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Based on the wheel retractable pneumatic suspension control system virtual prototyping

Author: HaoPengFei
Tutor: ZhaoYouQun
School: Nanjing University of Aeronautics and Astronautics
Course: Vehicle Engineering
Keywords: Retractable wheels Hydraulic system modeling Pneumatic spring Ride ADAMS AMESim
CLC: U469.693
Type: Master's thesis
Year: 2011
Downloads: 117
Quote: 0
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Abstract


Wheeled amphibious of the vehicle an important performance is the Water traveling speed, in the engine and water spray propulsion, Interconnects Technical of certain circumstances by reducing the Beach Water driving resistance can improve the Water driving speed, through the the wheels's put away the formation of streamlined body can reduce the driving resistance. This paper pairs of wheeled amphibious cart wheel retractable system the key technology of conducted a research and analysis and Modeling - Simulation. The wheels retractable system mainly including hydraulic control system, the retractable mechanical structure, suspension structure and oil and gas springs. This article pairs of following several part of the conducted a discussion: (1) to collect collate the domestic and foreign wheeled amphibious vehicle wheel retractable's technology patents, and the each patent into the study comparing. In the pairs of patent summarize based on the analysis, designed a set of applicable to Yu a variety of Wheeled amphibious vehicle wheel retractable's suspension institutions, including the accessories Power units interrupting device, that annex can make the pneumatic Suspension in do not need to retractable impetus the time interrupt suspension and Power to provide device equipped hydraulic system connection. In the ADAMS software, middle of this retractable Suspension conducted a modeling, analysis of the impact oil and gas spring put away O'clock the largest amount of compression on the upper the fulcrum of the positioning and this positioning change on the Suspension each critical point is affected by force the impact of. (2) through pairs of amphibious vehicle wheel retractable the performance requirements of carry on analysis, design a set of be able to accurately to achieve the wheels retractable of the hydraulic retractable control system, in the AMESim in the establishment of proportional velocity regulating valve is model as an of the hydraulic system's main control element, and the entire hydraulic system conducted a modeling and simulation. In order to make hydraulic system simulation O'clock of the mechanical load even more accurate, and will ADAMS middle to establish of the retractable suspension model import the Based on AMESim software to establish the's in the hydraulic system conduct a joint simulation analysis. (3) take advantage of oil and gas a spring the height of the adjustable performance, the will oil and gas spring introduced into the the wheels retractable technique, the in order to get oil and gas stiffness of the spring damping characteristics, in the AMESim middle pairs of oil and gas springs conducted a modeling and analysis, the same time analyzed the accumulator inflatable pressure, the rated volume, the throttle hole diameter and other parameters pairs of oil and gas springs performance the impact of. (4) In order to get ride comfort Xing analysis of the incentive pavement, analyzed the Sayers road surface model, using this model generated the both sides of the pavement does not Pingdu, and the Sayers model the various parameters of conducted a research and analysis. In the ADAMS / car in the establishment of vehicle model, using this model in the ADAMS / car ride medium pairs of whole vehicle basis for GB conducted a ride comfort Xing analysis, the pairs of simulation results conducted a processing and Evaluation.

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CLC: > Transportation > Road transport > Automotive Engineering > A variety of automotive > Special Purpose Vehicle > Military vehicles , amphibious vehicles
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