Analysis Of Dual-front-axle-steering Trucks’ Usage In China

With the continuing in-depth controlling overload in transportation, and the overallpromotion of expressway weighing charges, Dual-front-axle-steering trucks not only satisfythe policy and regulatory requirements, but also keep consistent with the need of the transportindustry users. It adapts to the market development, wins the the market acceptance, and salesincrease year by year. Dual-front-axle-steering trucks are widely used on the expressway.By the2006-2011expressway trucks’ traffic survey, we get to know the usage ofDual-front-axle-steering trucks on the expressway. In China’s expressway network traffic flow,Dual-front-axle-steering trucks account for a growing proportion of expressway traffic flow.Through statistical analysis of each axis type trucks sales (2005-2011) in China, we get toknow how Dual-front-axle-steering trucks’ market changes. With tracking the policy ofcontrolling overload in transportation, and understanding the guidance of the expresswayweighing charges, the paper discussed the mechanism with which Dual-front-axle-steeringtrucks’ market expansion.Dual-front-axle-steering trucks have abnormal wear of tires, steering wheel jitter, tireswing vibration and other issues in the process of using. This paper introduces steering systemstructure and steering principle of Dual-front-axle-steering trucks, based on the analysis of thepositional parameters of the wheel, lists the characteristics of abnormal wear of the tires,discusses the factors of design&manufacture and use which affect the abnormal tire wear,and the corresponding improvements was put forward. In addition, this paper exploredDual-front-axle-steering trucks’ steering wheel shimmy and its mechanism, and the solutionwas provided from two aspects of structure and design.