A novel sea wave simulation test environment construct for shipborne weapons systems

A key technology problem with respect to approval testing and evaluation is that of simulating sea wave impact in shipborne weapons systems, both in terms of land-based and sea-based tests. There are two main methods in use at present: the first method is to build large-scale water pool, in which the shipborne weapons system under test is mounted to a special model ship; the second method is to simulate sea wave impact via a six degree of freedom motion simulation platform. Because of their extremely high costs and engineering implementation difficulties, the two methods have not generally been used in practice. In this paper, a flight path and sea wave impact simulation system which transfer test data via CAN bus was designed and developed, and five mathematical models of typical flight paths (such as a horizontal line path) and three levels of sea wave impact models were established. The sea wave impact models were superimposed to flight path models via equivalent theory and coordinate mappings; and realistic fighter flights path and sea wave impact environments were, in shipborne weapons system land-based tests, constructed via an input simulation in which the mixed signal is input to the control loop of weapon system under test. The models and methods in this paper were used in a battery of naval gun approval tests, and the tracking performances of the shipborne weapons systems were simulated via MatLab. The simulation test results indicate that the new simulation method and system can meet the requirements of shipborne weapons Operational Test and Evaluation (OT&E) protocols completely.