Optimization Of The Digital Drop Hammer Impact Test Machine

With the rapid development of science and technology,computer and information technology is updating in a high speed.The rapid development of computers and modern information technology provided a scientific and technical basis for digital apparatus.The emergence of digital equipment has broken the limitations of the traditional one.As a result,it is being widely used in the life of science and technology.The demand for digital equipment from all walks of life is also growing day by day.In this essay,the object of the study is the hammer impact testing machine.A discussion will be made on the reformation of both the mechanical structure system and the measurement and control system of the drop hammer impact testing machine.Things related to the perfection of the system will also be discussed.Based on the requirement of impact test and the purpose of transformation,this essay will first make an analysis and comparison on the transformation project.The reformation and perfection are respectively made on the method of providing impact energy,the safety precautions of the drop hammer and testing machine and the newly-added load cell.These reformation strategies and projects of the machine's mechanical structure will be discussed in detail.Also,a discussion will be made especially on the choice of sensors when impact testing machine is used to measure impact force.A comparison will be made on the difference of the strain type force sensor and the piezoelectric force transducer's adaption in the test.After optimizing the mechanical structure of the testing machine and making a better choice of the load cell,the experimental parameter and the range of choosing the control factors of the machine are enlarged,and also the precision of the experimental results is increased.In this essay,aiming at the mechanical structure that being reformed,a discussion will be made on the promotion and reformation of the machine's measurement and control system,making it adapt to the new hardware.Meanwhile,the statistics measurement ability of the machine is improved.The control system is perfected.The method of software control and data processing is optimized.What's more,an introduction will be made on the measurement and control system as well as the data processing system of the drop hammer impact testing machine which has been transformed.Finally,through impact test,the practicability of the drop hammer impact test machine will be illustrated.After analyzing the special data recorded in the experiment,a discussion will be made on the problems that may happen to the machine during the impact test.The matters needing attention are also included.