A set of in-vessel resonant magnetic perturbation （RMP） coils for MHD instability suppression is proposed for the design of a HL-2M tokamak. Each coil is to be fed with a current of up to 5 kA, operated in a frequen...A set of in-vessel resonant magnetic perturbation （RMP） coils for MHD instability suppression is proposed for the design of a HL-2M tokamak. Each coil is to be fed with a current of up to 5 kA, operated in a frequency range from DC to about I kHz. Stainless steel （SS） jacketed mineral insulated cables are proposed for the conductor of the coils. In-vessel coils must withstand large electromagnetic （EM） and thermal loads. The support, insulation and vacuum sealing in a very limited space are crucial issues for engineering design. Hence finite element calculations are performed to verify the design, optimize the support by minimizing stress caused by EM forces on the coil conductors and work out the temperature rise occurring on the coil in different working conditions, the corresponding thermal stress caused by the thermal expansion of materials is evaluated to be allowable. The techniques to develop the in-vessel RMP coils, such as support, insulation and cooling, are discussed.展开更多
In this paper .from the .fundamental equations of three `dimensional elasticmechanics , we have found a sequence of asymptotic solving equations of thick ringshell (or body) applied arbitrary loade by the perturbation...In this paper .from the .fundamental equations of three `dimensional elasticmechanics , we have found a sequence of asymptotic solving equations of thick ringshell (or body) applied arbitrary loade by the perturbation method based upon ageometric small parameter a=r_o/R_O , which may be divided into two independentequation groups which are similar to the equation groups for plane strain and torsionalproblems. Using these equations, we have also found first order and second orderapproxiniate solutions of thick ring shell applied moment M_o.展开更多
In this paper. from asymptotic equations of thicking shell obtained on the basis of the equations of three dimensional elastic mechanics using geometric small parameter we find the solutions of the stresses and the de...In this paper. from asymptotic equations of thicking shell obtained on the basis of the equations of three dimensional elastic mechanics using geometric small parameter we find the solutions of the stresses and the deformations of thick ring shell submitted to the action of internal pressure q.展开更多
基金supported by National Magnetic Confinement Fusion Science Program of China(No.2009GB101005)
文摘A set of in-vessel resonant magnetic perturbation （RMP） coils for MHD instability suppression is proposed for the design of a HL-2M tokamak. Each coil is to be fed with a current of up to 5 kA, operated in a frequency range from DC to about I kHz. Stainless steel （SS） jacketed mineral insulated cables are proposed for the conductor of the coils. In-vessel coils must withstand large electromagnetic （EM） and thermal loads. The support, insulation and vacuum sealing in a very limited space are crucial issues for engineering design. Hence finite element calculations are performed to verify the design, optimize the support by minimizing stress caused by EM forces on the coil conductors and work out the temperature rise occurring on the coil in different working conditions, the corresponding thermal stress caused by the thermal expansion of materials is evaluated to be allowable. The techniques to develop the in-vessel RMP coils, such as support, insulation and cooling, are discussed.
文摘In this paper .from the .fundamental equations of three `dimensional elasticmechanics , we have found a sequence of asymptotic solving equations of thick ringshell (or body) applied arbitrary loade by the perturbation method based upon ageometric small parameter a=r_o/R_O , which may be divided into two independentequation groups which are similar to the equation groups for plane strain and torsionalproblems. Using these equations, we have also found first order and second orderapproxiniate solutions of thick ring shell applied moment M_o.
文摘In this paper. from asymptotic equations of thicking shell obtained on the basis of the equations of three dimensional elastic mechanics using geometric small parameter we find the solutions of the stresses and the deformations of thick ring shell submitted to the action of internal pressure q.
