METHOD OF MEASURING LONGITUDINAL FORCE IN COMPONENTS OF LOADED ROD TRUSS

摘要

the invention u043eu0442u043du043eu0441u0438u0442u0441u00a0 to mechanical means u0438u0437u043cu0435u0440u0435u043du0438u00a0 efforts. to increase the accuracy and decrease u0438u0437u043eu0431u0440u0435u0442u0435u043du0438u00a0 u00a0u0432u043bu00a0u0435u0442u0441u00a0 efforts u043du0430u0433u0440u0443u0436u0435u043du0438u00a0. the essence of the method is that a u043au0440u0443u0442u00a0u0449u0438u043c moment make me over and u0438u0437u043cu0435u0440u00a0u044eu0442 corner u0437u0430u043au0440u0443u0447u0438u0432u0430u043du0438u00a0 in the middle passage, and the importance of longitudinal u0443u0441u0438u043bu0438u00a0 u043eu043fu0440u0435u0434u0435u043bu00a0u044e t of the u0432u044bu0440u0430u0436u0435u043du0438u00a0 n = a / ip [2Mu043aL / 2 - EIN (/ * 98ML) 2 - GIu043a], where n is the longitudinal force;a is the area of u0441u0442u0435u0440u0436u043d;ip - u043fu043eu043bu00a0u0440u043du044bu0439 moment of inertia relative to the center of bending;Mu043a - u043au0440u0443u0442u00a0u0449u0438u0439 moment;l is the length of u0441u0442u0435u0440u0436u043d;is the coefficient of length;is the measured angle u0437u0430u043au0440u0443u0447u0438u0432u0430u043du0438;e, g, respectively, elastic modulus and shear modulus;in u0441u0435u043au0442u043eu0440u0438u0430u043bu044cu043du044bu0439 moment of inertia;Iu043a - the moment of inertia of u043au0440u0443u0447u0435u043du0438u00a0.