  One superconducting taper-type half-wave resonator (HWR) with frequency of
162.5MHz, \b{eta} of 0.09 has been developed at Peking University, which is
used to accelerate high current proton ($\sim$ 100mA) and $D^{+}$($\sim$ 50mA).
The radio frequency (RF) design of the cavity has been accomplished. Herein, we
present the mechanical analysis of the cavity which is also an important aspect
in superconducting cavity design. The frequency shift caused by bath helium
pressure and Lorenz force, and the tuning by deforming the cavity along the
beam axis will be analyzed in this paper.
