Research on Shipborne Helicopter Electric Rapid Secure Device: System Design, Modeling, and Simulation

Abstract

The research objective of this paper is to propose a new type of ERSD to solve the problem of the uncontrollable velocity of the claw in the current RSD. Firstly, the working characteristics of the RSD in ASIST are analyzed, and the design scheme of the transmission system of the ERSD is provided. The control system is designed by combining the vector control algorithm with the fuzzy adaptive PID control algorithm. On this basis, the trajectory planning of claw capture velocity is completed. Finally, the dynamics model of the transmission system of the ERSD is built by power bond graph theory, and the system simulation is carried out. The results show that the maximum capture time, velocity, and force were reduced by 47%, 53%, and 80%. In addition, when the ERSD is towing the helicopter, the mechanical claw can still provide good velocity tracking performance under a maximum interference load of 34,000 N.

Electrical Aircraft Ship Integrated Secure and Traverse System Design and Key Characteristics Analysis

“…Capture stage Once the helicopter lands on the deck, the ASIST needs to capture the probe rod as quickly as possible to avoid sideshow or rollover accidents. MPU and RSD need to complete the capture actions within no more than 1.5 s [6,39], including MPU driving RSD to capture the probe rod longitudinal and RSD driving the claw to capture the probe rod lateral, as shown in Figure 3.…”

“…The traction speed curve was set as a sinusoidal curve with a maximum of 0.04 m/s and minimum of 0.02 m/s and a period of 2 s according to the use requirements [6]. And the load curves of claw were set as a sawtooth curve with a maximum of 12 kN and 35 kN, according to the calculation results in Section 4.2, as shown in Figure 21.…”

“…ASIST, as the third-generation shipborne helicopter landing Landing System, Recovery Assist Secure and Traverse System, and Aircraft Ship Integrated Secure and Traverse System (ASIST). ASIST, as the third-generation shipborne helicopter landing assistance system, is considered the development direction in the future with its unique design scheme and excellent functional characteristics [6,7].…”

“…As shown in Figure 1, according to the landing action of the shipborne helicopter and the task execution sequence of ASIST, the process can be divided into five stages [6].…”

“…However, few studies have been conducted on the capture and traction stage of the shipborne helicopter, or few people have paid attention to the problems of large impact force and the cumbersome traction process existing in ASIST [6]. The former made the ASIST incompatible with small shipborne aircraft, while the latter made the traction operation inefficient.…”