A Study On Operation Process Simulation And Experiment Of JX493ZLQ Diesel Engine

With the development of modern science and technology, it is inevitable to design new type of engine. Presently there are many types of engines in the market,and the method to identify whether the engine is good or not depends on the verification on the experiment rig.With the development of computer technique, the use of CAE in engine design and test makes part of design work of engine and it is being divorced from experience design period progressively. The CAE provides a fast and veracious design measure for engine.Firstly the basic simulation theory and method of engine operation process are introduced in this paper. Based on ultimate of energetics, gas dynamics and engine, we apply conversation law and equation, make use of modern computer technique and numerical value method to study burning, heat transmission, gas flow, element movement and relationship between engine and turbo charger. According to the characteristic of direct injection diesel engine with four strokes, using advanced engine performance simulation software, BOOST, we set up the model of JX493ZLQ diesel engine to simulate engine operation process and optimize some major parameter which affect the engine performance. The matching calculation on turbo-charger with engine is carried out and a good theoretical guide effect is applied on performance optimization of engine. In order to validate the effectiveness of the simulation calculation, performance experiment is carried out. The results from calculation and experiment show that simulation model is reasonable.The simulation system of diesel operation process studied in this paper plays convenient role in the design of diesel engine with strong pertinency, convenient usage and low request of hardware.