METHOD OF MEASURING ANGLE AND MASS OF COUNTERWEIGHT (VERSIONS) Russian patent published in 2003 - IPC

FIELD: mechanical engineering; dynamic balancing. SUBSTANCE: according to proposed method of measuring angle ϕ_cw and mass M_cw of counterweight ("light place") for unbalanced object, test weights, masses M_i and M_j with resulting mass M are installed in turn in support points on object so that resulting mass M should displace in plane of balancing to any angle ϕc with step Δϕ;. Vibration speed V_k is measured by vibrometer at each step and relationship between V_k and ϕ is constructed in form of table or in form of "balancing figure" in polar system of coordinates V = (ϕ) and, basing on obtained relationship, angle of counterweight ϕ_cw in point of minimum of vibration speed V_min is measured. Version of method is measurement of vibration speed V_o without test weight including two measurements of vibration speeds V₁ and V₂ with resulting test weight of mass M in points ϕ₁ and ϕ₂ and determination of mass of counterweight M_cw and angle of counterweight ϕ_cw from equations V2o

= KM2cw, V21 = K(M²+M2cw-2M_cwMcos(ϕ₁-ϕ_cw),, V22 = K(M²+M2cw-2M_cwMcos(ϕ₂-ϕ_cw).. EFFECT: simplified measurements, reduced cost of operations, improved accuracy. 5 cl, 2 tbl