In the study of crewmember performance in land-driven vehicles, it is necessary to consider the effects of vibration on the human body. The Advanced Vehicle Architecture for a Net enabled Combat Environment Technology Demonstrator Project (ADVANCE TDP) aims to demonstrate improved crew performance using an integrated multi-layered vectronics network, supported by an active suspension system tha...

Lightweight is an important measure to the fuel efficiency and the cost reduction in development of contemporary vehicles. However, how the lightweight structure could affect the NVH performance or ride comfort of a vehicle needs to be carefully investigated. In this paper, the effect of a lightweight rear differential unit of a sport utility vehicle on ride comfort was studied. A multi-body dy...

Although much is known about human body vibration discomfort, there is little research data on the effects of vibration on vehicle occupant drowsiness. A laboratory experimental setup has been developed. Vibration was applied to the volunteers sitting on the vehicle seat mounted on the vibration platform. Seated volunteers were exposed to a Gaussian random vibration, with 1-15 Hz frequency band...

In this paper, an in-wheel vibration absorber for In-wheel-motor electric vehicle (IWM EV) is designed, and a comprehensive control strategy of in-wheel absorber and vehicle suspension is proposed to improve vehicle ride comfort. The proposed in-wheel vibration absorber, designed for suppressing the motor vibration, is composed of a spring and a controllable damper. The values of in-wheel sprin...

The paper concerns an effect of the damping force controlling a vehicle suspension system. The investigated vehicle suspension system consists of innovatory Vacuum Packed Particles controllable dampers which allow controlling the vehicle body vibration. The main objective of performed and presented in the paper studies is to determine properties of the Vacuum Packed Particles (VPP) damper and p...

As high-speed trains operate in more and more countries and their maximum speed increases, the vibration induced by the train has become an important issue. The dynamic coupling between the vehicle, track and ground has to be assessed for its effects on safety, stability and maintenance costs. A particular issue, especially for soft soils, is the critical speed at which the train reaches the wa...

Based on the theory of vehicle track coupling dynamics, the local vibration of the high-speed railway box girder is analyzed by the Finite Element Method and the model is simulated with the solid elements. Through the study of vibration characteristics of the selected 6 sensitive points, the local vibrations in different parts of the box girder are figured out. It is compared the response of th...

This study characterized whole-body vibration exposures in a set of vehicles that operate in open-pit mines and compared three different daily exposure parameters based on the ISO 2631-1:1997 and ISO 2631-5:2004 standards. Full-shift, 6 to 12-hour, continuous whole-body vibration measurements were collected from 11 representative types of vehicles in terms of hours of operation and number of ve...

Aiming at a large number construction of high-speed railway and elevated railway passenger station, make a dynamics simulation study on the law of platform vibration characteristics on the situation of high-speed train passing through. First, make a brief introduction on the theory of the interaction of the vehicle-elevated station structure in vertical and transverse directions. Secondly, on t...

One of main NVH (Noise, Vibration and Harshness) deliverables for Chrysler Development System (CDS) is a fully correlated finite element model to be used for the referencing and the target setting process for the future program. To satisfy CDS requirements, a comprehensive feasibility study using the finite element modeling techniques along with the experimental methods to validate the CAE (Com...