Flexible posture adjusting position control device

Abstract

The invention relates to the field of design of impact test devices, in particular to a flexible posture adjusting position control device. The device comprises a suspending connection device body, alimiting device body, a supporting and guiding device body, a posture adjusting device body, a waveform generating device body, a displacement sensor and the like. By means of the device, the connecting mode of general drop tests is effectively improved, the existing rigid connection mode is changed into the flexible connection mode, and posture adjustment of test articles is easier to achieve; the weight loss requirement of fixtures in the process of designing the fixtures does not need to be considered, added mass of the test articles cannot be generated either, and the influence of inertialloads is effectively controlled, so that simulation is truer and more reliable; the test capability range of a testbed is effectively enlarged, and the limitation and the influence of technological parameters of the testbed on the tests are reduced; multiple limitations such as the height of a guide rail, the weight of a basket special for the testbed and the installing posture requirement of thetest articles are avoided, the workload of improvement of the capability of the testbed, the transformation of the test fixtures, multiple times of reloading and the like is reduced, and the cost andmanpower resources are effectively saved.

Description

technical field [0001] The invention relates to the field of impact test device design, in particular to a flexible posture adjustment position control device suitable for drop impact tests. Background technique [0002] In the strong impact test in the dynamic test, the impact energy of the test piece is usually guaranteed by controlling the speed of the test piece. It is very practical and effective to use the drop test method to simulate the impact process. The impact velocity of the test piece can be adjusted by adjusting the height of the drop system, thereby ensuring the impact energy of the test piece. For the strong impact test, the drop test is used. In order to ensure the accuracy of the test results and the calculation of the impact energy of the test piece, it is necessary to ensure the accuracy of the lifting height of the test piece and ensure that the attitude of the test piece conforms to the real use state. The following factors need to be considered: the t...

AI Technical Summary

Problems solved by technology

However, for some test pieces, such as oil bags, sling seats, etc., it is necessary to simulate the impact of aircraft crash impact and armored vehicle explosion impact. Control, the additional mass has a great influence on the inertial load during strong impact, and there should be no effect of additional mass

In the case of strictly controlling the quality of the falling system, the designed support and guide device cannot meet the size requirements and strength and stiffness requirements of the guide rail. If the requirements are met, its mass is too large, which does not meet the weight requirements of the test or is easy to cause damage to the test piece , the test piece cannot be directly connected to the hanging basket using the traditional rigid test fixture, it needs to be connected with a hanging rope, and the attitude of the test piece must be strictly controlled

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