Abundant closed-form wave solutions to the simplified modified Camassa-Holm equation

•Explore the new exact travelling wave solutions of the simplified modified Camassa-Holm equation.•The new auxiliary equation method is applied and attained exact solutions.•Effects of the free parameters on the single spike, multiple spikes, kink, anti-peakon, singular spike soliton, anti-bell shape soliton solutions are discussed.•To comparison between our solutions and others solutions.•Stability analysis is discussed. The simplified modified Camassa-Holm (SMCH) equation is an important nonlinear model equation for identifying various wave phenomena in ocean engineering and science. The new auxiliary equation (NAE) method has been applied to the SMCH equation. Base on the method, we have obtained some novel analytical solutions such as hyperbolic, trigonometric, exponential, and rational function solutions of the SMCH equation. For appropriate values of parameters, three dimensional (3D) and two dimensional (2D) graphs are designed by Mathematica. The stability of the model is also discussed in this manuscript. The dynamic and physical behaviors of the solutions derived from the SMCH equation have been extensively discussed by these plots. All our solutions are indispensable for understanding the nonlinear phenomena of dispersive waves that are important in ocean engineering and science. In addition, our results are essential to clarify the various oceanographic applications containing ocean gravity waves, offshore rig in water, energy associated with a moving ocean wave and numerous other related phenomena. Finally, the obtained solutions are helpful for studying wave interactions in many new structures and high-dimensional models.