| 考虑土壤特性的车载榴弹炮射击稳定性研究 |
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| 引用本文： | 杨国来,陈运生.考虑土壤特性的车载榴弹炮射击稳定性研究[J].南京理工大学学报(自然科学版),2006,30(4):495-498. |
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| 作者姓名： | 杨国来 陈运生 |
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| 作者单位： | 南京理工大学,机械工程学院,江苏,南京,210094;南京理工大学,机械工程学院,江苏,南京,210094 |
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| 基金项目： | 国防预研基金;教育部留学回国人员科研启动基金 |
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| 摘 要： | 为了预测车载榴弹炮在不同条件下的射击稳定性，需要建立火炮发射时的动力学模型。根据车载榴弹炮的具体特点，利用虚拟样机软件ADAMS构建了某车载榴弹炮多体系统动力学模型，给出了考虑液压油可压缩性的液压刚度计算方法，建立了考虑液压座板和液压驻锄结构形式和土壤特性的接触动力学模型，为改善数值计算的奇异性，引入了一种近似的摩擦力连续函数，模拟了不同土壤特性对车载榴弹炮射击稳定性的影响。
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| 关 键 词： | 车载榴弹炮 动力学仿真 土壤力学 射击稳定性 刚度 |
| 文章编号： | 1005-9830(2006)04-0495-04 |
| 收稿时间： | 2005-02-22 |
| 修稿时间： | 2006-05-20 |
Investigation on Firing Stability of Vehicle Mounted Howitzer with Consideration of Soil Property |
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| YANG Guo-lai,CHEN Yun-sheng.Investigation on Firing Stability of Vehicle Mounted Howitzer with Consideration of Soil Property[J].Journal of Nanjing University of Science and Technology(Nature Science),2006,30(4):495-498. |
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| Authors: | YANG Guo-lai CHEN Yun-sheng |
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| Institution: | School of Mechanical Engineering, NUST, Nanjing 210094,China |
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| Abstract: | A dynamics model of howitzer on launch is investigated for predicting the firing stability of vehicle mounted howitzers under different conditions. According to the specified characteristics of the howitzer, a multi-body dynamics model is constructed by means of virtual prototyping package titled by ADAMS. The algorithm for calculating hydraulic stiffness is presented by considering oil compressibility. Contact dynamics model is developed, where the structure of hydraulic base plate and hydraulic spades, and the performance of terrain are taken into account. An approximate continuous friction function is employed for improving the singularity of numerical simulation. The effects of soils with different properties on firing stability are simulated for a vehicle mounted howitzer. |
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| Keywords: | vehicle mounted howitzers dynamics simulation terramechanics firing stability stiffness |
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