The determination of the tire–rim interface loadings is a difficult but key task for the aircraft wheel designer to predict the wheel service life. In conjunction with an optimal parameterization of these loadings previously defined by the authors, the optimal sensor placement problem is considered to identify the loading parameters at best. An optimization procedure of the wheel instrumentation, which consists of several strain gauges, is thus proposed to minimize the uncertainties of the sought parameters during the identification process. Two criteria are reviewed, namely, the determinant and the lowest eigenvalue of the Fisher information matrix, and different optimization procedures are assessed. The effectiveness of the method is proven considering the identification of an inflation case. The optimized instrumentations lead to drastically reduced uncertainties of the loading parameters and thus ensure reliable inverse identifications.

轮胎-轮辋界面载荷的确定对于飞机设计者来说，预测轮子的使用寿命是一项艰巨而关键的任务。结合作者先前定义的这些载荷的最佳参数化，可以考虑最佳传感器放置问题，以最好地识别载荷参数。因此，提出了由多个应变仪组成的车轮仪表的优化程序，以最大程度地减少识别过程中所需参数的不确定性。审查了两个标准，即Fisher信息矩阵的行列式和最低特征值，并评估了不同的优化程序。考虑到确定通货膨胀情况，证明了该方法的有效性。