How to draw the following diagram?

Question

I got help from enter link description here but I was wondering how can I re-purpose the code to get the diagram as in the attachment.

\documentclass{article}
\usepackage{graphicx} % to add figure environment that comes with caption
\usepackage{caption} %if you don't want to float your figure for using \captionof
\usepackage{tikz}           
\usetikzlibrary{calc,patterns,decorations.pathmorphing,decorations.markings,circuits}
\begin{document}
Using \verb|graphicx| package:
\begin{figure}[htbp]
\centering
     \begin{tikzpicture}[every node/.style={draw,outer sep=0pt,thick}]
     \tikzstyle{spring}=[thick,decorate,decoration={zigzag,pre length=0.3cm,post length=0.3cm,segment length=6}]
     \tikzstyle{dampener}=[thick,decoration={markings, mark connection node=dmp,mark=at position 0.5 with {
     \node (dmp) [thick,inner sep=0pt,transform shape,rotate=-90,minimum width=15pt,minimum height=3pt,draw=none] {};
     \draw [thick] ($(dmp.north east)+(2pt,0)$) -- (dmp.south east) -- (dmp.south west) -- ($(dmp.north west)+(2pt,0)$); \draw [thick] ($(dmp.north)+(0,-5pt)$) -- ($(dmp.north)+(0,5pt)$);}}, decorate]
     \tikzstyle{ground}=[fill,pattern=north east lines,draw=none,minimum width=4cm,minimum height=0.3cm]

     \begin{scope}
     \node at (0,0) [draw,rectangle, minimum width=2cm,minimum height=1cm,anchor=south,,transform shape](m1) {$m1$};
      \draw [very thick, -latex](m1.north) -- +(0,1);
     \node at (0,-2) [rectangle, minimum width=2cm,minimum height=1cm,anchor=north,,transform shape](m2) {$m2$};
     \draw [very thick, -latex](m2.north) -- +(0,1);
     \draw [spring] (-0.5,-2) -- (-0.5,0) node[midway,left=0.3cm] {k1};
      \draw [dampener,label=D1,] (0.5,-2) -- (0.5,0)node[midway,right=0.4cm] {d1};
      \node (ground1) at (0,-5)  [ground, anchor=north] {};
%        \draw [ground] (-1,-5) -- (1,-5);
      \draw [spring] (-0.5,-5) -- (-0.5,-3)node[midway,left=0.3cm] {k2};
 %     \draw [spring] (-0.5,-5) -- (-0.5,-3)node[draw=none,midway,left=0.3cm] {k2}; % If you don't want borders around lables use [draw=none]
       \draw [dampener] (0.5,-5) -- (0.5,-3)node[midway,right=0.4cm] {d2};

      \end{scope}
        \end{tikzpicture}
        \caption{My figure}\label{fig:myfigure1}
      \end{figure}
\end{document}

I need the base slightly wiggly to represent irregular road and a small circle as the tip of the system at the point of contact between the suspension system and the road. I don't have the logic to create wiggly line.

The code is for the picture on the left and I want the diagram on the right.

Answer 1

your image is low quality, so some details are not clear and probably i misinterpreted them. after redesign styles of the image elements, i obtain the following image:

\documentclass[tikz, margin=3mm]{standalone}
\usetikzlibrary{backgrounds,
                calc,
                decorations.pathmorphing, decorations.markings,
                patterns, positioning,
                quotes
                }

\begin{document}
     \begin{tikzpicture}[auto,
  node distance = 24mm and 4mm,
     box/.style = {draw, semithick, fill=white,
                   minimum width=22mm,minimum height=11mm},
     dot/.style = {circle, fill, minimum size=3mm,
                   node contents={}},
pics/dmp/.style = {code={\node (dmp) [minimum width=4mm, minimum height=1mm,
                                      fill=white, inner sep=0mm] {};,
                         \draw[semithick, shorten >=-0.5mm, shorten <=-0.5mm]
                         (dmp.south west) |- (dmp.north east) -- (dmp.south east);
                         \draw[ultra thick, shorten >=1mm, shorten <=1mm]
                                    (dmp.south west) -- (dmp.south east);}
                  },
 damper/.style = {decoration={markings,
                             mark=at position 0.5 with \pic{dmp} {};
                             },
                  postaction={decorate}},
 spring/.style = {thick,decorate,
                  decoration={zigzag, pre length=8mm, post length=8mm, segment length=4}},
     sx/.style = {xshift=#1mm},
    fup/.style = {very thick, -latex},
  fdown/.style = {very thick, latex-},
every path/.append style = {thick, line cap=rect}
                    ]
%
\node (m1)  [box]               {$M_{s}$};
    \draw[fdown]   (m1.north) to ["$F_b$"] ++(0,1);
    \draw[fup]     (m1.east) -| ++(1,-0.5) node[below] {$z_s$};
\node (m2)  [box, below=of m1]  {$M_{us}$};
    \draw           ([sx=-6] m2.west) -- (m2.west);
    \draw[fdown]      ([sx=-4] m2.west) to ["$F_w$" '] +(0,-1);
    \draw[fup]    (m2.east)  -| ++(1,-0.5) node[below] {$z_{us}$};;
%
    \draw[spring]   (m1.225) to ["$K_s$" '] (m2.135);
    \draw[damper]   (m1.315) to [sx=4,pos=0.4,"$C_s$"  ] (m2.45);
\node (c)   [dot,below=of m2];
    \draw[spring]   (m2.225) to ["$K_t$" '] (m2.225 |- c);
    \draw[damper]   (m2.315) to [sx=4,pos=0.4,"$C_t$"  ] (m2.315 |- c);
    \draw           (m2.225 |- c) -- (c)
                    (m2.315 |- c) -- (c);
    \draw[very thick, -latex]   (c.south) -| ++ (0.75,-0.5) 
        node[below, rounded corners, inner sep=2pt, fill=white] {$z_f$};
% ground
\scoped[on background layer]
\draw[gray, pattern=north east lines] 
        let \p1 = ($(0,0)-(c.south)$),
            \n1 = {veclen(\x1,\y1)} in
        plot[domain=-6.243184:6.243184,samples=30] (\x/3, {-\n1-4*sin(\x r)}) |- ++ (-3.141592,-1) -| cycle;
    \end{tikzpicture}
\end{document}

edit: encouraged by @KJO comment i add missed ground, \end{document} and correct arrow direction. i'm still not sure of arrows presenting force are correct drawn (to my knowledge of physics are unusual).