Continuous measurement method and apparatus of the wheel load and lateral pressure of the railway vehicle according to the ground side measurement

摘要

PROBLEM TO BE SOLVED: To continuously measure a wheel load and lateral force of a rail, which includes a part provided with cross ties, by arranging plural pairs of sensors, which are formed by attaching strain measuring sensors onto a rail at two positions at a distance close to a space between the cross ties, over the length of at least one circumference of a wheel, and measuring fluctuation of the wheel load and the lateral force over the length of one circumference of the wheel. ;SOLUTION: A pair of wheel load measuring strain sensors P₁ for measuring shearing strain of a rail 3 are attached to positions A₁, A₂ between cross ties 1, 2 adjacent to each other. A pair of sensors P₂ are attached to points B₁, B₂ so as to ride over the cross ties 1, 2. Since plural sensors of the two pairs of strain sensors P₁, P₂ are alternately arranged, a measurement territory can be freely extended. A pair of lateral force measuring strain sensors Q₁ for measuring shearing strain of the rail 3 are attached to points A₁, A₂ between the cross ties 1, 2 adjacent to each other. A pair of sensors Q₂ are attached to points B₁, B₂ so as to ride over the cross ties 1, 2. The pairs of sensors P₁, P₂ and the pairs of sensors Q₁, Q₂ are connected to a strain gauge by bridge connection.;COPYRIGHT: (C)1998,JPO