Recent content by omarxx84

hi colleages...is the equation below represent a dynamic equilibrium of vibrated beam-column member and simple boundary conditions? M(x,t)=Q(0,t)*x+integral{q(x,t)-mass*acceleration(x,t)}*(L-x)dx where M(x,t)= dynamic moment. Q(0,t)=shear at x=0. q(x,t)= external dynamic loading...

hi colleages...is the equation below represent a dynamic equilibrium of vibrated beam-column member and simple boundary conditions? M(x,t)=Q(0,t)*x+integral{q(x,t)-mass*acceleration(x,t)}*(L-x)dx where M(x,t)= dynamic moment. Q(0,t)=shear at x=0. q(x,t)= external dynamic loading...

please...What is the solution of the governing linear partial differential equation, with variable coefficients, of motion attached in the attached file. and i will be very grateful for you...

what is the best books or papers for solving nonlinear integro-differential equations??

[tex]x^2\sqrt{x}[\tex]

EI(x,t) (∂^4 u(x,t))/〖∂x〗^4 -N (∂^2 u(x,t))/〖∂x〗^2 +m(x,t) (∂^2 u(x,t))/〖∂t〗^2 =0 please, try to read, then help me to solve it.

can anyone help me to solve this equation ?. is this equation linear or not? knowing, this equation represents the equation of motion for frame members for materials which have different moduli in tension and compression (civil engineering). "EI" ("x,t" ) ("∂" ^"4" "u" ("x,t" ))/〖"∂x" 〗^"4"...

Thank you very much. but is the equation ( EI(x,t)U''''(x,t)+M(x,t)V''(x,t)=0 )separable or not?How?if it isnot separable how can be solved?

hi colleages. is Bernoulli-Euler theory valid in the dynamic analysis as following: M/EI=1/R where, M= moment EI=stiffness R= curvature is this equation valid when M becomes a function of x and t, as follows: M(x,t)/EI=1/R

please, my colleages, can tell me is the equation below is linear or nonlinear PDE? EI(x,t)U''''(x,t)+M(x,t)V''(x,t)=0 U''''=4th partial derivative with respect to x only. V''=2nd partial derivative with respect to t only.

CAN ANYONE GIVE ME A GUIDANCE TO SOLVE THE EQUATION BELOW: EI(x,t)U''''(x,t)+M(x,t)V''(x,t)=0 where U''''=4th partial derivative with respect to x only. V''=2nd partial derivative with respect to t only.

My colleages. the cubic equation is as shown below: 2N(Ep-En)X^3-3[M(x,t)(Ep-En)-2NEnh]X^2-6Enh[M(x,t)+Nh]X+Enh^2[3M(x,t)+2Nh]=0 this is cubic equations. i want to solve this equation and get the roots of it. and all the coefficients of the equation are constant except M(x,t). By meaning...

i am so sorry,

well mrbohn1 i'll try to write the real equation in the form: ax^3-b(x,t)x^2-c(x,t)x+d(x,t)=0 but don't overlook of the real equation in the first post to know what i mean... thanks

Hi colleages. can you help me to solve the cubic equation below: 2N(Ep-En)hp^3(x)-3[M(x,t)(Ep-En)-2NEnh]hp^2(x)-6Enh[M(x,t)+Nh]hp(x)+Enh^2[3M(x,t)+2Nh]=0 notice that all variables in the...