8 publications

(13 citation statements)

References 4 publications

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“…where the electromagnetically gauge covariant derivative is D µ = ∂ µ + iQA µ , and higherorder terms in the field strength appear parametrically in the E-dependent couplings in Eq. (10). The parameter E(E) is the charged particle's rest energy, which has the weak field expansion in Eq.…”

Section: B Charged Spin-half Baryonsmentioning

confidence: 99%

“…Neutral hadrons in electric fields have been investigated with lattice QCD using the quenched approximation at pion masses greater than 500 MeV [8,9]. A recent calculation has explored neutron properties at lower pion masses with electrically neutral sea quarks [10]. There has also been a fully dynamical calculation for the neutron in an electric field using a pion mass of 760 MeV [11].…”

Section: Introductionmentioning

confidence: 99%

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Extracting nucleon magnetic moments and electric polarizabilities from lattice QCD in background electric fields

2010

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Nucleon properties are investigated in background electric fields. As the magnetic moments of baryons affect their relativistic propagation in constant electric fields, electric polarizabilities cannot be determined without knowledge of magnetic moments. This is analogous to the experimental situation, for which determination of polarizabilities from the Compton amplitude requires subtraction of Born terms. With the background field method, we devise combinations of nucleon correlation functions in constant electric fields that isolate magnetic moments and electric polarizabilities. Using an ensemble of anisotropic gauge configurations with dynamical clover fermions, we demonstrate how both observables can be determined from lattice QCD simulations in background electric fields. We obtain results for the neutron and proton, however, our study is currently limited to electrically neutral sea quarks. The value we extract for the nucleon isovector magnetic moment is comparable to those obtained from measuring lattice three-point functions at similar pion masses.

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Section: B Charged Spin-half Baryonsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Extracting nucleon magnetic moments and electric polarizabilities from lattice QCD in background electric fields

2010

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“…The front steering subsystem ( Figure 10) contains a classical rack-pinion gearbox, as well the transmission from the steering wheel to gearbox. The MBS model includes four bodies as follows: steering wheel shaft (25), intermediate shaft (26), pinion shaft (27), and rack (28). The three shafts are connected among themselves through universal joints, while revolute joints are used to connect them to the mount part from the car body subsystem.…”

Section: The Virtual Prototype Of the Four-wheel Steering Vehiclementioning

confidence: 99%

“…First of all, an analytical algorithm for designing the cam-based rear steering box is developed in the second section of the article. This algorithm is coupled with the mathematical procedure presented in Alexandru and Alexandru 26 for computing the steering angles of the front wheels, which are then used in the design process of the rear steering box, in the integral steering context. Further, in the third section of the article, the dynamic simulation of the four-wheel steering vehicle (which integrates the proposed rear steering subsystem) is performed by using the virtual prototyping environment ADAMS (Automatic Dynamic Analysis of Mechanical Systems), which is the world's most famous and widely used MBS (Multi-Body Systems) dynamics software.…”

Section: Introductionmentioning

confidence: 99%

“…The design methodology (which is an innovative/ original one) starts with the computation of the steering angles of the front wheels (by using the analytical algorithm presented in Alexandru and Alexandru 26 ), continuing with establishing the motion amplitude of the cam, the phase angles of the cam profile, and the motion amplitudes of the translational follower, finally determining the linear displacements of the follower, and the polar coordinates of the cam profile.…”

Section: Introductionmentioning

confidence: 99%

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A mechanical integral steering system for increasing the stability and handling of motor vehicles

Alexandru

2015

Proceedings of the Institution of Mechanical Engineers, Part C:

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The article deals with the design, modeling, and simulation of an innovative four-wheel steering system for motor vehicles. The study is focused on the steering box of the rear wheels, which is a cam-based mechanism, while the front steering system uses a classical pinion-rack gearbox. In the proposed concept, the four-wheel steering aims to improve the vehicle stability and handling performances by considering the integral steering law, which is formulated in terms of correlation between the steering angles of the front and rear wheels. In this regard, a double-profiled cam is designed, in correlation with the input motion law applied to the steering wheel. The cam profile dictates (prescribes) the translational movement of the rear follower, which is connected to the left and right steering tierods, turning-as appropriate-the rear wheels in the same direction (for stability) or in opposite (for handling) to the front wheels. The cam-based mechanism is able to carry out complex motion laws, providing accurate integral steering law. The dynamic modeling and simulation of the four-wheel steering vehicle was performed by using the Multi-Body Systems package Automatic Dynamic Analysis of Mechanical Systems of MSC.Software, the full-vehicle model containing also the front and rear wheels suspension systems, as well the vehicle chassis (car body). The dynamic simulations in virtual environment have resulted in important results that demonstrate the handling and stability performances of the proposed four-wheel steering system by reference to a classical two-wheel steering vehicle.

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Applications of the Ackerman Steering and Electronic Differential in Modern Electric Drive Automotive Systems

Szilagyi

Ciupe

Maniu

2013

The 11th IFToMM International Symposium on Science of Mechanisms and Machines

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Correlating Requirements Regarding the Command and the Mechanical Structure of the Automotive Steering System

Cited by 8 publications

References 4 publications

Extracting nucleon magnetic moments and electric polarizabilities from lattice QCD in background electric fields

Extracting nucleon magnetic moments and electric polarizabilities from lattice QCD in background electric fields

A mechanical integral steering system for increasing the stability and handling of motor vehicles

Applications of the Ackerman Steering and Electronic Differential in Modern Electric Drive Automotive Systems

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