动力总成惯性参数快速一体化测试系统研究
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西北工业大学航天学院西安710072

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TH122

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Research on fast integration system for measuring inertial parameters of powertrain
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School of Astronautics,Northwestern Polytechnical University,Xi′an 710072,China

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    摘要:

    针对目前动力总成惯性参数测试方法在精度、效率、安全性、成本4个方面无法兼顾的问题,设计了一套惯性参数快速一体化测试系统。该系统只需一次装夹即可测取所有惯性参数,测试时间不超过90 min。提出小角度翻转测量法,相对于传统的竖立、侧立、悬吊安装测量法,该方法保证了产品测量的安全性。标准件实测结果显示,该系统质量测量相对误差为0.024%、质心测量最大绝对误差为-0.2 mm、转动惯量测量最大相对误差为0.91%、惯性主轴方位角最大偏差为-1.79°。与4种常用测试方法进行对比,结果表明该系统测试精度有明显提高,测试效率和安全性也较高、并且成本适中。该系统易于推广,适用于多种产品的惯性参数测量。

    Abstract:

    Aiming at the problem that precision, efficiency, security and cost could not be balanced with existing inertial parameters measurement methods of powertrain, a fast integration system for measuring inertial parameters was designed. All the inertial parameters can be measured by this system in one installation and less than 90 min. A small sloping angle method was proposed to ensure the measurement security of products in comparison with traditional vertical, side lying and suspensory installation method. The actual measurement results of standard specimen show that the relative error of mass measurement is 0.024%, the maximum absolute error of centroid measurement is -0.2 mm, the maximum relative error of moment of inertia measurement is 0.91%, the maximum deviation of orientation angles of principal inertia axis is -1.79°.The comparisons with 4 common measurement methods show that the measurement precision is improved significantly, the efficiency and security is higher, and the cost is moderate. This system can easily be applied in real application and adapted in multiple products’ inertia parameters measurement.

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温晶晶,邓聃,汤海亮,吴斌.动力总成惯性参数快速一体化测试系统研究[J].仪器仪表学报,2017,38(2):351-360

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  • 在线发布日期: 2017-07-20
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