架線・パンタグラフ間の接触力測定手法に関する研究

第1報, パンタグラフの慣性力評価方法の改善による接触力測定可能周波数範囲の拡大

抄録

The contact force between pantograph and contact wire is an important factor to estimate the performance of current collection of electric railways. However, the frequency range of measuring the contact force by the conventional method is not sufficient for this purpose. To measure the contact force accurately, it is required to precisely evaluate the inertia force of panhead. However, large errors occur in the inertia force in the high frequency region when measured by the existing method. This paper proposes a new method to measure the contact force, which can evaluate the inertia force of panhead precisely even in high frequency region by using the measurements of acceleration at plural points on the panhead. The results of theoretical calculation and excitation test of a pantograph can show that this method is effective for accurate measurement.