| Naval gun has strong flexibility, mobility and low price relative to the missile, which play an important role in battles of naval and air defense, littoral operation as well as reef on defense. As a naval battle platform, ammunition transportation system has played a crucial role. But during the continuous work process of transshipment, such demands as projectile transferring stability, cornering attitude retain-ability and interface anti-impact property existed in active naval transport system. In the respects, through the analysis on peristaltic mechanism of movement of biological system was carried out, this article proposes peristaltic transport methods and systematic scheme of ammunition transportation based on peristaltic delivery, designed to meet the complex working conditions needed for performance requirements of the ammunition transportation system (ATS), to enhancing the working efficiency under the continuous operation condition and the survive ability in wartime.First of all, the peristaltic mechanism was biologically analyzed. Further, structure properties and movement characteristics of various peristaltic creatures were systematically researched. The biological peristalsis was classified in order to extract the excellent structural peristaltic characteristics and to determine the peristaltic performance parameters. Based on Hill theory, three elements mechanics model of biological muscle peristalsis was established.And from the results of the peristaltic performance simulation tests, the applicability of biological peristaltic mechanical properties were verified.Secondly, peristaltic delivery characteristics was researched based on peristaltic characteristics. Peristaltic transport mechanism was proposed with establishing its structure model and mathematical model. Performance evaluation parameters of peristaltic delivery was determined, including stability, impact resistance, posture retention and rapidity.Peristaltic delivery characteristic was analyzed and verified by peristaltic delivery simulation.The performance of different peristaltic delivery was compared with corresponding to different transport requirements of conditions and the factor of peristaltic transport system was determined. Linear transfer model of telescopic peristaltic, cornering transport model of bending peristaltic, redirecting transport model of meandering peristaltic was established that based on peristaltic transport characteristics with mechanics analysis, kinematics analysis and vibration analysis and stability, impact resistance and continuity of peristaltic ammunition transport system was verified.Thirdly,based on peristaltic delivery characteristics, peristaltic ammunition transport system was designed. Using pneumatic article muscles as the power, continuous delivery of ammunition was achieved by staggered arrangement. Feasibility analysis of transport functions was done from three areas that including principle, the ability, and the drive control. System architecture and transport interface were designed for achieving peristaltic ammunition delivery. Work flow of the system and control principles were determined.Properties of pneumatic muscles and the role of law were verified by pneumatically simulation. Ammunition transport continuity of staggered artificial muscles and feasibility of pneumatic control system were analyzed by peristaltic ammunition transport simulation.Finally, the boundary conditions for transport systems was determined and the simulation analysis of Peristaltic ammunition transport was made in multiple boundary conditions,including rapid analysis, impact analysis and performance analysis of the back seat. Through flexible simulation, stress of delivery vehicle segment and the natural frequency of the system were calculated by modal analysis. Compared performance of chain feeding system and performance of drum feeding system drum, advantages for peristaltic feeding system were resulted.Based on peristaltic delivery mechanism, the design of ammunition transport system was proposed in this paper. Technical support for the physical prototype manufacturing and reference value for the design of naval gun ammunition transport system were provided. |
