Application of Screw Theory to the Analysis of Instant Screw Axis of Vehicle Suspension System

Lee, Jae Kil; Shim, Jae Kyung

doi:10.1007/s12239-019-0013-z

Cited by 4 publications

(3 citation statements)

References 10 publications

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“…The vehicle’s physical parameters and the initial joint positions of the front and rear suspensions are listed in Tables 1 and 2. 20…”

Section: Numerical Examplementioning

confidence: 99%

A generalized method for three-dimensional dynamic analysis of a full-vehicle model

Zhou

2020

Proceedings of the Institution of Mechanical Engineers, Part D:

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Dynamic performances of the vehicle are significantly influenced by the suspension mechanisms. An understanding of the effects of the suspension kinematics and statics (or, briefly, kinestatics) is crucial to improve the dynamic performances of a vehicle. However, the suspension kinestatics is often neglected in the dynamic analysis. This paper presents a generalized full-vehicle model for the three-dimensional dynamic analysis, which consists of two pairs of the front and rear spatial suspension mechanisms. Each suspension is represented by a corresponding instantaneous screw joint supporting the vehicle body at any instant. The full-vehicle model is viewed to be a 6-degree-of-freedom spatial parallel mechanism. As the spatial parallel mechanism, the kinematics and statics of the full-vehicle model are analysed using the theory of screws. Taking the suspension kinestatics and tyre dynamics into consideration, the dynamic equations of the full-vehicle model are formulated in terms of the Lagrangian equations. As immediate applications, the dynamic behaviours of a vehicle are simulated and evaluated under two different road disturbances, respectively. By comparing with the simulation results from two other widely used methods, it confirms the validity of the theoretical method.

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“…The vehicle’s physical parameters and the initial joint positions of the front and rear suspensions are listed in Tables 1 and 2. 20…”

Section: Numerical Examplementioning

confidence: 99%

A generalized method for three-dimensional dynamic analysis of a full-vehicle model

Zhou

2020

Proceedings of the Institution of Mechanical Engineers, Part D:

View full text Add to dashboard Cite

show abstract

“…All these steps have always led to improving the comfort and driving quality of the vehicles. After the arrival of the control units and more complicated electronics the electronically controlled dampers and stabilisers were implemented [4][5][6][7][8]. These systems were developed again to improve the car driving qualities.…”

Section: Introductionmentioning

confidence: 99%

Development of a New System for Attaching the Wheels of the Front Axle in the Cross-Country Vehicle

et al. 2020

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In the introduction of this article the authors deal with a general overview in the area of suspending the wheels of the road vehicles. It is important for creating an original design and this is the core of the operation. The implementation of the design to a real vehicle created a space for modifying this design. The necessity of a modification shows important especially after the MKP analysis of the original design. Currently the Industrial Property Office of the Slovak Republic grants the presented design solution the rights for protection as a utility model. For granting the protection it was not necessary to prove the safety parameters of the design. However, the possibilities of the real utilisation are fully dependent on the safety conditions. Therefore, the research process presented in this article is necessary for building a prototype of this system. As the area is relatively extensive, it was necessary to divide it into several parts. The design and its importance for the industry are presented in the first part. The second part deals with analytical calculations and numerical simulations of the quasi-static loading of the structure. Furthermore, the article considers the kinematic and dynamic area of the vehicle. The authors also deal with the sensitivity analysis of the change of the wheel camber. This simulation is realised by the programme Altair Motionview for the vertical motion of the front axle through the presented design.

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“…Such a representation for motion was widely adopted in the fields of robotics and motion analysis as it represents a convenient way to describe and manipulate trajectories and the relative motion between rigid bodies, such as the consecutive segments of a robot Sensors 2020, 20, 49 2 of 14 manipulator [6][7][8]. Another example is a recent study where the ISA representation was exploited to determine the twist and the wrench acting on a vehicle suspension system [9].…”

Section: Introductionmentioning

confidence: 99%

Estimating the Instantaneous Screw Axis and the Screw Axis Invariant Descriptor of Motion by Means of Inertial Sensors: An Experimental Study with a Mechanical Hinge Joint and Comparison to the Optoelectronic System

Ancillao

Vochten

Aertbeliën

et al. 2019

Sensors

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The motion of a rigid body can be represented by the instantaneous screw axis (ISA, also known as the helical axis). Recently, an invariant representation of motion based on the ISA, namely, the screw axis invariant descriptor (SAID), was proposed in the literature. The SAID consists of six scalar features that are independent from the coordinate system chosen to represent the motion. This method proved its usefulness in robotics; however, a high sensitivity to noise was observed. This paper aims to explore the performance of inertial sensors for the estimation of the ISA and the SAID for a simple experimental setup based on a hinge joint. The free swing motion of the mechanical hinge was concurrently recorded by a marker-based optoelectronic system (OS) and two magnetic inertial measurement units (MIMUs). The ISA estimated by the MIMU was more precise, while the OS was more accurate. The mean angular error was ≈2.2° for the OS and was ≈4.4° for the MIMU, while the mean standard deviation was ≈2.3° for the OS and was ≈0.2° for the MIMU. The SAID features based on angular velocity were better estimated by the MIMU, while the features based on translational velocity were better estimated by the OS. Therefore, a combination of both measurements systems is recommended to accurately estimate the complete SAID.

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Application of Screw Theory to the Analysis of Instant Screw Axis of Vehicle Suspension System

Cited by 4 publications

References 10 publications

A generalized method for three-dimensional dynamic analysis of a full-vehicle model

A generalized method for three-dimensional dynamic analysis of a full-vehicle model

Development of a New System for Attaching the Wheels of the Front Axle in the Cross-Country Vehicle

Estimating the Instantaneous Screw Axis and the Screw Axis Invariant Descriptor of Motion by Means of Inertial Sensors: An Experimental Study with a Mechanical Hinge Joint and Comparison to the Optoelectronic System

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