CN201420726200.0U A kind of impulse force nail hammer a kind of impulse force nail hammer according to claim 1, is characterized in that: described spacer pin top is through rounding process. 238000004080 punching Methods 0.000 claims abstract description 4.210000000282 Nails Anatomy 0.000 title claims abstract description 37.Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Application filed by 江志富 filed Critical 江志富 Priority to CN201420726200.0U priority Critical patent/CN204263113U/en Application granted granted Critical Publication of CN204263113U publication Critical patent/CN204263113U/en Status Expired - Fee Related legal-status Critical Current Anticipated expiration legal-status Critical Links Inventor 江志富 Original Assignee 江志富 Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Fee Related Application number CN201420726200.0U Other languages Chinese ( zh) Google Patents CN204263113U - A kind of impulse force nail hammer In several cases the angular component is larger than that of the direct pulse.CN204263113U - A kind of impulse force nail hammer ‘Refracted’ pulses, found in results from the shallow SV-P source, have a larger angular than radial component. The connection between the higher modes of surface waves and groups of certain reflected pulses is given. GV ν is absent in results from the P-source. The radial component of GV ν is 2–3 times larger than its angular component and is similar to the G ν guided waves from an SH-torque source. The GV ν surface-waves are the largest guided waves to arrive from the deep SV-P source, they are largest except for the Rayleigh-wave from the shallow and medium depth SV-P sources. The mode R 3 i has larger radial than angular component and is found equally from both sources. They are larger in the results from the P-source, and smaller from the SV-P source. Higher mode surface waves R 2 i have larger angular than radial component. The higher modes of surface waves are a result of sphericity only and are compared with the observed higher modes and with the higher modes in a plane layered model.Ī comparison of the present SV-P source with an explosive P-source shows that the Rayleigh-waves R 1 ifrom the SV-P source have a larger high-frequency content than R 1 i from the P-source, show less dispersion and have larger amplitudes when caused by shallow and medium-depth sources. The theoretical seismograms, which were computed for several epicentral distances θ (0°<θ<180°), show several modes of surface waves in addition to various reflected and diffracted pulses.

An exact solution is obtained for the displacement of the surface of a uniform elastic solid sphere of radius a due to an impulsive force applied in radial direction at a point situated at a depth d below the surface.

Impulsive force models