Simulation Experiment and Teaching Research of a Land-Based Ship Engine Room

Abstract

In order to make up for the shortage of scientific research experiments and teaching in land-based engine room laboratory, a simulation system is designed and developed using B/S mode to simulate scientific research experiments, teaching and operation processes, and designed algorithms to simulate the propulsion characteristics of the main propulsion diesel engine. A large number of experiments were carried out, and the relationship curve between output power and fuel consumption rate of the main engine was obtained in the laboratory. Apache JMeter was used to test the pressure of the simulation system deployed in Dalian Maritime University Cloud. It is found that under the test conditions, the average response time of sample request is 330 ms, which is far superior the design standard of 2 s. There is no abnormal response to all requests, and all indicators fully meet the requirements of the project team. The simulation system fills the gap in the application of panoramic interactive technology in Marine engineering education, and provides a reference for the exploration of "intelligent +" experiment and teaching mode in maritime university laboratories.

Incorporating rivest-shamir-adleman algorithm and advanced encryption standard in payment gateway system

“…If the transaction exceeds 6 seconds, it is considered poor performance. The apache JMeter is considered appropriate for those kind of tests [30]- [32]. In the Table 4, the results of testing using apache JMeter are presented in development server, showing the time range of transactions.…”